http://lod.bco-dmo.org/id/dataset/2591
eng; USA
utf8
dataset
Highest level of data collection, from a common set of sensors or instrumentation, usually within the same research project
Biological and Chemical Oceanography Data Management Office (BCO-DMO)
Unavailable
508-289-2009
WHOI MS#36
Woods Hole
MA
02543
USA
info@bco-dmo.org
http://www.bco-dmo.org
Monday - Friday 8:00am - 5:00pm
For questions regarding this resource, please contact BCO-DMO via the email address provided.
pointOfContact
2010-08-14
ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data
ISO 19115-2:2009(E)
Aerosols, long irradiation neutron activation analysis from R/V Thomas G. Thompson cruises in the Arabian Sea in 1995 (U.S. JGOFS Arabian Sea project)
1997-06-30
publication
1997-06-30
revision
BCO-DMO Linked Data URI
1997-06-30
creation
http://lod.bco-dmo.org/id/dataset/2591
Dr Neil Tindale
Texas A&M University
principalInvestigator
Biological and Chemical Oceanography Data Management Office (BCO-DMO)
Unavailable
508-289-2009
WHOI MS#36
Woods Hole
MA
02543
USA
info@bco-dmo.org
http://www.bco-dmo.org
Monday - Friday 8:00am - 5:00pm
For questions regarding this resource, please contact BCO-DMO via the email address provided.
publisher
Cite this dataset as: Tindale, N. (1997) Aerosols, long irradiation neutron activation analysis from R/V Thomas G. Thompson cruises in the Arabian Sea in 1995 (U.S. JGOFS Arabian Sea project). Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version June 30, 1997) Version Date 1997-06-30 [if applicable, indicate subset used]. http://lod.bco-dmo.org/id/dataset/2591 [access date]
Aerosols, long irradiation neutron activation analysis Dataset Description: <pre>
<b>PI:</b> Neil Tindale
<b>of:</b> Texas A&M University
<b>dataset:</b> Aerosols, long irradiation neutron activation analysis
<b>dates:</b> January 08, 1995 to December 18, 1995
<b>location:</b> N: 22.8459 S: 09.8871 W: 57.2609 E: 68.2687
<b>project:</b> Arabian Sea
<b>ship:</b> Thomas Thompson
<a href="http://usjgofs.whoi.edu/PI-NOTES/arabian/Tindale.html"><b>PI Notes and Methodology</b></a>
<a href="http://usjgofs.whoi.edu/PI-NOTES/arabian/DMO-aerosols.html"><b>A note from DMO on supplementary fields</b></a>
</pre>
<br>
HiVol pump sampler methods are described in: N. W. Tindale and P. P. Pease, Aerosols
over the Arabian Sea: Atmospheric transport pathways and concentrations of dust
and sea salt, Deep Sea Research Part II: Topical Studies in OceanographyVolume 46,
Issues 8-9, August 1999, Pages 1577-1595.
( <a
href="http://www.sciencedirect.com/science/article/B6VGC-3Y0RMGY-3/2/e32070ccfcbd49427d79b1b5e77699e6">view article at ScienceDirect</a> ) Methods and Sampling: <h2>Dr. Neil Tindale, Texas A & M Univ.
JGOFS/Arabian Sea
Aerosols, short and long irradiation neutron activation analysis
</h2>
<p><b>JGOFS Arabian Sea Aerosol Data</b> <br>
This mineral aerosol concentration data set is from samples collected
during several cruises on the R/V Thomas Thompson during the JGOFS
Arabian Sea field program. </p>
<strong>Air Sampling Pump System</strong><br>
<p>The air sampling pumps, controller, electronics, and a clean bench were mounted in a 6-m shipping container located on the foredeck's container storage rack. The air sampler was a HiVol system loaded with a single unwashed Whatman 41 filter and with a flow rate of about 1.2-1.4 m3 min-1. Air flow rates were measured daily using an orifice-type flow tube that had been calibrated to a National Institute of Standards and Technology (NIST) certified EG&G FT32 turbine flowmeter. Air volume errors were between 5 and 10%; the total combined air volume and analytical error was about 10%. The experimental equipment was similar to that described in Schwartze et al. (1988) and used on previous atmospheric-oceanographic programs (Betzer et al., 1988).</p>
<p>References: <br>
Betzer, P.R., Carder, K.L., Duce, R.A., Merrill, J.T., Tindale, N.W., Uematsu, M., Costello, D., Young, R.,
Feely, R.A., Breland, J.A., Bernstein, R., Greco, T., 1988. A pulse of Asian dust to the central North Pacific: long-range transport of giant mineral aerosols. Nature 336, pp. 568-571. <br><br>
Schwartze, G., Boldi, R., Wasco, T., Duce, R., 1988. PASS: a portable atmospheric sampling system for chemical studies in the marine troposphere. Journal of Atmospheric and Oceanic Technology 5, pp. 561-570.
</p>
<p>The data set includes the sampling period
for each sample; the "Day of Year", yrday, number for the start of the
sampling period for each sample; and the concentration of different
elements for each sample, in micrograms per cubic meter. For the
sampling period, "nd" is used as a filler to indicate "no data" gaps in
the data array. The dust values are estimated using aluminum
concentrations determined by neutron activation analysis. While most
samples cover a multi-day period, we only have data for about 150
days. We didn't participate in all of the cruises and, on the cruises
where samples were collected, often sampling conditions were less than
ideal (bad weather, ship maneuvering, relative wind from astern etc.).
A few samples that were collected showed obvious contamination from
local sources, presumably from material from the R/V Thompson or from
nearby fishing boats, and these samples were discarded and are not
included in the data set. While the sampling period represents the
period during which sampling occurred, sampling was usually not
continuous. Sampling was frequently stopped, whenever sampling
conditions were no longer suitable. Thus the concentration value at
any particular date represents a time integrated sample which is
usually non-continuous.</p>
<pre>Cautionary comments:
1. There may be a problem with the estimate for the mineral "dust"
concentration. Most researchers use the average crustal ratio to estimate
mineral dust concentrations using elemental concentration data (Al, Fe,
etc.). Surface sand and silt samples that were collected in Oman in the
Wahibah Sands region have distinct, non-crustal ratios. If individual
aerosol samples are comprised of material from distinct sources, including
Oman, then it is not unreasonable for their elemental ratios to differ from
the published "average" crustal ratio that is used in most aerosol studies.
2. The amount of Ti in all the aerosol samples was small, despite there
being a reasonable amount of dust material in most samples. The peaks for
Cr and Ti overlap in the neutron activation short irradiation analysis and
if significant quantities of Cr are present, this will interfere with the Ti
analysis. With the exception of one sample, the Ti values are at or below
the detection limit. The sole value above the detection limit was corrected
for the Cr contribution using a correction based on the Cr values from the
long irradiations. The correction changed the Ti value by less than 5%.
The Ti data flagged as being at or below the detection limit was not
corrected for possible Cr interference.
</pre>
<pre><h2>Data management office notes on supplementary fields - aerosols data</h2>
<b>lat, lon</b>
A nominal ship location is given in lat/lon. The location is the noon
position most near the middle of the sampling period, e.g. for a sample
which was pumped intermittently from Jan. 3 - 5, the location is given for
noon, Jan. 4. Intended as an aid to understanding, not a discrete location.
<b>date_begin, date_end</b>
We have included the start and stop day for each sample which we
believe constrains the sample time about as well as is useful for these
data. We also have pump volume and thus a mean concentration of dust
per cubic meter of air for that time frame. The actual number of hours
sampled during a time block (number of days) is complicated to
present. Pumps were turned on and off repetitively depending upon ship
maneuvers and relative wind direction (to prevent ship exhaust
contamination). Also, the total number of hours the pumps were on is a
less useful measure than pump volume, because of the variability in
pump efficiency due to changing barometric pressures. An hours worth of
pumping does not always yield the same volume of air.
</pre>
Funding provided by National Aeronautics & Space Administration (NASA) Award Number: unknown Arabian Sea NASA
completed
Dr Neil Tindale
Texas A&M University
USA
n.tindale@bom.gov.au
pointOfContact
asNeeded
Dataset Version: June 30, 1997
Unknown
cruise
date_begin
date_end
yrday
lat_n
lon_n
vol_pump
As
Br
Ce
Co
Cr
Cs
Eu
Fe
Gd
Hf
Hg
La
Lu
Nd
Rb
Sb
Sc
Se
Sm
Sr
Ta
Tb
Th
Tm
U
Yb
Zn
dust
As_err
As_dl
Br_err
Br_dl
Ce_err
Ce_dl
Co_err
Co_dl
Cr_err
Cr_dl
Cs_err
Cs_dl
Eu_err
Eu_dl
Fe_err
Fe_dl
Gd_err
Gd_dl
Hf_err
Hf_dl
Hg_err
Hg_dl
La_err
La_dl
Lu_err
Lu_dl
Nd_err
Nd_dl
Rb_err
Rb_dl
Sb_err
Sb_dl
Sc_err
Sc_dl
Se_err
Se_dl
Sm_err
Sm_dl
Sr_err
Sr_dl
Ta_err
Ta_dl
Tb_err
Tb_dl
Th_err
Th_dl
Tm_err
Tm_dl
U_err
U_dl
Yb_err
Yb_dl
Zn_err
Zn_dl
Pump Air Sampler
theme
None, User defined
No BCO-DMO term
arsenic
featureType
BCO-DMO Standard Parameters
Pump Air Sampler
instrument
BCO-DMO Standard Instruments
TT043
TT044
TT045
TT048
TT049
TT050
TT053
TT054
service
Deployment Activity
U.S. JGOFS Arabian Sea
place
Locations
otherRestrictions
otherRestrictions
Access Constraints: none. Use Constraints: Please follow guidelines at: http://www.bco-dmo.org/terms-use Distribution liability: Under no circumstances shall BCO-DMO be liable for any direct, incidental, special, consequential, indirect, or punitive damages that result from the use of, or the inability to use, the materials in this data submission. If you are dissatisfied with any materials in this data submission your sole and exclusive remedy is to discontinue use.
U.S. Joint Global Ocean Flux Study
http://usjgofs.whoi.edu/
U.S. Joint Global Ocean Flux Study
The United States Joint Global Ocean Flux Study was a national component of international JGOFS and an integral part of global climate change research.
The U.S. launched the Joint Global Ocean Flux Study (JGOFS) in the late 1980s to study the ocean carbon cycle. An ambitious goal was set to understand the controls on the concentrations and fluxes of carbon and associated nutrients in the ocean. A new field of ocean biogeochemistry emerged with an emphasis on quality measurements of carbon system parameters and interdisciplinary field studies of the biological, chemical and physical process which control the ocean carbon cycle. As we studied ocean biogeochemistry, we learned that our simple views of carbon uptake and transport were severely limited, and a new "wave" of ocean science was born. U.S. JGOFS has been supported primarily by the U.S. National Science Foundation in collaboration with the National Oceanic and Atmospheric Administration, the National Aeronautics and Space Administration, the Department of Energy and the Office of Naval Research. U.S. JGOFS, ended in 2005 with the conclusion of the Synthesis and Modeling Project (SMP).
U.S. JGOFS
largerWorkCitation
program
U.S. JGOFS Arabian Sea
http://usjgofs.whoi.edu/research/arabian.html
U.S. JGOFS Arabian Sea
<p>The U.S. Arabian Sea Expedition which began in September 1994 and ended in January 1996, had three major components: a U.S. JGOFS Process Study, supported by the National Science Foundation (NSF); Forced Upper Ocean Dynamics, an Office of Naval Research (ONR) initiative; and shipboard and aircraft measurements supported by the National Aeronautics and Space Administration (NASA). The Expedition consisted of 17 cruises aboard the R/V Thomas Thompson, year-long moored deployments of five instrumented surface buoys and five sediment-trap arrays, aircraft overflights and satellite observations. Of the seventeen ship cruises, six were allocated to repeat process survey cruises, four to SeaSoar mapping cruises, six to mooring and benthic work, and a single calibration cruise which was essentially conducted in transit to the Arabian Sea.</p>
Arabian Sea
largerWorkCitation
project
eng; USA
oceans
U.S. JGOFS Arabian Sea
1997-06-30
Arabian Sea
0
BCO-DMO catalogue of parameters from Aerosols, long irradiation neutron activation analysis from R/V Thomas G. Thompson cruises in the Arabian Sea in 1995 (U.S. JGOFS Arabian Sea project)
Biological and Chemical Oceanography Data Management Office (BCO-DMO)
Unavailable
508-289-2009
WHOI MS#36
Woods Hole
MA
02543
USA
info@bco-dmo.org
http://www.bco-dmo.org
Monday - Friday 8:00am - 5:00pm
For questions regarding this resource, please contact BCO-DMO via the email address provided.
pointOfContact
http://lod.bco-dmo.org/id/dataset-parameter/10336.rdf
Name: cruise
Units: unknown
Description: <p>Arabian Sea, Thomas Thompson cruise identifier</p>
http://lod.bco-dmo.org/id/dataset-parameter/10337.rdf
Name: date_begin
Units: as YYYYMMDD
Description: <p>date sampling pump turned on for a given sample,</p>
http://lod.bco-dmo.org/id/dataset-parameter/10338.rdf
Name: date_end
Units: unknown
Description: <p>date sampling pump turned off for a given sample, as YYYYMMDD</p>
http://lod.bco-dmo.org/id/dataset-parameter/10339.rdf
Name: yrday
Units: unknown
Description: <p>day of year, 1995</p>
http://lod.bco-dmo.org/id/dataset-parameter/10340.rdf
Name: lat_n
Units: decimal degrees
Description: <p>Nominal latitude (minus indicates South)</p>
http://lod.bco-dmo.org/id/dataset-parameter/10341.rdf
Name: lon_n
Units: decimal degrees
Description: <p>Nominal longitude (minus indicates West)</p>
http://lod.bco-dmo.org/id/dataset-parameter/10342.rdf
Name: vol_pump
Units: cubic meters
Description: <p>volume of air pumped to accumulate sample</p>
http://lod.bco-dmo.org/id/dataset-parameter/10343.rdf
Name: As
Units: ug/m^3
Description: <p>concentration of arsenic</p>
http://lod.bco-dmo.org/id/dataset-parameter/10344.rdf
Name: Br
Units: ug/m^3
Description: <p>concentration of bromine</p>
http://lod.bco-dmo.org/id/dataset-parameter/10345.rdf
Name: Ce
Units: ug/m^3
Description: <p>concentration of cerium</p>
http://lod.bco-dmo.org/id/dataset-parameter/10346.rdf
Name: Co
Units: ug/m^3
Description: <p>concentration of cobolt</p>
http://lod.bco-dmo.org/id/dataset-parameter/10347.rdf
Name: Cr
Units: ug/m^3
Description: <p>concentration of chromium</p>
http://lod.bco-dmo.org/id/dataset-parameter/10348.rdf
Name: Cs
Units: ug/m^3
Description: <p>concentration of cesium</p>
http://lod.bco-dmo.org/id/dataset-parameter/10349.rdf
Name: Eu
Units: ug/m^3
Description: <p>concentration of europium</p>
http://lod.bco-dmo.org/id/dataset-parameter/10350.rdf
Name: Fe
Units: ug/m^3
Description: <p>concentration of iron</p>
http://lod.bco-dmo.org/id/dataset-parameter/10351.rdf
Name: Gd
Units: ug/m^3
Description: <p>concentration of gadolinium</p>
http://lod.bco-dmo.org/id/dataset-parameter/10352.rdf
Name: Hf
Units: ug/m^3
Description: <p>concentration of hafnium</p>
http://lod.bco-dmo.org/id/dataset-parameter/10353.rdf
Name: Hg
Units: ug/m^3
Description: <p>concentration of mercury</p>
http://lod.bco-dmo.org/id/dataset-parameter/10354.rdf
Name: La
Units: ug/m^3
Description: <p>concentration of lanthanum</p>
http://lod.bco-dmo.org/id/dataset-parameter/10355.rdf
Name: Lu
Units: ug/m^3
Description: <p>concentration of lutetium</p>
http://lod.bco-dmo.org/id/dataset-parameter/10356.rdf
Name: Nd
Units: ug/m^3
Description: <p>concentration of neodymium</p>
http://lod.bco-dmo.org/id/dataset-parameter/10357.rdf
Name: Rb
Units: ug/m^3
Description: <p>concentration of rubidium</p>
http://lod.bco-dmo.org/id/dataset-parameter/10358.rdf
Name: Sb
Units: ug/m^3
Description: <p>concentration of antimony</p>
http://lod.bco-dmo.org/id/dataset-parameter/10359.rdf
Name: Sc
Units: ug/m^3
Description: <p>concentration of scandium</p>
http://lod.bco-dmo.org/id/dataset-parameter/10360.rdf
Name: Se
Units: ug/m^3
Description: <p>concentration of selenium</p>
http://lod.bco-dmo.org/id/dataset-parameter/10361.rdf
Name: Sm
Units: ug/m^3
Description: <p>concentration of samarium</p>
http://lod.bco-dmo.org/id/dataset-parameter/10362.rdf
Name: Sr
Units: ug/m^3
Description: <p>concentration of strontium</p>
http://lod.bco-dmo.org/id/dataset-parameter/10363.rdf
Name: Ta
Units: ug/m^3
Description: <p>concentration of tantalum</p>
http://lod.bco-dmo.org/id/dataset-parameter/10364.rdf
Name: Tb
Units: ug/m^3
Description: <p>concentration of terbium</p>
http://lod.bco-dmo.org/id/dataset-parameter/10365.rdf
Name: Th
Units: ug/m^3
Description: <p>concentration of thorium</p>
http://lod.bco-dmo.org/id/dataset-parameter/10366.rdf
Name: Tm
Units: ug/m^3
Description: <p>concentration of thulium</p>
http://lod.bco-dmo.org/id/dataset-parameter/10367.rdf
Name: U
Units: ug/m^3
Description: <p>concentration of uranium</p>
http://lod.bco-dmo.org/id/dataset-parameter/10368.rdf
Name: Yb
Units: ug/m^3
Description: <p>concentration of ytterbium</p>
http://lod.bco-dmo.org/id/dataset-parameter/10369.rdf
Name: Zn
Units: ug/m^3
Description: <p>concentration of zinc</p>
http://lod.bco-dmo.org/id/dataset-parameter/10370.rdf
Name: dust
Units: ug/m^3
Description: <p>total sample mass estimated by assuming the Al content represented 8 percent, based on an 8% crustal average for Al</p>
http://lod.bco-dmo.org/id/dataset-parameter/13979.rdf
Name: As_err
Units: ug/m^3
Description: <p>Arsenic combined sampling and analytical error</p>
http://lod.bco-dmo.org/id/dataset-parameter/13980.rdf
Name: As_dl
Units: unknown
Description: <p>Arsenic detection level:</p>
<p>a '1' indicates that while a peak was detected,<br />
the isotope sample was below the level of detection relative<br />
to background "noise". The element concentration reported<br />
therefore represents the amount of the isotope which would<br />
have had to have been present for it to have been detected.<br />
a '0' indicates no flag - concentration is as measured.</p>
http://lod.bco-dmo.org/id/dataset-parameter/13989.rdf
Name: Br_err
Units: ug/m^3
Description: <p>Bromine combined sampling and analytical error</p>
http://lod.bco-dmo.org/id/dataset-parameter/13990.rdf
Name: Br_dl
Units: unknown
Description: <p>Bromine detection level:<br />
a '1' indicates that while a peak was detected,<br />
the isotope sample was below the level of detection relative<br />
to background "noise". The element concentration reported<br />
therefore represents the amount of the isotope which would<br />
have had to have been present for it to have been detected.<br />
a '0' indicates no flag - concentration is as measured.</p>
http://lod.bco-dmo.org/id/dataset-parameter/13991.rdf
Name: Ce_err
Units: ug/m^3
Description: <p>Cerium combined sampling and analytical error</p>
http://lod.bco-dmo.org/id/dataset-parameter/13992.rdf
Name: Ce_dl
Units: unknown
Description: <p>Cerium detection level:<br />
a '1' indicates that while a peak was detected,<br />
the isotope sample was below the level of detection relative<br />
to background "noise". The element concentration reported<br />
therefore represents the amount of the isotope which would<br />
have had to have been present for it to have been detected.<br />
a '0' indicates no flag - concentration is as measured.</p>
http://lod.bco-dmo.org/id/dataset-parameter/13993.rdf
Name: Co_err
Units: ug/m^3
Description: <p>Cobalt combined sampling and analytical error</p>
http://lod.bco-dmo.org/id/dataset-parameter/13994.rdf
Name: Co_dl
Units: unknown
Description: <p>Cobalt detection level:<br />
a '1' indicates that while a peak was detected,<br />
the isotope sample was below the level of detection relative<br />
to background "noise". The element concentration reported<br />
therefore represents the amount of the isotope which would<br />
have had to have been present for it to have been detected.<br />
a '0' indicates no flag - concentration is as measured.</p>
http://lod.bco-dmo.org/id/dataset-parameter/13995.rdf
Name: Cr_err
Units: ug/m^3
Description: <p>Chromium combined sampling and analytical error</p>
http://lod.bco-dmo.org/id/dataset-parameter/13996.rdf
Name: Cr_dl
Units: unknown
Description: <p>Chromium detection level:<br />
a '1' indicates that while a peak was detected,<br />
the isotope sample was below the level of detection relative<br />
to background "noise". The element concentration reported<br />
therefore represents the amount of the isotope which would<br />
have had to have been present for it to have been detected.<br />
a '0' indicates no flag - concentration is as measured.</p>
http://lod.bco-dmo.org/id/dataset-parameter/13997.rdf
Name: Cs_err
Units: ug/m^3
Description: <p>Cesium combined sampling and analytical error</p>
http://lod.bco-dmo.org/id/dataset-parameter/13998.rdf
Name: Cs_dl
Units: unknown
Description: <p>Cesium detection level:<br />
a '1' indicates that while a peak was detected,<br />
the isotope sample was below the level of detection relative<br />
to background "noise". The element concentration reported<br />
therefore represents the amount of the isotope which would<br />
have had to have been present for it to have been detected.<br />
a '0' indicates no flag - concentration is as measured.</p>
http://lod.bco-dmo.org/id/dataset-parameter/13999.rdf
Name: Eu_err
Units: ug/m^3
Description: <p>Europium combined sampling and analytical error</p>
http://lod.bco-dmo.org/id/dataset-parameter/14000.rdf
Name: Eu_dl
Units: unknown
Description: <p>Europium detection level:<br />
a '1' indicates that while a peak was detected,<br />
the isotope sample was below the level of detection relative<br />
to background "noise". The element concentration reported<br />
therefore represents the amount of the isotope which would<br />
have had to have been present for it to have been detected.<br />
a '0' indicates no flag - concentration is as measured.</p>
http://lod.bco-dmo.org/id/dataset-parameter/14001.rdf
Name: Fe_err
Units: ug/m^3
Description: <p>Iron combined sampling and analytical error</p>
http://lod.bco-dmo.org/id/dataset-parameter/14002.rdf
Name: Fe_dl
Units: unknown
Description: <p>Iron detection level:<br />
a '1' indicates that while a peak was detected,<br />
the isotope sample was below the level of detection relative<br />
to background "noise". The element concentration reported<br />
therefore represents the amount of the isotope which would<br />
have had to have been present for it to have been detected.<br />
a '0' indicates no flag - concentration is as measured.</p>
http://lod.bco-dmo.org/id/dataset-parameter/14003.rdf
Name: Gd_err
Units: ug/m^3
Description: <p>Gadolinium combined sampling and analytical error</p>
http://lod.bco-dmo.org/id/dataset-parameter/14004.rdf
Name: Gd_dl
Units: unknown
Description: <p>Gadolinium detection level:<br />
a '1' indicates that while a peak was detected,<br />
the isotope sample was below the level of detection relative<br />
to background "noise". The element concentration reported<br />
therefore represents the amount of the isotope which would<br />
have had to have been present for it to have been detected.<br />
a '0' indicates no flag - concentration is as measured.</p>
http://lod.bco-dmo.org/id/dataset-parameter/14005.rdf
Name: Hf_err
Units: ug/m^3
Description: <p>Hafnium combined sampling and analytical error</p>
http://lod.bco-dmo.org/id/dataset-parameter/14006.rdf
Name: Hf_dl
Units: unknown
Description: <p>Hafnium detection level:<br />
a '1' indicates that while a peak was detected,<br />
the isotope sample was below the level of detection relative<br />
to background "noise". The element concentration reported<br />
therefore represents the amount of the isotope which would<br />
have had to have been present for it to have been detected.<br />
a '0' indicates no flag - concentration is as measured.</p>
http://lod.bco-dmo.org/id/dataset-parameter/14012.rdf
Name: Hg_err
Units: ug/m^3
Description: <p>Mercury combined sampling and analytical error</p>
http://lod.bco-dmo.org/id/dataset-parameter/14013.rdf
Name: Hg_dl
Units: unknown
Description: <p>Mercury detection level:<br />
a '1' indicates that while a peak was detected,<br />
the isotope sample was below the level of detection relative<br />
to background "noise". The element concentration reported<br />
therefore represents the amount of the isotope which would<br />
have had to have been present for it to have been detected.<br />
a '0' indicates no flag - concentration is as measured.</p>
http://lod.bco-dmo.org/id/dataset-parameter/14014.rdf
Name: La_err
Units: ug/m^3
Description: <p>Lanthanum combined sampling and analytical error</p>
http://lod.bco-dmo.org/id/dataset-parameter/14015.rdf
Name: La_dl
Units: unknown
Description: <p>Lanthanum detection level:<br />
a '1' indicates that while a peak was detected,<br />
the isotope sample was below the level of detection relative<br />
to background "noise". The element concentration reported<br />
therefore represents the amount of the isotope which would<br />
have had to have been present for it to have been detected.<br />
a '0' indicates no flag - concentration is as measured.</p>
http://lod.bco-dmo.org/id/dataset-parameter/14016.rdf
Name: Lu_err
Units: ug/m^3
Description: <p>Lutetium combined sampling and analytical error</p>
http://lod.bco-dmo.org/id/dataset-parameter/14017.rdf
Name: Lu_dl
Units: unknown
Description: <p>Lutetium detection level:<br />
a '1' indicates that while a peak was detected,<br />
the isotope sample was below the level of detection relative<br />
to background "noise". The element concentration reported<br />
therefore represents the amount of the isotope which would<br />
have had to have been present for it to have been detected.<br />
a '0' indicates no flag - concentration is as measured.</p>
http://lod.bco-dmo.org/id/dataset-parameter/14018.rdf
Name: Nd_err
Units: ug/m^3
Description: <p>Neodymium combined sampling and analytical error</p>
http://lod.bco-dmo.org/id/dataset-parameter/14019.rdf
Name: Nd_dl
Units: unknown
Description: <p>Neodymium detection level:<br />
a '1' indicates that while a peak was detected,<br />
the isotope sample was below the level of detection relative<br />
to background "noise". The element concentration reported<br />
therefore represents the amount of the isotope which would<br />
have had to have been present for it to have been detected.<br />
a '0' indicates no flag - concentration is as measured.</p>
http://lod.bco-dmo.org/id/dataset-parameter/14020.rdf
Name: Rb_err
Units: ug/m^3
Description: <p>Rubidium combined sampling and analytical error</p>
http://lod.bco-dmo.org/id/dataset-parameter/14021.rdf
Name: Rb_dl
Units: unknown
Description: <p>Rubidium detection level:<br />
a '1' indicates that while a peak was detected,<br />
the isotope sample was below the level of detection relative<br />
to background "noise". The element concentration reported<br />
therefore represents the amount of the isotope which would<br />
have had to have been present for it to have been detected.<br />
a '0' indicates no flag - concentration is as measured.</p>
http://lod.bco-dmo.org/id/dataset-parameter/14022.rdf
Name: Sb_err
Units: ug/m^3
Description: <p>Antimony combined sampling and analytical error</p>
http://lod.bco-dmo.org/id/dataset-parameter/14023.rdf
Name: Sb_dl
Units: unknown
Description: <p>Antimony detection level:<br />
a '1' indicates that while a peak was detected,<br />
the isotope sample was below the level of detection relative<br />
to background "noise". The element concentration reported<br />
therefore represents the amount of the isotope which would<br />
have had to have been present for it to have been detected.<br />
a '0' indicates no flag - concentration is as measured.</p>
http://lod.bco-dmo.org/id/dataset-parameter/14024.rdf
Name: Sc_err
Units: ug/m^3
Description: <p>Scandium combined sampling and analytical error</p>
http://lod.bco-dmo.org/id/dataset-parameter/14025.rdf
Name: Sc_dl
Units: unknown
Description: <p>Scandium detection level:<br />
a '1' indicates that while a peak was detected,<br />
the isotope sample was below the level of detection relative<br />
to background "noise". The element concentration reported<br />
therefore represents the amount of the isotope which would<br />
have had to have been present for it to have been detected.<br />
a '0' indicates no flag - concentration is as measured.</p>
http://lod.bco-dmo.org/id/dataset-parameter/14026.rdf
Name: Se_err
Units: ug/m^3
Description: <p>Selenium combined sampling and analytical error</p>
http://lod.bco-dmo.org/id/dataset-parameter/14027.rdf
Name: Se_dl
Units: unknown
Description: <p>Selenium detection level:<br />
a '1' indicates that while a peak was detected,<br />
the isotope sample was below the level of detection relative<br />
to background "noise". The element concentration reported<br />
therefore represents the amount of the isotope which would<br />
have had to have been present for it to have been detected.<br />
a '0' indicates no flag - concentration is as measured.</p>
http://lod.bco-dmo.org/id/dataset-parameter/14028.rdf
Name: Sm_err
Units: ug/m^3
Description: <p>Samarium combined sampling and analytical error</p>
http://lod.bco-dmo.org/id/dataset-parameter/14029.rdf
Name: Sm_dl
Units: unknown
Description: <p>Samarium detection level:<br />
a '1' indicates that while a peak was detected,<br />
the isotope sample was below the level of detection relative<br />
to background "noise". The element concentration reported<br />
therefore represents the amount of the isotope which would<br />
have had to have been present for it to have been detected.<br />
a '0' indicates no flag - concentration is as measured.</p>
http://lod.bco-dmo.org/id/dataset-parameter/14030.rdf
Name: Sr_err
Units: ug/m^3
Description: <p>Strontium combined sampling and analytical error</p>
http://lod.bco-dmo.org/id/dataset-parameter/14031.rdf
Name: Sr_dl
Units: unknown
Description: <p>Strontium detection level:<br />
a '1' indicates that while a peak was detected,<br />
the isotope sample was below the level of detection relative<br />
to background "noise". The element concentration reported<br />
therefore represents the amount of the isotope which would<br />
have had to have been present for it to have been detected.<br />
a '0' indicates no flag - concentration is as measured.</p>
http://lod.bco-dmo.org/id/dataset-parameter/14032.rdf
Name: Ta_err
Units: ug/m^3
Description: <p>Tantalum combined sampling and analytical error</p>
http://lod.bco-dmo.org/id/dataset-parameter/14033.rdf
Name: Ta_dl
Units: unknown
Description: <p>Tantalum detection level:<br />
a '1' indicates that while a peak was detected,<br />
the isotope sample was below the level of detection relative<br />
to background "noise". The element concentration reported<br />
therefore represents the amount of the isotope which would<br />
have had to have been present for it to have been detected.<br />
a '0' indicates no flag - concentration is as measured.</p>
http://lod.bco-dmo.org/id/dataset-parameter/14034.rdf
Name: Tb_err
Units: ug/m^3
Description: <p>Terbium combined sampling and analytical error</p>
http://lod.bco-dmo.org/id/dataset-parameter/14035.rdf
Name: Tb_dl
Units: unknown
Description: <p>Terbium detection level:<br />
a '1' indicates that while a peak was detected,<br />
the isotope sample was below the level of detection relative<br />
to background "noise". The element concentration reported<br />
therefore represents the amount of the isotope which would<br />
have had to have been present for it to have been detected.<br />
a '0' indicates no flag - concentration is as measured.</p>
http://lod.bco-dmo.org/id/dataset-parameter/14036.rdf
Name: Th_err
Units: ug/m^3
Description: <p>Thorium combined sampling and analytical error</p>
http://lod.bco-dmo.org/id/dataset-parameter/14037.rdf
Name: Th_dl
Units: unknown
Description: <p>Thorium detection level:<br />
a '1' indicates that while a peak was detected,<br />
the isotope sample was below the level of detection relative<br />
to background "noise". The element concentration reported<br />
therefore represents the amount of the isotope which would<br />
have had to have been present for it to have been detected.<br />
a '0' indicates no flag - concentration is as measured.</p>
http://lod.bco-dmo.org/id/dataset-parameter/14038.rdf
Name: Tm_err
Units: ug/m^3
Description: <p>Thulium combined sampling and analytical error</p>
http://lod.bco-dmo.org/id/dataset-parameter/14039.rdf
Name: Tm_dl
Units: unknown
Description: <p>Thulium detection level:<br />
a '1' indicates that while a peak was detected,<br />
the isotope sample was below the level of detection relative<br />
to background "noise". The element concentration reported<br />
therefore represents the amount of the isotope which would<br />
have had to have been present for it to have been detected.<br />
a '0' indicates no flag - concentration is as measured.</p>
http://lod.bco-dmo.org/id/dataset-parameter/14040.rdf
Name: U_err
Units: ug/m^3
Description: <p>Uranium combined sampling and analytical error</p>
http://lod.bco-dmo.org/id/dataset-parameter/14041.rdf
Name: U_dl
Units: unknown
Description: <p>Uranium detection level:<br />
a '1' indicates that while a peak was detected,<br />
the isotope sample was below the level of detection relative<br />
to background "noise". The element concentration reported<br />
therefore represents the amount of the isotope which would<br />
have had to have been present for it to have been detected.<br />
a '0' indicates no flag - concentration is as measured.</p>
http://lod.bco-dmo.org/id/dataset-parameter/14042.rdf
Name: Yb_err
Units: ug/m^3
Description: <p>Ytterbium combined sampling and analytical error</p>
http://lod.bco-dmo.org/id/dataset-parameter/14043.rdf
Name: Yb_dl
Units: unknown
Description: <p>Ytterbium detection level:<br />
a '1' indicates that while a peak was detected,<br />
the isotope sample was below the level of detection relative<br />
to background "noise". The element concentration reported<br />
therefore represents the amount of the isotope which would<br />
have had to have been present for it to have been detected.<br />
a '0' indicates no flag - concentration is as measured.</p>
http://lod.bco-dmo.org/id/dataset-parameter/14044.rdf
Name: Zn_err
Units: ug/m^3
Description: <p>Zinc combined sampling and analytical error</p>
http://lod.bco-dmo.org/id/dataset-parameter/14045.rdf
Name: Zn_dl
Units: unknown
Description: <p>Zinc detection level:<br />
a '1' indicates that while a peak was detected,<br />
the isotope sample was below the level of detection relative<br />
to background "noise". The element concentration reported<br />
therefore represents the amount of the isotope which would<br />
have had to have been present for it to have been detected.<br />
a '0' indicates no flag - concentration is as measured.</p>
GB/NERC/BODC > British Oceanographic Data Centre, Natural Environment Research Council, United Kingdom
Biological and Chemical Oceanography Data Management Office (BCO-DMO)
Unavailable
508-289-2009
WHOI MS#36
Woods Hole
MA
02543
USA
info@bco-dmo.org
http://www.bco-dmo.org
Monday - Friday 8:00am - 5:00pm
For questions regarding this resource, please contact BCO-DMO via the email address provided.
pointOfContact
16750
https://datadocs.bco-dmo.org/file/1VVMolxtnE8NWG/aerosols_long.csv
aerosols_long.csv
Primary data file for dataset ID 2591
download
https://osprey.bco-dmo.org/dataset/2591/data/download
download
onLine
dataset
<h2>Dr. Neil Tindale, Texas A & M Univ.
JGOFS/Arabian Sea
Aerosols, short and long irradiation neutron activation analysis
</h2>
<p><b>JGOFS Arabian Sea Aerosol Data</b> <br>
This mineral aerosol concentration data set is from samples collected
during several cruises on the R/V Thomas Thompson during the JGOFS
Arabian Sea field program. </p>
<strong>Air Sampling Pump System</strong><br>
<p>The air sampling pumps, controller, electronics, and a clean bench were mounted in a 6-m shipping container located on the foredeck's container storage rack. The air sampler was a HiVol system loaded with a single unwashed Whatman 41 filter and with a flow rate of about 1.2-1.4 m3 min-1. Air flow rates were measured daily using an orifice-type flow tube that had been calibrated to a National Institute of Standards and Technology (NIST) certified EG&G FT32 turbine flowmeter. Air volume errors were between 5 and 10%; the total combined air volume and analytical error was about 10%. The experimental equipment was similar to that described in Schwartze et al. (1988) and used on previous atmospheric-oceanographic programs (Betzer et al., 1988).</p>
<p>References: <br>
Betzer, P.R., Carder, K.L., Duce, R.A., Merrill, J.T., Tindale, N.W., Uematsu, M., Costello, D., Young, R.,
Feely, R.A., Breland, J.A., Bernstein, R., Greco, T., 1988. A pulse of Asian dust to the central North Pacific: long-range transport of giant mineral aerosols. Nature 336, pp. 568-571. <br><br>
Schwartze, G., Boldi, R., Wasco, T., Duce, R., 1988. PASS: a portable atmospheric sampling system for chemical studies in the marine troposphere. Journal of Atmospheric and Oceanic Technology 5, pp. 561-570.
</p>
<p>The data set includes the sampling period
for each sample; the "Day of Year", yrday, number for the start of the
sampling period for each sample; and the concentration of different
elements for each sample, in micrograms per cubic meter. For the
sampling period, "nd" is used as a filler to indicate "no data" gaps in
the data array. The dust values are estimated using aluminum
concentrations determined by neutron activation analysis. While most
samples cover a multi-day period, we only have data for about 150
days. We didn't participate in all of the cruises and, on the cruises
where samples were collected, often sampling conditions were less than
ideal (bad weather, ship maneuvering, relative wind from astern etc.).
A few samples that were collected showed obvious contamination from
local sources, presumably from material from the R/V Thompson or from
nearby fishing boats, and these samples were discarded and are not
included in the data set. While the sampling period represents the
period during which sampling occurred, sampling was usually not
continuous. Sampling was frequently stopped, whenever sampling
conditions were no longer suitable. Thus the concentration value at
any particular date represents a time integrated sample which is
usually non-continuous.</p>
<pre>Cautionary comments:
1. There may be a problem with the estimate for the mineral "dust"
concentration. Most researchers use the average crustal ratio to estimate
mineral dust concentrations using elemental concentration data (Al, Fe,
etc.). Surface sand and silt samples that were collected in Oman in the
Wahibah Sands region have distinct, non-crustal ratios. If individual
aerosol samples are comprised of material from distinct sources, including
Oman, then it is not unreasonable for their elemental ratios to differ from
the published "average" crustal ratio that is used in most aerosol studies.
2. The amount of Ti in all the aerosol samples was small, despite there
being a reasonable amount of dust material in most samples. The peaks for
Cr and Ti overlap in the neutron activation short irradiation analysis and
if significant quantities of Cr are present, this will interfere with the Ti
analysis. With the exception of one sample, the Ti values are at or below
the detection limit. The sole value above the detection limit was corrected
for the Cr contribution using a correction based on the Cr values from the
long irradiations. The correction changed the Ti value by less than 5%.
The Ti data flagged as being at or below the detection limit was not
corrected for possible Cr interference.
</pre>
<pre><h2>Data management office notes on supplementary fields - aerosols data</h2>
<b>lat, lon</b>
A nominal ship location is given in lat/lon. The location is the noon
position most near the middle of the sampling period, e.g. for a sample
which was pumped intermittently from Jan. 3 - 5, the location is given for
noon, Jan. 4. Intended as an aid to understanding, not a discrete location.
<b>date_begin, date_end</b>
We have included the start and stop day for each sample which we
believe constrains the sample time about as well as is useful for these
data. We also have pump volume and thus a mean concentration of dust
per cubic meter of air for that time frame. The actual number of hours
sampled during a time block (number of days) is complicated to
present. Pumps were turned on and off repetitively depending upon ship
maneuvers and relative wind direction (to prevent ship exhaust
contamination). Also, the total number of hours the pumps were on is a
less useful measure than pump volume, because of the variability in
pump efficiency due to changing barometric pressures. An hours worth of
pumping does not always yield the same volume of air.
</pre>
from Cruise: TT043 <pre>
<strong>PI:</strong> Neil Tindale
<strong>of:</strong> Texas A&M University
<strong>dataset:</strong> Aerosols, long irradiation neutron activation analysis
<strong>dates:</strong> January 08, 1995 to December 18, 1995
<strong>locations:</strong> N: 22.8459 S: 09.8871 W: 57.2609 E: 68.2687
<strong>project:</strong> Arabian Sea
<strong>ship:</strong> Thomas Thompson
</pre>
<pre>
</pre>
<h3>Dr. Neil Tindale, Texas A & M Univ. JGOFS/Arabian Sea Aerosols, short and long irradiation neutron activation analysis</h3>
<p><strong>JGOFS Arabian Sea Aerosol Data</strong> This mineral aerosol concentration data set is from samples collected during several cruises on the R/V Thomas Thompson during the JGOFS Arabian Sea field program. The data set includes the sampling period for each sample; the "Day of Year", yrday, number for the start of the sampling period for each sample; and the concentration of different elements for each sample, in micrograms per cubic meter. For the sampling period, "nd" is used as a filler to indicate "no data" gaps in the data array. The dust values are estimated using aluminum concentrations determined by neutron activation analysis. While most samples cover a multi-day period, we only have data for about 150 days. We didn't participate in all of the cruises and, on the cruises where samples were collected, often sampling conditions were less than ideal (bad weather, ship maneuvering, relative wind from astern etc.). A few samples that were collected showed obvious contamination from local sources, presumably from material from the R/V Thompson or from nearby fishing boats, and these samples were discarded and are not included in the data set. While the sampling period represents the period during which sampling occurred, sampling was usually not continuous. Sampling was frequently stopped, whenever sampling conditions were no longer suitable. Thus the concentration value at any particular date represents a time integrated sample which is usually non-continuous. Cautionary comments: 1. There may be a problem with the estimate for the mineral "dust" concentration. Most researchers use the average crustal ratio to estimate mineral dust concentrations using elemental concentration data (Al, Fe, etc.). Surface sand and silt samples that were collected in Oman in the Wahibah Sands region have distinct, non-crustal ratios. If individual aerosol samples are comprised of material from distinct sources, including Oman, then it is not unreasonable for their elemental ratios to differ from the published "average" crustal ratio that is used in most aerosol studies. 2. The amount of Ti in all the aerosol samples was small, despite there being a reasonable amount of dust material in most samples. The peaks for Cr and Ti overlap in the neutron activation short irradiation analysis and if significant quantities of Cr are present, this will interfere with the Ti analysis. With the exception of one sample, the Ti values are at or below the detection limit. The sole value above the detection limit was corrected for the Cr contribution using a correction based on the Cr values from the long irradiations. The correction changed the Ti value by less than 5%. The Ti data flagged as being at or below the detection limit was not corrected for possible Cr interference.</p>
from Cruise: TT044 <pre>
<b>PI:</b> Neil Tindale
<b>of:</b> Texas A&M University
<b>dataset:</b> Aerosols, long irradiation neutron activation analysis
<b>dates:</b> January 08, 1995 to December 18, 1995
<b>locations:</b> N: 22.8459 S: 09.8871 W: 57.2609 E: 68.2687
<b>project:</b> Arabian Sea
<b>ship:</b> Thomas Thompson
</pre>
<pre>
<h2>Dr. Neil Tindale, Texas A & M Univ.
JGOFS/Arabian Sea
Aerosols, short and long irradiation neutron activation analysis
</h2>
<b>JGOFS Arabian Sea Aerosol Data</b>
This mineral aerosol concentration data set is from samples collected
during several cruises on the R/V Thomas Thompson during the JGOFS
Arabian Sea field program. The data set includes the sampling period
for each sample; the "Day of Year", yrday, number for the start of the
sampling period for each sample; and the concentration of different
elements for each sample, in micrograms per cubic meter. For the
sampling period, "nd" is used as a filler to indicate "no data" gaps in
the data array. The dust values are estimated using aluminum
concentrations determined by neutron activation analysis. While most
samples cover a multi-day period, we only have data for about 150
days. We didn't participate in all of the cruises and, on the cruises
where samples were collected, often sampling conditions were less than
ideal (bad weather, ship maneuvering, relative wind from astern etc.).
A few samples that were collected showed obvious contamination from
local sources, presumably from material from the R/V Thompson or from
nearby fishing boats, and these samples were discarded and are not
included in the data set. While the sampling period represents the
period during which sampling occurred, sampling was usually not
continuous. Sampling was frequently stopped, whenever sampling
conditions were no longer suitable. Thus the concentration value at
any particular date represents a time integrated sample which is
usually non-continuous.
Cautionary comments:
1. There may be a problem with the estimate for the mineral "dust"
concentration. Most researchers use the average crustal ratio to estimate
mineral dust concentrations using elemental concentration data (Al, Fe,
etc.). Surface sand and silt samples that were collected in Oman in the
Wahibah Sands region have distinct, non-crustal ratios. If individual
aerosol samples are comprised of material from distinct sources, including
Oman, then it is not unreasonable for their elemental ratios to differ from
the published "average" crustal ratio that is used in most aerosol studies.
2. The amount of Ti in all the aerosol samples was small, despite there
being a reasonable amount of dust material in most samples. The peaks for
Cr and Ti overlap in the neutron activation short irradiation analysis and
if significant quantities of Cr are present, this will interfere with the Ti
analysis. With the exception of one sample, the Ti values are at or below
the detection limit. The sole value above the detection limit was corrected
for the Cr contribution using a correction based on the Cr values from the
long irradiations. The correction changed the Ti value by less than 5%.
The Ti data flagged as being at or below the detection limit was not
corrected for possible Cr interference.
</pre>
<pre><h2>Data management office notes on supplementary fields - aerosols data</h2>
<b>lat, lon</b>
A nominal ship location is given in lat/lon. The location is the noon
position most near the middle of the sampling period, e.g. for a sample
which was pumped intermittently from Jan. 3 - 5, the location is given for
noon, Jan. 4. Intended as an aid to understanding, not a discrete location.
<b>date_begin, date_end</b>
We have included the start and stop day for each sample which we
believe constrains the sample time about as well as is useful for these
data. We also have pump volume and thus a mean concentration of dust
per cubic meter of air for that time frame. The actual number of hours
sampled during a time block (number of days) is complicated to
present. Pumps were turned on and off repetitively depending upon ship
maneuvers and relative wind direction (to prevent ship exhaust
contamination). Also, the total number of hours the pumps were on is a
less useful measure than pump volume, because of the variability in
pump efficiency due to changing barometric pressures. An hours worth of
pumping does not always yield the same volume of air.
</pre>
from Cruise: TT045 <pre>
<b>PI:</b> Neil Tindale
<b>of:</b> Texas A&M University
<b>dataset:</b> Aerosols, long irradiation neutron activation analysis
<b>dates:</b> January 08, 1995 to December 18, 1995
<b>locations:</b> N: 22.8459 S: 09.8871 W: 57.2609 E: 68.2687
<b>project:</b> Arabian Sea
<b>ship:</b> Thomas Thompson
</pre>
<pre>
<h2>Dr. Neil Tindale, Texas A & M Univ.
JGOFS/Arabian Sea
Aerosols, short and long irradiation neutron activation analysis
</h2>
<b>JGOFS Arabian Sea Aerosol Data</b>
This mineral aerosol concentration data set is from samples collected
during several cruises on the R/V Thomas Thompson during the JGOFS
Arabian Sea field program. The data set includes the sampling period
for each sample; the "Day of Year", yrday, number for the start of the
sampling period for each sample; and the concentration of different
elements for each sample, in micrograms per cubic meter. For the
sampling period, "nd" is used as a filler to indicate "no data" gaps in
the data array. The dust values are estimated using aluminum
concentrations determined by neutron activation analysis. While most
samples cover a multi-day period, we only have data for about 150
days. We didn't participate in all of the cruises and, on the cruises
where samples were collected, often sampling conditions were less than
ideal (bad weather, ship maneuvering, relative wind from astern etc.).
A few samples that were collected showed obvious contamination from
local sources, presumably from material from the R/V Thompson or from
nearby fishing boats, and these samples were discarded and are not
included in the data set. While the sampling period represents the
period during which sampling occurred, sampling was usually not
continuous. Sampling was frequently stopped, whenever sampling
conditions were no longer suitable. Thus the concentration value at
any particular date represents a time integrated sample which is
usually non-continuous.
Cautionary comments:
1. There may be a problem with the estimate for the mineral "dust"
concentration. Most researchers use the average crustal ratio to estimate
mineral dust concentrations using elemental concentration data (Al, Fe,
etc.). Surface sand and silt samples that were collected in Oman in the
Wahibah Sands region have distinct, non-crustal ratios. If individual
aerosol samples are comprised of material from distinct sources, including
Oman, then it is not unreasonable for their elemental ratios to differ from
the published "average" crustal ratio that is used in most aerosol studies.
2. The amount of Ti in all the aerosol samples was small, despite there
being a reasonable amount of dust material in most samples. The peaks for
Cr and Ti overlap in the neutron activation short irradiation analysis and
if significant quantities of Cr are present, this will interfere with the Ti
analysis. With the exception of one sample, the Ti values are at or below
the detection limit. The sole value above the detection limit was corrected
for the Cr contribution using a correction based on the Cr values from the
long irradiations. The correction changed the Ti value by less than 5%.
The Ti data flagged as being at or below the detection limit was not
corrected for possible Cr interference.
</pre>
<pre><h2>Data management office notes on supplementary fields - aerosols data</h2>
<b>lat, lon</b>
A nominal ship location is given in lat/lon. The location is the noon
position most near the middle of the sampling period, e.g. for a sample
which was pumped intermittently from Jan. 3 - 5, the location is given for
noon, Jan. 4. Intended as an aid to understanding, not a discrete location.
<b>date_begin, date_end</b>
We have included the start and stop day for each sample which we
believe constrains the sample time about as well as is useful for these
data. We also have pump volume and thus a mean concentration of dust
per cubic meter of air for that time frame. The actual number of hours
sampled during a time block (number of days) is complicated to
present. Pumps were turned on and off repetitively depending upon ship
maneuvers and relative wind direction (to prevent ship exhaust
contamination). Also, the total number of hours the pumps were on is a
less useful measure than pump volume, because of the variability in
pump efficiency due to changing barometric pressures. An hours worth of
pumping does not always yield the same volume of air.
</pre>
from Cruise: TT048 <pre>
<strong>PI:</strong> Neil Tindale
<strong>of:</strong> Texas A&M University
<strong>dataset:</strong> Aerosols, long irradiation neutron activation analysis
<strong>dates:</strong> January 08, 1995 to December 18, 1995
<strong>locations:</strong> N: 22.8459 S: 09.8871 W: 57.2609 E: 68.2687
<strong>project:</strong> Arabian Sea
<strong>ship:</strong> Thomas Thompson
</pre>
<pre>
</pre>
<h2>Dr. Neil Tindale, Texas A & M Univ. JGOFS/Arabian Sea Aerosols, short and long irradiation neutron activation analysis</h2>
<p><strong>JGOFS Arabian Sea Aerosol Data</strong> This mineral aerosol concentration data set is from samples collected during several cruises on the R/V Thomas Thompson during the JGOFS Arabian Sea field program. The data set includes the sampling period for each sample; the "Day of Year", yrday, number for the start of the sampling period for each sample; and the concentration of different elements for each sample, in micrograms per cubic meter. For the sampling period, "nd" is used as a filler to indicate "no data" gaps in the data array. The dust values are estimated using aluminum concentrations determined by neutron activation analysis. While most samples cover a multi-day period, we only have data for about 150 days. We didn't participate in all of the cruises and, on the cruises where samples were collected, often sampling conditions were less than ideal (bad weather, ship maneuvering, relative wind from astern etc.). A few samples that were collected showed obvious contamination from local sources, presumably from material from the R/V Thompson or from nearby fishing boats, and these samples were discarded and are not included in the data set. While the sampling period represents the period during which sampling occurred, sampling was usually not continuous. Sampling was frequently stopped, whenever sampling conditions were no longer suitable. Thus the concentration value at any particular date represents a time integrated sample which is usually non-continuous. Cautionary comments: 1. There may be a problem with the estimate for the mineral "dust" concentration. Most researchers use the average crustal ratio to estimate mineral dust concentrations using elemental concentration data (Al, Fe, etc.). Surface sand and silt samples that were collected in Oman in the Wahibah Sands region have distinct, non-crustal ratios. If individual aerosol samples are comprised of material from distinct sources, including Oman, then it is not unreasonable for their elemental ratios to differ from the published "average" crustal ratio that is used in most aerosol studies. 2. The amount of Ti in all the aerosol samples was small, despite there being a reasonable amount of dust material in most samples. The peaks for Cr and Ti overlap in the neutron activation short irradiation analysis and if significant quantities of Cr are present, this will interfere with the Ti analysis. With the exception of one sample, the Ti values are at or below the detection limit. The sole value above the detection limit was corrected for the Cr contribution using a correction based on the Cr values from the long irradiations. The correction changed the Ti value by less than 5%. The Ti data flagged as being at or below the detection limit was not corrected for possible Cr interference.</p>
<pre>
</pre>
<h2>Data management office notes on supplementary fields - aerosols data</h2>
<p><strong>lat, lon</strong> A nominal ship location is given in lat/lon. The location is the noon position most near the middle of the sampling period, e.g. for a sample which was pumped intermittently from Jan. 3 - 5, the location is given for noon, Jan. 4. Intended as an aid to understanding, not a discrete location. <strong>date_begin, date_end</strong> We have included the start and stop day for each sample which we believe constrains the sample time about as well as is useful for these data. We also have pump volume and thus a mean concentration of dust per cubic meter of air for that time frame. The actual number of hours sampled during a time block (number of days) is complicated to present. Pumps were turned on and off repetitively depending upon ship maneuvers and relative wind direction (to prevent ship exhaust contamination). Also, the total number of hours the pumps were on is a less useful measure than pump volume, because of the variability in pump efficiency due to changing barometric pressures. An hours worth of pumping does not always yield the same volume of air.</p>
from Cruise: TT049 <pre>
<b>PI:</b> Neil Tindale
<b>of:</b> Texas A&M University
<b>dataset:</b> Aerosols, long irradiation neutron activation analysis
<b>dates:</b> January 08, 1995 to December 18, 1995
<b>locations:</b> N: 22.8459 S: 09.8871 W: 57.2609 E: 68.2687
<b>project:</b> Arabian Sea
<b>ship:</b> Thomas Thompson
</pre>
<pre>
<h2>Dr. Neil Tindale, Texas A & M Univ.
JGOFS/Arabian Sea
Aerosols, short and long irradiation neutron activation analysis
</h2>
<b>JGOFS Arabian Sea Aerosol Data</b>
This mineral aerosol concentration data set is from samples collected
during several cruises on the R/V Thomas Thompson during the JGOFS
Arabian Sea field program. The data set includes the sampling period
for each sample; the "Day of Year", yrday, number for the start of the
sampling period for each sample; and the concentration of different
elements for each sample, in micrograms per cubic meter. For the
sampling period, "nd" is used as a filler to indicate "no data" gaps in
the data array. The dust values are estimated using aluminum
concentrations determined by neutron activation analysis. While most
samples cover a multi-day period, we only have data for about 150
days. We didn't participate in all of the cruises and, on the cruises
where samples were collected, often sampling conditions were less than
ideal (bad weather, ship maneuvering, relative wind from astern etc.).
A few samples that were collected showed obvious contamination from
local sources, presumably from material from the R/V Thompson or from
nearby fishing boats, and these samples were discarded and are not
included in the data set. While the sampling period represents the
period during which sampling occurred, sampling was usually not
continuous. Sampling was frequently stopped, whenever sampling
conditions were no longer suitable. Thus the concentration value at
any particular date represents a time integrated sample which is
usually non-continuous.
Cautionary comments:
1. There may be a problem with the estimate for the mineral "dust"
concentration. Most researchers use the average crustal ratio to estimate
mineral dust concentrations using elemental concentration data (Al, Fe,
etc.). Surface sand and silt samples that were collected in Oman in the
Wahibah Sands region have distinct, non-crustal ratios. If individual
aerosol samples are comprised of material from distinct sources, including
Oman, then it is not unreasonable for their elemental ratios to differ from
the published "average" crustal ratio that is used in most aerosol studies.
2. The amount of Ti in all the aerosol samples was small, despite there
being a reasonable amount of dust material in most samples. The peaks for
Cr and Ti overlap in the neutron activation short irradiation analysis and
if significant quantities of Cr are present, this will interfere with the Ti
analysis. With the exception of one sample, the Ti values are at or below
the detection limit. The sole value above the detection limit was corrected
for the Cr contribution using a correction based on the Cr values from the
long irradiations. The correction changed the Ti value by less than 5%.
The Ti data flagged as being at or below the detection limit was not
corrected for possible Cr interference.
</pre>
<pre><h2>Data management office notes on supplementary fields - aerosols data</h2>
<b>lat, lon</b>
A nominal ship location is given in lat/lon. The location is the noon
position most near the middle of the sampling period, e.g. for a sample
which was pumped intermittently from Jan. 3 - 5, the location is given for
noon, Jan. 4. Intended as an aid to understanding, not a discrete location.
<b>date_begin, date_end</b>
We have included the start and stop day for each sample which we
believe constrains the sample time about as well as is useful for these
data. We also have pump volume and thus a mean concentration of dust
per cubic meter of air for that time frame. The actual number of hours
sampled during a time block (number of days) is complicated to
present. Pumps were turned on and off repetitively depending upon ship
maneuvers and relative wind direction (to prevent ship exhaust
contamination). Also, the total number of hours the pumps were on is a
less useful measure than pump volume, because of the variability in
pump efficiency due to changing barometric pressures. An hours worth of
pumping does not always yield the same volume of air.
</pre>
from Cruise: TT050 <pre>
<b>PI:</b> Neil Tindale
<b>of:</b> Texas A&M University
<b>dataset:</b> Aerosols, long irradiation neutron activation analysis
<b>dates:</b> January 08, 1995 to December 18, 1995
<b>locations:</b> N: 22.8459 S: 09.8871 W: 57.2609 E: 68.2687
<b>project:</b> Arabian Sea
<b>ship:</b> Thomas Thompson
</pre>
<pre>
<h2>Dr. Neil Tindale, Texas A & M Univ.
JGOFS/Arabian Sea
Aerosols, short and long irradiation neutron activation analysis
</h2>
<b>JGOFS Arabian Sea Aerosol Data</b>
This mineral aerosol concentration data set is from samples collected
during several cruises on the R/V Thomas Thompson during the JGOFS
Arabian Sea field program. The data set includes the sampling period
for each sample; the "Day of Year", yrday, number for the start of the
sampling period for each sample; and the concentration of different
elements for each sample, in micrograms per cubic meter. For the
sampling period, "nd" is used as a filler to indicate "no data" gaps in
the data array. The dust values are estimated using aluminum
concentrations determined by neutron activation analysis. While most
samples cover a multi-day period, we only have data for about 150
days. We didn't participate in all of the cruises and, on the cruises
where samples were collected, often sampling conditions were less than
ideal (bad weather, ship maneuvering, relative wind from astern etc.).
A few samples that were collected showed obvious contamination from
local sources, presumably from material from the R/V Thompson or from
nearby fishing boats, and these samples were discarded and are not
included in the data set. While the sampling period represents the
period during which sampling occurred, sampling was usually not
continuous. Sampling was frequently stopped, whenever sampling
conditions were no longer suitable. Thus the concentration value at
any particular date represents a time integrated sample which is
usually non-continuous.
Cautionary comments:
1. There may be a problem with the estimate for the mineral "dust"
concentration. Most researchers use the average crustal ratio to estimate
mineral dust concentrations using elemental concentration data (Al, Fe,
etc.). Surface sand and silt samples that were collected in Oman in the
Wahibah Sands region have distinct, non-crustal ratios. If individual
aerosol samples are comprised of material from distinct sources, including
Oman, then it is not unreasonable for their elemental ratios to differ from
the published "average" crustal ratio that is used in most aerosol studies.
2. The amount of Ti in all the aerosol samples was small, despite there
being a reasonable amount of dust material in most samples. The peaks for
Cr and Ti overlap in the neutron activation short irradiation analysis and
if significant quantities of Cr are present, this will interfere with the Ti
analysis. With the exception of one sample, the Ti values are at or below
the detection limit. The sole value above the detection limit was corrected
for the Cr contribution using a correction based on the Cr values from the
long irradiations. The correction changed the Ti value by less than 5%.
The Ti data flagged as being at or below the detection limit was not
corrected for possible Cr interference.
</pre>
<pre><h2>Data management office notes on supplementary fields - aerosols data</h2>
<b>lat, lon</b>
A nominal ship location is given in lat/lon. The location is the noon
position most near the middle of the sampling period, e.g. for a sample
which was pumped intermittently from Jan. 3 - 5, the location is given for
noon, Jan. 4. Intended as an aid to understanding, not a discrete location.
<b>date_begin, date_end</b>
We have included the start and stop day for each sample which we
believe constrains the sample time about as well as is useful for these
data. We also have pump volume and thus a mean concentration of dust
per cubic meter of air for that time frame. The actual number of hours
sampled during a time block (number of days) is complicated to
present. Pumps were turned on and off repetitively depending upon ship
maneuvers and relative wind direction (to prevent ship exhaust
contamination). Also, the total number of hours the pumps were on is a
less useful measure than pump volume, because of the variability in
pump efficiency due to changing barometric pressures. An hours worth of
pumping does not always yield the same volume of air.
</pre>
from Cruise: TT053 <pre>
<b>PI:</b> Neil Tindale
<b>of:</b> Texas A&M University
<b>dataset:</b> Aerosols, long irradiation neutron activation analysis
<b>dates:</b> January 08, 1995 to December 18, 1995
<b>locations:</b> N: 22.8459 S: 09.8871 W: 57.2609 E: 68.2687
<b>project:</b> Arabian Sea
<b>ship:</b> Thomas Thompson
</pre>
<pre>
<h2>Dr. Neil Tindale, Texas A & M Univ.
JGOFS/Arabian Sea
Aerosols, short and long irradiation neutron activation analysis
</h2>
<b>JGOFS Arabian Sea Aerosol Data</b>
This mineral aerosol concentration data set is from samples collected
during several cruises on the R/V Thomas Thompson during the JGOFS
Arabian Sea field program. The data set includes the sampling period
for each sample; the "Day of Year", yrday, number for the start of the
sampling period for each sample; and the concentration of different
elements for each sample, in micrograms per cubic meter. For the
sampling period, "nd" is used as a filler to indicate "no data" gaps in
the data array. The dust values are estimated using aluminum
concentrations determined by neutron activation analysis. While most
samples cover a multi-day period, we only have data for about 150
days. We didn't participate in all of the cruises and, on the cruises
where samples were collected, often sampling conditions were less than
ideal (bad weather, ship maneuvering, relative wind from astern etc.).
A few samples that were collected showed obvious contamination from
local sources, presumably from material from the R/V Thompson or from
nearby fishing boats, and these samples were discarded and are not
included in the data set. While the sampling period represents the
period during which sampling occurred, sampling was usually not
continuous. Sampling was frequently stopped, whenever sampling
conditions were no longer suitable. Thus the concentration value at
any particular date represents a time integrated sample which is
usually non-continuous.
Cautionary comments:
1. There may be a problem with the estimate for the mineral "dust"
concentration. Most researchers use the average crustal ratio to estimate
mineral dust concentrations using elemental concentration data (Al, Fe,
etc.). Surface sand and silt samples that were collected in Oman in the
Wahibah Sands region have distinct, non-crustal ratios. If individual
aerosol samples are comprised of material from distinct sources, including
Oman, then it is not unreasonable for their elemental ratios to differ from
the published "average" crustal ratio that is used in most aerosol studies.
2. The amount of Ti in all the aerosol samples was small, despite there
being a reasonable amount of dust material in most samples. The peaks for
Cr and Ti overlap in the neutron activation short irradiation analysis and
if significant quantities of Cr are present, this will interfere with the Ti
analysis. With the exception of one sample, the Ti values are at or below
the detection limit. The sole value above the detection limit was corrected
for the Cr contribution using a correction based on the Cr values from the
long irradiations. The correction changed the Ti value by less than 5%.
The Ti data flagged as being at or below the detection limit was not
corrected for possible Cr interference.
</pre>
<pre><h2>Data management office notes on supplementary fields - aerosols data</h2>
<b>lat, lon</b>
A nominal ship location is given in lat/lon. The location is the noon
position most near the middle of the sampling period, e.g. for a sample
which was pumped intermittently from Jan. 3 - 5, the location is given for
noon, Jan. 4. Intended as an aid to understanding, not a discrete location.
<b>date_begin, date_end</b>
We have included the start and stop day for each sample which we
believe constrains the sample time about as well as is useful for these
data. We also have pump volume and thus a mean concentration of dust
per cubic meter of air for that time frame. The actual number of hours
sampled during a time block (number of days) is complicated to
present. Pumps were turned on and off repetitively depending upon ship
maneuvers and relative wind direction (to prevent ship exhaust
contamination). Also, the total number of hours the pumps were on is a
less useful measure than pump volume, because of the variability in
pump efficiency due to changing barometric pressures. An hours worth of
pumping does not always yield the same volume of air.
</pre>
from Cruise: TT054 <pre>
<b>PI:</b> Neil Tindale
<b>of:</b> Texas A&M University
<b>dataset:</b> Aerosols, long irradiation neutron activation analysis
<b>dates:</b> January 08, 1995 to December 18, 1995
<b>locations:</b> N: 22.8459 S: 09.8871 W: 57.2609 E: 68.2687
<b>project:</b> Arabian Sea
<b>ship:</b> Thomas Thompson
</pre>
<pre>
<h2>Dr. Neil Tindale, Texas A & M Univ.
JGOFS/Arabian Sea
Aerosols, short and long irradiation neutron activation analysis
</h2>
<b>JGOFS Arabian Sea Aerosol Data</b>
This mineral aerosol concentration data set is from samples collected
during several cruises on the R/V Thomas Thompson during the JGOFS
Arabian Sea field program. The data set includes the sampling period
for each sample; the "Day of Year", yrday, number for the start of the
sampling period for each sample; and the concentration of different
elements for each sample, in micrograms per cubic meter. For the
sampling period, "nd" is used as a filler to indicate "no data" gaps in
the data array. The dust values are estimated using aluminum
concentrations determined by neutron activation analysis. While most
samples cover a multi-day period, we only have data for about 150
days. We didn't participate in all of the cruises and, on the cruises
where samples were collected, often sampling conditions were less than
ideal (bad weather, ship maneuvering, relative wind from astern etc.).
A few samples that were collected showed obvious contamination from
local sources, presumably from material from the R/V Thompson or from
nearby fishing boats, and these samples were discarded and are not
included in the data set. While the sampling period represents the
period during which sampling occurred, sampling was usually not
continuous. Sampling was frequently stopped, whenever sampling
conditions were no longer suitable. Thus the concentration value at
any particular date represents a time integrated sample which is
usually non-continuous.
Cautionary comments:
1. There may be a problem with the estimate for the mineral "dust"
concentration. Most researchers use the average crustal ratio to estimate
mineral dust concentrations using elemental concentration data (Al, Fe,
etc.). Surface sand and silt samples that were collected in Oman in the
Wahibah Sands region have distinct, non-crustal ratios. If individual
aerosol samples are comprised of material from distinct sources, including
Oman, then it is not unreasonable for their elemental ratios to differ from
the published "average" crustal ratio that is used in most aerosol studies.
2. The amount of Ti in all the aerosol samples was small, despite there
being a reasonable amount of dust material in most samples. The peaks for
Cr and Ti overlap in the neutron activation short irradiation analysis and
if significant quantities of Cr are present, this will interfere with the Ti
analysis. With the exception of one sample, the Ti values are at or below
the detection limit. The sole value above the detection limit was corrected
for the Cr contribution using a correction based on the Cr values from the
long irradiations. The correction changed the Ti value by less than 5%.
The Ti data flagged as being at or below the detection limit was not
corrected for possible Cr interference.
</pre>
<pre><h2>Data management office notes on supplementary fields - aerosols data</h2>
<b>lat, lon</b>
A nominal ship location is given in lat/lon. The location is the noon
position most near the middle of the sampling period, e.g. for a sample
which was pumped intermittently from Jan. 3 - 5, the location is given for
noon, Jan. 4. Intended as an aid to understanding, not a discrete location.
<b>date_begin, date_end</b>
We have included the start and stop day for each sample which we
believe constrains the sample time about as well as is useful for these
data. We also have pump volume and thus a mean concentration of dust
per cubic meter of air for that time frame. The actual number of hours
sampled during a time block (number of days) is complicated to
present. Pumps were turned on and off repetitively depending upon ship
maneuvers and relative wind direction (to prevent ship exhaust
contamination). Also, the total number of hours the pumps were on is a
less useful measure than pump volume, because of the variability in
pump efficiency due to changing barometric pressures. An hours worth of
pumping does not always yield the same volume of air.
</pre>
Specified by the Principal Investigator(s)
<pre>
<h3>Data management office notes on supplementary fields - aerosols data</h3>
<b>lat, lon</b>
A nominal ship location is given in lat/lon. The location is the noon
position most near the middle of the sampling period, e.g. for a sample
which was pumped intermittently from Jan. 3 - 5, the location is given for
noon, Jan. 4. Intended as an aid to understanding, not a discrete location.
<b>date_begin, date_end</b>
We have included the start and stop day for each sample which we
believe constrains the sample time about as well as is useful for these
data. We also have pump volume and thus a mean concentration of dust
per cubic meter of air for that time frame. The actual number of hours
sampled during a time block (number of days) is complicated to
present. Pumps were turned on and off repetitively depending upon ship
maneuvers and relative wind direction (to prevent ship exhaust
contamination). Also, the total number of hours the pumps were on is a
less useful measure than pump volume, because of the variability in
pump efficiency due to changing barometric pressures. An hours worth of
pumping does not always yield the same volume of air.
</pre>
from Cruise: TT043 <pre>
</pre>
<h3>Data management office notes on supplementary fields - aerosols data</h3>
<p><strong>lat, lon</strong> A nominal ship location is given in lat/lon. The location is the noon position most near the middle of the sampling period, e.g. for a sample which was pumped intermittently from Jan. 3 - 5, the location is given for noon, Jan. 4. Intended as an aid to understanding, not a discrete location. <strong>date_begin, date_end</strong> We have included the start and stop day for each sample which we believe constrains the sample time about as well as is useful for these data. We also have pump volume and thus a mean concentration of dust per cubic meter of air for that time frame. The actual number of hours sampled during a time block (number of days) is complicated to present. Pumps were turned on and off repetitively depending upon ship maneuvers and relative wind direction (to prevent ship exhaust contamination). Also, the total number of hours the pumps were on is a less useful measure than pump volume, because of the variability in pump efficiency due to changing barometric pressures. An hours worth of pumping does not always yield the same volume of air.</p>
Specified by the Principal Investigator(s)
asNeeded
7.x-1.1
Biological and Chemical Oceanography Data Management Office (BCO-DMO)
Unavailable
508-289-2009
WHOI MS#36
Woods Hole
MA
02543
USA
info@bco-dmo.org
http://www.bco-dmo.org
Monday - Friday 8:00am - 5:00pm
For questions regarding this resource, please contact BCO-DMO via the email address provided.
pointOfContact
Pump Air Sampler
Pump Air Sampler
PI Supplied Instrument Name: Pump Air Sampler PI Supplied Instrument Description:Air sampling pumps. were mounted in a 6-m shipping container located on the foredeck's container storage rack. The air sampler was a HiVol system loaded with a single unwashed Whatman 41t "lter and with a #ow rate of&1.2}1.4 m3 min~1. Instrument Name: Pump Air Sampler Instrument Short Name:Pump Air Sampler Instrument Description: A Pump Air Sampler is an instrument that continuously supplies a flow of air either to an analytical instrument, over a sensor, through filters or from which discrete samples may be drawn for subsequent analysis. This instrument designation is used when specific make and model are not known. Community Standard Description: http://vocab.nerc.ac.uk/collection/L05/current/58/
Cruise: TT043
TT043
R/V Thomas G. Thompson
Community Standard Description
International Council for the Exploration of the Sea
R/V Thomas G. Thompson
vessel
TT043
Michael R. Roman
University of Maryland Center for Environmental Science
http://osprey.bcodmo.org/datasetDeployment.cfm?ddid=2580&did=353&flag=view
Report describing TT043
Cruise: TT044
TT044
R/V Thomas G. Thompson
Community Standard Description
International Council for the Exploration of the Sea
R/V Thomas G. Thompson
vessel
TT044
Kenneth H. Brink
Woods Hole Oceanographic Institution
Cruise: TT045
TT045
R/V Thomas G. Thompson
Community Standard Description
International Council for the Exploration of the Sea
R/V Thomas G. Thompson
vessel
TT045
John F. Marra
Lamont-Doherty Earth Observatory
Cruise: TT048
TT048
R/V Thomas G. Thompson
Community Standard Description
International Council for the Exploration of the Sea
R/V Thomas G. Thompson
vessel
TT048
Kenneth H. Brink
Woods Hole Oceanographic Institution
Cruise: TT049
TT049
R/V Thomas G. Thompson
Community Standard Description
International Council for the Exploration of the Sea
R/V Thomas G. Thompson
vessel
TT049
Richard Barber
Duke University
Cruise: TT050
TT050
R/V Thomas G. Thompson
Community Standard Description
International Council for the Exploration of the Sea
R/V Thomas G. Thompson
vessel
TT050
Sharon L. Smith
University of Miami
Cruise: TT053
TT053
R/V Thomas G. Thompson
Community Standard Description
International Council for the Exploration of the Sea
R/V Thomas G. Thompson
vessel
TT053
William M. Balch
University of Miami
Cruise: TT054
TT054
R/V Thomas G. Thompson
Community Standard Description
International Council for the Exploration of the Sea
R/V Thomas G. Thompson
vessel
TT054
Wilford D. Gardner
Texas A&M University
R/V Thomas G. Thompson
Community Standard Description
International Council for the Exploration of the Sea
R/V Thomas G. Thompson
vessel