http://lod.bco-dmo.org/id/dataset/2533
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
2009-09-24
ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data
ISO 19115-2:2009(E)
Pigments, HPLC method, sampled from bottle casts from R/V Thomas G. Thompson TT043, TT045, TT049, TT050, TT053, TT054 cruises in the Arabian Sea in 1995 (U.S. JGOFS Arabian Sea project)
2002-04-09
publication
2002-04-09
revision
BCO-DMO Linked Data URI
2002-04-09
creation
http://lod.bco-dmo.org/id/dataset/2533
Robert R. Bidigare
University of Hawai'i
principalInvestigator
Ralf Goericke
University of California-San Diego Scripps
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: Goericke, R., Bidigare, R. R. (2002) Pigments, HPLC method, sampled from bottle casts from R/V Thomas G. Thompson TT043, TT045, TT049, TT050, TT053, TT054 cruises in the Arabian Sea in 1995 (U.S. JGOFS Arabian Sea project). Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version final) Version Date 2002-04-09 [if applicable, indicate subset used]. http://lod.bco-dmo.org/id/dataset/2533 [access date]
Pigments, HPLC method, sampled from bottle casts Dataset Description: <p>Pigments, HPLC method, sampled from bottle casts</p> Methods and Sampling: <p>See Platform deployments for cruise specific documentation</p>
Funding provided by National Science Foundation (NSF) Award Number: unknown Arabian Sea NSF
Funding provided by National Aeronautics & Space Administration (NASA) Award Number: unknown Arabian Sea NASA
completed
Robert R. Bidigare
University of Hawai'i
(808) 956-8146
Department of Oceanography University of Hawaii
Honolulu
HI
96822
USA
bidigare@soest.hawaii.edu
pointOfContact
Ralf Goericke
University of California-San Diego Scripps
9500 Gilman Drive Mail Code: 0218
La Jolla
CA
92093
USA
rgoericke@ucsd.edu
pointOfContact
asNeeded
Dataset Version: final
Unknown
event
sta_std
sta
cast
bot
depth_n
chlide_a
chl_c3
chl_c
peridinin
fucox_but
fucox
fucox_hex
violax
diadinox
allox
diatox
zeax
carotene
chl_b2
chl_b1
chl_a2
chl_a1
chl_b_tot
chl_a_tot
neox
chl_c4_1
chl_c4_2
pig_unid
cis_fucox
cis_hex
prasinox
lutein
carotene_a
carotene_b
replicate
chlide_b
chl_a1_prime
Niskin Bottle
Trace Metal Bottle
theme
None, User defined
event
No BCO-DMO term
cast
chlorophyll c3
chlorophyll c total
replicate
featureType
BCO-DMO Standard Parameters
Niskin bottle
Trace Metal Bottle
instrument
BCO-DMO Standard Instruments
TT043
TT045
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
2002-04-09
Arabian Sea
0
BCO-DMO catalogue of parameters from Pigments, HPLC method, sampled from bottle casts from R/V Thomas G. Thompson TT043, TT045, TT049, TT050, TT053, TT054 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/10085.rdf
Name: event
Units: dimensionless
Description: <p>event number from event log</p>
http://lod.bco-dmo.org/id/dataset-parameter/10086.rdf
Name: sta_std
Units: unknown
Description: <p>Arabian Sea standard station identifier</p>
http://lod.bco-dmo.org/id/dataset-parameter/10087.rdf
Name: sta
Units: unknown
Description: <p>station number from event log</p>
http://lod.bco-dmo.org/id/dataset-parameter/10088.rdf
Name: cast
Units: dimensionless
Description: <p>CTD or TM cast number from event log</p>
http://lod.bco-dmo.org/id/dataset-parameter/10089.rdf
Name: bot
Units: unknown
Description: <p>CTD or TM bottle number</p>
http://lod.bco-dmo.org/id/dataset-parameter/10090.rdf
Name: depth_n
Units: meters
Description: <p>nominal sample depth</p>
http://lod.bco-dmo.org/id/dataset-parameter/10091.rdf
Name: chlide_a
Units: nanogram/liter
Description: <p>chlorophyllide a</p>
http://lod.bco-dmo.org/id/dataset-parameter/10092.rdf
Name: chl_c3
Units: nanogram/liter
Description: <p>chlorophyll c3</p>
http://lod.bco-dmo.org/id/dataset-parameter/10093.rdf
Name: chl_c
Units: nanogram/liter
Description: <p>sum of chl_c1, chl_c2 and Mg 3,8 divinyl-pheophorphyrin a5</p>
http://lod.bco-dmo.org/id/dataset-parameter/10094.rdf
Name: peridinin
Units: nanogram/liter
Description: <p>peridinin</p>
http://lod.bco-dmo.org/id/dataset-parameter/10095.rdf
Name: fucox_but
Units: nanogram/liter
Description: <p>19'-butanoyloxyfucoxanthin</p>
http://lod.bco-dmo.org/id/dataset-parameter/10096.rdf
Name: fucox
Units: nanogram/liter
Description: <p>fucoxanthin</p>
http://lod.bco-dmo.org/id/dataset-parameter/10097.rdf
Name: fucox_hex
Units: nanogram/liter
Description: <p>19'-hexanoyloxyfucoxanthin</p>
http://lod.bco-dmo.org/id/dataset-parameter/10098.rdf
Name: violax
Units: nanogram/liter
Description: <p>violaxanthin</p>
http://lod.bco-dmo.org/id/dataset-parameter/10099.rdf
Name: diadinox
Units: nanogram/liter
Description: <p>diadinoxanthin</p>
http://lod.bco-dmo.org/id/dataset-parameter/10100.rdf
Name: allox
Units: nanogram/liter
Description: <p>alloxanthin</p>
http://lod.bco-dmo.org/id/dataset-parameter/10101.rdf
Name: diatox
Units: nanogram/liter
Description: <p>diatoxanthin</p>
http://lod.bco-dmo.org/id/dataset-parameter/10102.rdf
Name: zeax
Units: nanogram/liter
Description: <p>zeaxanthin</p>
http://lod.bco-dmo.org/id/dataset-parameter/10103.rdf
Name: carotene
Units: nanogram/liter
Description: <p>sum of alpha and beta carotene</p>
http://lod.bco-dmo.org/id/dataset-parameter/10104.rdf
Name: chl_b2
Units: nanogram/liter
Description: <p>divinyl chlorophyll b</p>
http://lod.bco-dmo.org/id/dataset-parameter/10105.rdf
Name: chl_b1
Units: nanogram/liter
Description: <p>monovinyl chlorophyll b</p>
http://lod.bco-dmo.org/id/dataset-parameter/10106.rdf
Name: chl_a2
Units: nanogram/liter
Description: <p>divinyl chlorophyll a</p>
http://lod.bco-dmo.org/id/dataset-parameter/10107.rdf
Name: chl_a1
Units: nanogram/liter
Description: <p>monovinyl chlorophyll a</p>
http://lod.bco-dmo.org/id/dataset-parameter/10108.rdf
Name: chl_b_tot
Units: nanogram/liter
Description: <p>sum of chl_b1 and chl_b2</p>
http://lod.bco-dmo.org/id/dataset-parameter/10109.rdf
Name: chl_a_tot
Units: nanogram/liter
Description: <p>sum of chl_a1, chl_a2, chlide_a, chl_a1' and allomerized chla</p>
http://lod.bco-dmo.org/id/dataset-parameter/10110.rdf
Name: neox
Units: nanogram/liter
Description: <p>neoxanthin</p>
http://lod.bco-dmo.org/id/dataset-parameter/10111.rdf
Name: chl_c4_1
Units: nanogram/liter
Description: <p>phytolated chl_c type 1</p>
http://lod.bco-dmo.org/id/dataset-parameter/10112.rdf
Name: chl_c4_2
Units: nanogram/liter
Description: <p>phytolated chl_c type 2</p>
http://lod.bco-dmo.org/id/dataset-parameter/10113.rdf
Name: pig_unid
Units: nanogram/liter
Description: <p>pigments, sum of all major unidentified</p>
http://lod.bco-dmo.org/id/dataset-parameter/10114.rdf
Name: cis_fucox
Units: nanogram/liter
Description: <p>Cis-fucoxanthin</p>
http://lod.bco-dmo.org/id/dataset-parameter/10115.rdf
Name: cis_hex
Units: nanogram/liter
Description: <p>Cis-19'-hexanoyloxyfucoxanthin</p>
http://lod.bco-dmo.org/id/dataset-parameter/10116.rdf
Name: prasinox
Units: nanogram/liter
Description: <p>Prasinoxanthin</p>
http://lod.bco-dmo.org/id/dataset-parameter/10117.rdf
Name: lutein
Units: nanogram/liter
Description: <p>Lutein</p>
http://lod.bco-dmo.org/id/dataset-parameter/10118.rdf
Name: carotene_a
Units: nanogram/liter
Description: <p>alpha-carotene</p>
http://lod.bco-dmo.org/id/dataset-parameter/10119.rdf
Name: carotene_b
Units: nanogram/liter
Description: <p>beta-carotene</p>
http://lod.bco-dmo.org/id/dataset-parameter/10120.rdf
Name: replicate
Units: unknown
Description: <p>yes - indicates replicate measurements</p>
http://lod.bco-dmo.org/id/dataset-parameter/10121.rdf
Name: chlide_b
Units: nanogram/liter
Description: <p>chlorophyllide b</p>
http://lod.bco-dmo.org/id/dataset-parameter/10122.rdf
Name: chl_a1_prime
Units: nanogram/liter
Description: <p>chlorophyll a1'</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
63115
https://datadocs.bco-dmo.org/file/0A71lKJCrW1ONk/HPLC_pigments_TT043.csv
HPLC_pigments_TT043.csv
version April 9, 2002
(original version May 13, 1997)
Ralf Goericke
HPLC measured pigments from bottle casts
Thomas Thompson cruise TTN-043, Process Cruise 1, Arabian Sea
download
30355
https://datadocs.bco-dmo.org/file/7D0jvRgfVl2A1v/HPLC_pigments_TT045.csv
HPLC_pigments_TT045.csv
Version May 8, 2001
Robert Bidigare
HPLC measured pigments, samples drawn from bottle casts
Thomas Thompson cruise TTN-045, process cruise 2, Arabian Sea
download
65517
https://datadocs.bco-dmo.org/file/KAy0WDJF2M9AGj/HPLC_pigments_TT049.csv
HPLC_pigments_TT049.csv
version April 9, 2002
(original version May 13, 1997)
Ralf Goericke
HPLC measured pigments from bottle casts
Thomas Thompson cruise TTN049, Process Cruise 4, Arabian Sea
download
31689
https://datadocs.bco-dmo.org/file/OJDO1KNHElpX74/HPLC_pigments_TT050.csv
HPLC_pigments_TT050.csv
Version May 8, 2001
Robert Bidigare
HPLC measured pigments, samples drawn from bottle casts
Thomas Thompson cruise TTN-050, process cruise 5, Arabian Sea
download
57015
https://datadocs.bco-dmo.org/file/YVm2k81Sk96Jm2/HPLC_pigments_TT053.csv
HPLC_pigments_TT053.csv
Version May 8, 2001
Robert Bidigare
HPLC measured pigments, samples drawn from bottle casts
Thomas Thompson cruise TTN-053, process cruise 6, Arabian Sea
download
49256
https://datadocs.bco-dmo.org/file/QAGQ3MoHN73PXn/HPLC_pigments_TT054.csv
HPLC_pigments_TT054.csv
Version August 23, 2001
(original version April 21, 1998)
PI: Ralf Goericke
dataset: HPLC measured pigments from bottle casts
cruise: Arabian Sea TTN-054, Process Cruise 7
ship: R/V Thomas Thompson
download
https://osprey.bco-dmo.org/dataset/2533/data/download
download
onLine
dataset
<p>See Platform deployments for cruise specific documentation</p>
from Cruise: TT043 <pre>
<b>PI:</b> Ralf Goericke
<b>of:</b> Scripps Institute of Oceanography
<b>dataset:</b> Pigments, HPLC method, sampled from bottle casts
<b>dates:</b> January 08, 1995 to February 01, 1995
<b>location:</b> N: 22.4835 S: 9.9826 W: 57.299 E: 68.75
<b>cruise:</b> TTN-043, Arabian Sea Process cruise 1
<b>ship:</b> R/V Thomas Thompson
<b>Methodology</b>
Goericke and Repeta (1993), Mar.Ecol.Prog.Ser., 101:307-313
</pre>
from Cruise: TT045
<pre>
<b>PI:</b> Robert R. Bidigare
<b>of:</b> University of Hawaii
<b>dataset:</b> Pigments, HPLC method, sampled from bottle casts
<b>dates:</b> March 14, 1995 to April 07, 1995
<b>location:</b> N: 22.4853 S: 9.9994 W: 57.3007 E: 68.7532
<b>cruise:</b> TTN-045, Arabian Sea Process cruise #2 (Spring Intermonsoon)
<b>ship:</b> R/V Thomas Thompson
</pre>
from Cruise: TT049
<pre>
<b>PI:</b> Ralf Goericke
<b>of:</b> Scripps Institute of Oceanography
<b>dataset:</b> Pigments, HPLC method, sampled from bottle casts
<b>dates:</b> July 18, 1995 to August 13, 1995
<b>location:</b> N: 22.5001 S: 9.9258 W: 57.2997 E: 68.7507
<b>cruise:</b> TTN-049, Arabian Sea Process cruise 4 (Middle SW Monsoon)
<b>ship:</b> R/V Thomas Thompson
<b>Methodology</b>
Goericke and Repeta (1993), Mar.Ecol.Prog.Ser., 101:307-313
</pre>
from Cruise: TT050 <pre>
<b>PI:</b> Robert R. Bidigare
<b>of:</b> University of Hawaii
<b>dataset:</b> Pigments, HPLC method, sampled from bottle casts
<b>dates:</b> August 18, 1995 to September 13, 1995
<b>location:</b> N: 22.4688 S: 9.9991 W: 57.3004 E: 68.7494
<b>cruise:</b> TTN-050, Arabian Sea Process cruise #5 (Late SW Monsoon)
<b>ship:</b> R/V Thomas Thompson
</pre>
from Cruise: TT053
<pre>
<b>PI:</b> Robert R. Bidigare
<b>of:</b> University of Hawaii
<b>dataset:</b> Pigments, HPLC method, sampled from bottle casts
<b>dates:</b> October 29, 1995 to November 25, 1995
<b>location:</b> N: 24.3302 S: 10.0823 W: 56.4858 E: 67.1666
<b>cruise:</b> TTN-053, Arabian Sea Process cruise #6 (bio-optics)
<b>ship:</b> R/V Thomas Thompson
</pre>
from Cruise: TT054
<pre>
<b>PI:</b> Ralf Goericke
<b>of:</b> University of California, San Diego
<b>dataset:</b> Pigments, HPLC method, sampled from bottle casts
<b>dates:</b> November 30, 1995 to December 26, 1995
<b>location:</b> N: 22.5171 S: 9.9789 W: 57.2992 E: 68.7849
<b>project/cruise:</b> Arabian Sea/TTN-054, Process cruise 7 (Early NE Monsoon)
<b>ship:</b> R/V Thomas Thompson
<b>Methodology</b>
Goericke and Repeta (1993), Mar.Ecol.Prog.Ser., 101:307-313
</pre>
Specified by the Principal Investigator(s)
<p>See Platform deployments for cruise specific documentation</p>
from Cruise: TT045 <pre>
<h2>HPLC Pigment methods</h2>
<b>Method by Wright et al (Mar. Ecol. Prog. Ser. 1991, 77:183-196) CHLA1,
CHLA2, CHLB1 and CHLB2 estimated following the method of Latasa et al
(Mar. Chem. 1996, 51:315-324)</b>
<hr>
Pigment data for P2 & P5:
A comparison of the TURNER-determined chlorophyll a concentrations with the
HPLC-determined TOTCHLA concentrations (monovinyl chlorophyll a + divinyl
chlorophyll a + monovinyl chlorophyllide a; units = ng Chl a
equivalents/L) was performed for Process Cruise #2 (TTN-045) and Process
Cruise #5 (TTN-050). While good correlations were obtained for both
cruises, the slope obtained for Process Cruise #5 was significantly
different from 1 (i.e., TURNER > HPLC). This difference was probably
caused by the presence of Chl a-related pigments during Process Cruise #5.
Thus, we recommend that whenever possible use the HPLC pigment data and not
the TURNER pigment data. If HPLC data is not available for a given cast,
we further recommend that you use the following equations to transform the
TURNER data into HPLC-equivalent concentrations (cf., Babin, M., A. Morel,
H. Claustre, A. Bricaud, Z. Kolber and P.G. Falkowski. 1996. Nitrogen-
and irradiance-dependent variations of the maximum quantum yield of carbon
fixation in eutrophic, mesotrophic and oligotrophic marine systems.
Deep-Sea Research, in press).
Results of geometric mean regression analyses (reduced major axis):
Y = HPLC TOTCHLA (monovinyl chlorophyll a + divinyl chlorophyll a +
monovinyl chlorophyllide a), units = ng Chl a equivalents/L
X = TURNER chlorophyll a (it is necessary to convert the Turner Chl a
concentrations in the Arabian Sea data base from mg/m3 to ng/L by
multiplying concentrations by 1000)
(1) Process Cruise #2 (TTN-045)
HPLC TOTCHLA = TURNER*(0.975) + 4.833 (r = 0.9822, n = 146)
(2) Process Cruise #5 (TTN-050)
HPLC TOTCHLA = TURNER*(0.708) + 12.881 (r = 0.9772, n = 575)
Robert R. Bidigare
Department of Oceanography
University of Hawaii
Honolulu, HI 96822
808-956-6567 (voice mail)
808-956-9516 (fax)
</pre>
from Cruise: TT050 <pre>
<h2>HPLC Pigment methods</h2>
<b>Method by Wright et al (Mar. Ecol. Prog. Ser. 1991, 77:183-196) CHLA1,
CHLA2, CHLB1 and CHLB2 estimated following the method of Latasa et al
(Mar. Chem. 1996, 51:315-324)</b>
<hr>
Pigment data for P2 & P5:
A comparison of the TURNER-determined chlorophyll a concentrations with the
HPLC-determined TOTCHLA concentrations (monovinyl chlorophyll a + divinyl
chlorophyll a + monovinyl chlorophyllide a; units = ng Chl a
equivalents/L) was performed for Process Cruise #2 (TTN-045) and Process
Cruise #5 (TTN-050). While good correlations were obtained for both
cruises, the slope obtained for Process Cruise #5 was significantly
different from 1 (i.e., TURNER > HPLC). This difference was probably
caused by the presence of Chl a-related pigments during Process Cruise #5.
Thus, we recommend that whenever possible use the HPLC pigment data and not
the TURNER pigment data. If HPLC data is not available for a given cast,
we further recommend that you use the following equations to transform the
TURNER data into HPLC-equivalent concentrations (cf., Babin, M., A. Morel,
H. Claustre, A. Bricaud, Z. Kolber and P.G. Falkowski. 1996. Nitrogen-
and irradiance-dependent variations of the maximum quantum yield of carbon
fixation in eutrophic, mesotrophic and oligotrophic marine systems.
Deep-Sea Research, in press).
Results of geometric mean regression analyses (reduced major axis):
Y = HPLC TOTCHLA (monovinyl chlorophyll a + divinyl chlorophyll a +
monovinyl chlorophyllide a), units = ng Chl a equivalents/L
X = TURNER chlorophyll a (it is necessary to convert the Turner Chl a
concentrations in the Arabian Sea data base from mg/m3 to ng/L by
multiplying concentrations by 1000)
(1) Process Cruise #2 (TTN-045)
HPLC TOTCHLA = TURNER*(0.975) + 4.833 (r = 0.9822, n = 146)
(2) Process Cruise #5 (TTN-050)
HPLC TOTCHLA = TURNER*(0.708) + 12.881 (r = 0.9772, n = 575)
Robert R. Bidigare
Department of Oceanography
University of Hawaii
Honolulu, HI 96822
808-956-6567 (voice mail)
808-956-9516 (fax)
</pre>
from Cruise: TT053 <pre>
<h2>HPLC Pigment methods - Process 6</h2>
Robert Bidigare
University of Hawaii
References:
1. Wright et al (Mar. Ecol. Prog. Ser. 1991, 77:183-196)
2. Latasa et al (Mar. Chem. 1996, 51:315-324) - estimates of
chl_a1, chl_a2, chl_b1 and chl_b2
Methodology notes for the P6 pigment data:
I) A comparison of the TURNER-determined chlorophyll a concentrations with
the HPLC-determined TOTCHLA concentrations (monovinyl chlorophyll a +
divinyl chlorophyll a + monovinyl chlorophyllide a; units = ng Chl a
equivalents/L) was performed for Process Cruise #6 (TTN-053). While a
slope of approximately of 1 was obtained (see below), there was a
significant amount of scatter in the cross-plot (r = 0.938). This scatter
was probably caused in part by the variable presence of Chl accessory
pigments which interfere with the fluorometric method. Thus, we recommend
that whenever possible use the HPLC pigment data and not the TURNER pigment
data. If HPLC data is not available for a given cast, we further recommend
that you use the following equation to transform the TURNER data into
HPLC-equivalent concentrations (cf., Babin, M., A. Morel, H. Claustre, A.
Bricaud, Z. Kolber and P.G. Falkowski. 1996. Nitrogen- and
irradiance-dependent variations of the maximum quantum yield of carbon
fixation in eutrophic, mesotrophic and oligotrophic marine systems.
Deep-Sea Research, in press).
Results of geometric mean regression analyses (reduced major axis):
Y = HPLC TOTCHLA (monovinyl chlorophyll a + divinyl chlorophyll a +
monovinyl chlorophyllide a), units = ng Chl a equivalents/L
X = TURNER chlorophyll a (it is necessary to convert the Turner Chl a
concentrations in the Arabian Sea data base from mg/m3 to ng/L by
multiplying concentrations by 1000)
Process Cruise #6 (TTN-053)
HPLC TOTCHLA = TURNER*(1.052) - 56.474 (r = 0.938, n = 479)
II) Accessory pigment quantification
(1) Although most pigment peaks were clearly identifiable based on
retention time, a few of the minor pigments presented difficulties. The
presence of lutein, in particular, was difficult to determine
unambiguously. Lutein concentrations are therefore specified only where
that peak is clearly evident, although it may be present in trace
quantities in other samples as well.
(2) The peak identified as alloxanthin agreed very well with a concurrently
run standard for approximately the first half of the samples run. However,
in samples run later, what appears to be the same peak does not agree well
with the known alloxanthin retention time. Since samples were run in
random order and because there is no particular reason for the sudden
absence of the pigment, we continued to identify this peak as alloxanthin
throughout the remainder of the data set. The appearance of the peak as a
doublet in some instances suggests the possibility of pigment alteration
(e.g., a trans to cis isomerization). The change in agreement between
sample and standard alloxanthin peaks also corresponds with a change in the
HPLC column, though this does not appear to have affected the comparability
of other peaks with their standards.
(3) Chlorophyll b occasionally appeared as a split peak, or with a very
close shoulder on the main peak (either leading or trailing). This may
have resulted from either a partial separation of monovinyl and divinyl
chlorophyll b, or from the coelution of some other pigment with chlorophyll
b. In all cases where this occurred, both peaks (or peak with shoulder)
were included in the area used to calculate chlorophyll b concentrations.
</pre>
Specified by the Principal Investigator(s)
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7.x-1.1
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For questions regarding this resource, please contact BCO-DMO via the email address provided.
pointOfContact
Niskin Bottle
Niskin Bottle
PI Supplied Instrument Name: Niskin Bottle PI Supplied Instrument Description:CTD/Niskin Rosette bottles Instrument Name: Niskin bottle Instrument Short Name:Niskin bottle Instrument Description: A Niskin bottle (a next generation water sampler based on the Nansen bottle) is a cylindrical, non-metallic water collection device with stoppers at both ends. The bottles can be attached individually on a hydrowire or deployed in 12, 24, or 36 bottle Rosette systems mounted on a frame and combined with a CTD. Niskin bottles are used to collect discrete water samples for a range of measurements including pigments, nutrients, plankton, etc. Community Standard Description: http://vocab.nerc.ac.uk/collection/L22/current/TOOL0412/
Trace Metal Bottle
Trace Metal Bottle
PI Supplied Instrument Name: Trace Metal Bottle PI Supplied Instrument Description:Trace Metal (TM) Rosette bottles Instrument Name: Trace Metal Bottle Instrument Short Name:TM Bottle Instrument Description: Trace metal (TM) clean rosette bottle used for collecting trace metal clean seawater samples. Community Standard Description: http://vocab.nerc.ac.uk/collection/L05/current/30/
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: 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: 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