http://lod.bco-dmo.org/id/dataset/643639
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
2016-04-27
ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data
ISO 19115-2:2009(E)
Depth profiles of seawater dissolved 232Th, 230Th, and 231Pa during the GEOTRACES Equatorial Pacific Zonal Transect on cruise TN303 during 2013
2017-01-31
publication
2017-01-31
revision
BCO-DMO Linked Data URI
2017-01-31
creation
http://lod.bco-dmo.org/id/dataset/643639
Robert F. Anderson
Lamont-Doherty Earth Observatory
principalInvestigator
Hai Cheng
University of Minnesota Twin Cities
principalInvestigator
R. Lawrence Edwards
University of Minnesota Twin Cities
principalInvestigator
Martin Q. Fleisher
Lamont-Doherty Earth Observatory
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: Anderson, R. F., Fleisher, M. Q., Edwards, R. L., Cheng, H. (2017) Depth profiles of seawater dissolved 232Th, 230Th, and 231Pa during the GEOTRACES Equatorial Pacific Zonal Transect on cruise TN303 during 2013. Biological and Chemical Oceanography Data Management Office (BCO-DMO). Version Date 2017-01-31 [if applicable, indicate subset used]. http://lod.bco-dmo.org/id/dataset/643639 [access date]
Depth profiles of seawater dissolved 232Th, 230Th, and 231Pa Dataset Description: <p>The FISH and BOTTLE data have been split into separate columns as per GEOTRACES Parameter Naming Conventions. The&nbsp;FISH data are to the far right.</p>
<p>* To access the data with the FISH and BOTTLE data merged, see:<br />
<a href="http://data.bco-dmo.org/jg/serv/BCO/GEOTRACES/EPZT/Th_Pa_diss_joined.html0%7Bdir=data.bco-dmo.org/jg/dir/BCO/GEOTRACES/EPZT/,info=data.bco-dmo.org/jg/info/BCO/GEOTRACES/EPZT/Th_Pa_diss%7D" target="_blank">http://data.bco-dmo.org/jg/serv/BCO/GEOTRACES/EPZT/Th_Pa_diss_joined.html0%7Bdir=data.bco-dmo.org/jg/dir/BCO/GEOTRACES/EPZT/,info=data.bco-dmo.org/jg/info/BCO/GEOTRACES/EPZT/Th_Pa_diss%7D</a></p> Methods and Sampling: <p>See methodology and notes (<a href="http://data.bco-dmo.org/GEOTRACES/Anderson/EPZT_Anderson_Th_Pa_diss_methods.pdf" target="_blank">pdf</a>)</p>
<p><strong>Related References:</strong></p>
<p>Andersen, M.B., Stirling, C.H., Zimmermann, B., Halliday, A.N. (2010) Precise determination of the open ocean 234U/238U composition. Geochem. Geophys. Geosyst. 11, Q12003.</p>
<p>Anderson, R.F., Fleisher, M.Q., Robinson, L.F., Edwards, R.L., Hoff, J., Moran, S.B., Rutgers van der Loeff, M.M., Thomas, A.L., Roy-Barman, M., François, R. (2012) GEOTRACES intercalibration of <sup>230</sup>Th, <sup>232</sup>Th, <sup>231</sup>Pa, and prospects for <sup>10</sup>Be. Limnol. Oceanogr. Methods 10, 179-213.</p>
<p>Auro ME, LF Robinson, A Burke, LI Bradtmiller, MQ Fleisher, RF Anderson (2012) &nbsp;Improvements to 232-thorium, 230-thorium, and 231-protactinium analysis in seawater arising from GEOTRACES intercalibration Limnology and Oceanography, Methods 10, 464-474</p>
<p>Chen, J.H., Lawrence Edwards, R., Wasserburg, G.J. (1986) <sup>238</sup>U, <sup>234</sup>U and <sup>232</sup>Th in seawater. Earth Planet. Sci. Lett. 80, 241-251.</p>
<p>Cheng, H., Edwards, R.L., Hoff, J., Gallup, C.D., Richards, D.A., and Asmerom, Y. (2000)&nbsp; The half-lives of uranium-234 and thorium-230.&nbsp; Chemical Geology 169, 17-33.</p>
<p>Cheng, H., Edwards, R.L., Shen, C.-C., Polyak, V.J., Asmerom, Y., Woodhead, J., Hellstrom, J., Wang, Y.J., Kong, X.G.,&nbsp; Spötl, C., Wang, X.F., and E.Calvin Alexander Jr. (2013) Improvements in <sup>230</sup>Th dating, <sup>230</sup>Th and <sup>234</sup>U half-life values, and U–Th isotopic measurements by multi-collector inductively coupled plasma mass spectrometry. Earth and Planetary Science Letters 371-372, 82-91.</p>
<p>Owens, S.A., Buesseler, K.O., Sims, K.W.W. (2011) Re-evaluating the 238U-salinity relationship in seawater: Implications for the 238U–234Th disequilibrium method. Marine Chemistry 127, 31-39.&nbsp;Rev. Geophys. 33 (2), 241–265.</p>
<p>Roy-Barman, M., Coppola, L. and Souhaut, M. (2002) Thorium isotopes in the western Mediterranean Sea: an insight into the marine particle dynamics. Earth Planet. Sci. Lett. 196, 161-174.</p>
<p>Shen, C.-C., Cheng, H., Edwards, R.L., Thomas, R.B. and Moran, S.B. (2003)&nbsp; Attogram-sized <sup>231</sup>Pa Analysis in Dissolved and Particulate fractions of Seawater by Thermal Ionization Mass Spectroscopy.&nbsp; Analytical Chemistry v. 75, issue 5, 1075-1079.</p>
<p>Shen, C.-C., Edwards, R.L., Cheng, H., Dorale, J.A., Thomas, R.B., Moran, S.B., Weinstein, S., and Edmonds, H.N. (2002)&nbsp; Uranium and thorium isotopic and concentration measurements by magnetic sector inductively coupled plasma mass spectrometry.&nbsp; Chemical Geology 185. no. 3-4, 165-178.</p>
<p>Shen, C.C., Wu, C.C., Cheng, H., Edwards, R.L., Hsieh, Y.T., Gallet, S., Chang, C.C., Li, T.Y., Lam, D.D., Kano, A, Hori, M. and Spotl, C. (2012) High-precision and high-resolution carbonate Th-230 dating by MC-ICP-MS with SEM protocols. Geochimica Cosmochim. Acta 99, 71-86.&nbsp; DOI: 10.1016/j.gca.2012.09.018</p>
<p>Taylor, S.R., McLennan, S.M., (1995) The geochemical evolution of the continental crust.</p>
<p>Weyer, S., Anbar, A.D., Gerdes, A., Gordon, G.W., Algeo, T.J., Boyle, E.A. (2008). Natural fractionation of 238U/235U. Geochim. Cosmochim. Acta 72, 345-359.</p>
Funding provided by NSF Division of Ocean Sciences (NSF OCE) Award Number: OCE-1233688 Award URL: https://www.nsf.gov/awardsearch/show-award?AWD_ID=1233688
completed
Robert F. Anderson
Lamont-Doherty Earth Observatory
845-365-8508
61 U.S. Route 9W, P.O. Box 1000 231 Comer Building
Palisades
NY
10964-8000
USA
boba@ldeo.columbia.edu
pointOfContact
Hai Cheng
University of Minnesota Twin Cities
612-624-9598
100 Union Street SE Shep Lab, Room 475
Minneapolis
MN
55455
USA
cheng021@umn.edu
pointOfContact
R. Lawrence Edwards
University of Minnesota Twin Cities
612-626-0207
116 Church Street SE Tate Hall, Room 471
Minneapolis
MN
55455
USA
edwar001@umn.edu
pointOfContact
Martin Q. Fleisher
Lamont-Doherty Earth Observatory
845-365-8632
233 Comer Bldg. 61 Route 9W
Palisades
NY
10964
USA
martyq@ldeo.columbia.edu
pointOfContact
asNeeded
Unknown
cruise_id
STNNBR
lab
CTDDEPTH
depth_pi
GEOTRC_SAMPNO
CASTNO
BTL_LAT
BTL_LON
lat_pi
lon_pi
GEOTRC_EVENTNO
SAMPNO
BTLNBR
BTLNBR_FLAG_W
ISO_DATETIME_UTC_START_EVENT
BTL_ISO_DATETIME_UTC
date_collected
time
date_dissolved_U_separation
Th_232_D_CONC_BOTTLE
Th_232_D_CONC_BOTTLE_ERR
Th_232_D_CONC_BOTTLE_FLAG
Th_230_D_CONC_BOTTLE
Th_230_D_CONC_BOTTLE_ERR
Th_230_D_CONC_BOTTLE_FLAG
Pa_231_D_CONC_BOTTLE
Pa_231_D_CONC_BOTTLE_ERR
Pa_231_D_CONC_BOTTLE_FLAG
Th_230_D_XS_CONC_BOTTLE
Th_230_D_XS_CONC_BOTTLE_ERR
Th_230_D_XS_CONC_BOTTLE_FLAG
Pa_231_D_XS_CONC_BOTTLE
Pa_231_D_XS_CONC_BOTTLE_ERR
Pa_231_D_XS_CONC_BOTTLE_FLAG
Th_232_D_CONC_FISH
Th_232_D_CONC_FISH_ERR
Th_232_D_CONC_FISH_FLAG
Th_230_D_CONC_FISH
Th_230_D_CONC_FISH_ERR
Th_230_D_CONC_FISH_FLAG
Pa_231_D_CONC_FISH
Pa_231_D_CONC_FISH_ERR
Pa_231_D_CONC_FISH_FLAG
Th_230_D_XS_CONC_FISH
Th_230_D_XS_CONC_FISH_ERR
Th_230_D_XS_CONC_FISH_FLAG
Pa_231_D_XS_CONC_FISH
Pa_231_D_XS_CONC_FISH_ERR
Pa_231_D_XS_CONC_FISH_FLAG
theme
None, User defined
Cruise identfier
station
laboratory
depth
sample identification
cast
latitude
longitude
event
bottle
flag
ISO_DateTime_UTC
date_utc
time of day
date
Thorium-232
Th232_err
Thorium-230
Th230_err
Protactinium-231
Pa231_err
featureType
BCO-DMO Standard Parameters
CTD Sea-Bird
GeoFish Towed near-Surface Sampler
Inductively Coupled Plasma Mass Spectrometer
Niskin bottle
instrument
BCO-DMO Standard Instruments
TN303
service
Deployment Activity
Eastern Tropical Pacific - Transect from Peru to Tahiti
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. GEOTRACES
http://www.geotraces.org/
U.S. GEOTRACES
GEOTRACES is a SCOR sponsored program; and funding for program infrastructure development is provided by the U.S. National Science Foundation.
GEOTRACES gained momentum following a special symposium, S02: Biogeochemical cycling of trace elements and isotopes in the ocean and applications to constrain contemporary marine processes (GEOSECS II), at a 2003 Goldschmidt meeting convened in Japan. The GEOSECS II acronym referred to the Geochemical Ocean Section Studies To determine full water column distributions of selected trace elements and isotopes, including their concentration, chemical speciation, and physical form, along a sufficient number of sections in each ocean basin to establish the principal relationships between these distributions and with more traditional hydrographic parameters;
* To evaluate the sources, sinks, and internal cycling of these species and thereby characterize more completely the physical, chemical and biological processes regulating their distributions, and the sensitivity of these processes to global change; and
* To understand the processes that control the concentrations of geochemical species used for proxies of the past environment, both in the water column and in the substrates that reflect the water column.
GEOTRACES will be global in scope, consisting of ocean sections complemented by regional process studies. Sections and process studies will combine fieldwork, laboratory experiments and modelling. Beyond realizing the scientific objectives identified above, a natural outcome of this work will be to build a community of marine scientists who understand the processes regulating trace element cycles sufficiently well to exploit this knowledge reliably in future interdisciplinary studies.
Expand "Projects" below for information about and data resulting from individual US GEOTRACES research projects.
U.S. GEOTRACES
largerWorkCitation
program
U.S. GEOTRACES East Pacific Zonal Transect (GP16)
http://www.geotraces.org/
U.S. GEOTRACES East Pacific Zonal Transect (GP16)
<p><strong>From the NSF Award Abstract</strong><br />
The mission of the International GEOTRACES Program (<a href="https://www.geotraces.org/" target="_blank">https://www.geotraces.org/</a>), of which the U.S. chemical oceanography research community is a founding member, is "to identify processes and quantify fluxes that control the distributions of key trace elements and isotopes in the ocean, and to establish the sensitivity of these distributions to changing environmental conditions" (GEOTRACES Science Plan, 2006). In the United States, ocean chemists are currently in the process of organizing a zonal transect in the eastern tropical South Pacific (ETSP) from Peru to Tahiti as the second cruise of the U.S.GEOTRACES Program. This Pacific section includes a large area characterized by high rates of primary production and particle export in the eastern boundary associated with the Peru Upwelling, a large oxygen minimum zone that is a major global sink for fixed nitrogen, and a large hydrothermal plume arising from the East Pacific Rise. This particular section was selected as a result of open planning workshops in 2007 and 2008, with a final recommendation made by the U.S.GEOTRACES Steering Committee in 2009. It is the first part of a two-stage plan that will include a meridional section of the Pacific from Tahiti to Alaska as a subsequent expedition.</p>
<p>This award provides funding for management of the U.S.GEOTRACES Pacific campaign to a team of scientists from the University of Southern California, Old Dominion University, and the Woods Hole Oceanographic Institution. The three co-leaders will provide mission leadership, essential support services, and management structure for acquiring the trace elements and isotopes samples listed as core parameters in the International GEOTRACES Science Plan, plus hydrographic and nutrient data needed by participating investigators. With this support from NSF, the management team will (1) plan and coordinate the 52-day Pacific research cruise described above; (2) obtain representative samples for a wide variety of trace metals of interest using conventional CTD/rosette and GEOTRACES Sampling Systems; (3) acquire conventional JGOFS/WOCE-quality hydrographic data (CTD, transmissometer, fluorometer, oxygen sensor, etc) along with discrete samples for salinity, dissolved oxygen (to 1 uM detection limits), plant pigments, redox tracers such as ammonium and nitrite, and dissolved nutrients at micro- and nanomolar levels; (4) ensure that proper QA/QC protocols are followed and reported, as well as fulfilling all GEOTRACES Intercalibration protocols; (5) prepare and deliver all hydrographic-type data to the GEOTRACES Data Center (and US data centers); and (6) coordinate cruise communications between all participating investigators, including preparation of a hydrographic report/publication.</p>
<p>Broader Impacts: The project is part of an international collaborative program that has forged strong partnerships in the intercalibration and implementation phases that are unprecedented in chemical oceanography. The science product of these collective missions will enhance our ability to understand how to interpret the chemical composition of the ocean, and interpret how climate change will affect ocean chemistry. Partnerships include contributions to the infrastructure of developing nations with overlapping interests in the study area, in this case Peru. There is a strong educational component to the program, with many Ph.D. students carrying out thesis research within the program.</p>
<p><em>Figure 1. The 2013 GEOTRACES EPZT Cruise Track. [click on the image to view a larger version]</em><br />
<a href="http://dmoserv3.whoi.edu/data_docs/GEOTRACES/EPZT/GEOTRACES_EPZT_TN303_CruiseTrack.png" target="_blank"><img alt="" src="https://datadocs.bco-dmo.org/d3/data_docs/GEOTRACES/EPZT/GEOTRACES_EPZT_TN303_CruiseTrack.png" /></a></p>
U.S. GEOTRACES EPZT
largerWorkCitation
project
U.S. GEOTRACES Pacific Section: Analysis of 230Th, 232Th and 231Pa
https://osprey.bco-dmo.org/project/643643
U.S. GEOTRACES Pacific Section: Analysis of 230Th, 232Th and 231Pa
<p>The International GEOTRACES program is a multi-national effort to survey (by a series of cross-ocean sections) and understand the global-ocean distribution of trace elements and isotopes in seawater. The GEOTRACES Science Plan has designated the natural radioisotopes 231Pa and 230Th to be key parameters inasmuch as their measurement on all sections is deemed to be critical to the success of entire international ocean science program</p>
<p>In this project, a research team from the Lamont- Doherty Earth Observatory of Columbia University and the University of Minnesota - Twin Cities will undertake measurement of the dissolved and particulate concentrations of 230Th and 231Pa on the US GEOTRACES Peru-Tahiti section, one of the American contributions to the global GEOTRACES effort. Additionally, they will measure dissolved and particulate 232Th concentrations and analyze a limited number of aerosol samples, aerosol leachates, and surface sediments for these radionuclides. These data will be used to: 1) Quantify the rates of boundary scavenging of 231Pa and 230Th associated with the biologically productive Peru upwelling system, 2) Quantify the rates of bottom scavenging of 231Pa and 230Th thought to be associated with resuspended sediments in nepheloid layers, 3) Quantify the uptake of dissolved Th and Pa by metalliferous particles associated with the hydrothermal plume emanating from the East Pacific Rise as well as by authigenic particles formed within the oxygen minimum zone, 4) Quantify the supply of lithogenic 232Th from margin sediments by the combined study of 232Th and 230Th, and 5) Quantify the supply of lithogenic 232Th from aerosols by the combined study of 232Th and 230Th.</p>
<p>Through collaboration with other US GEOTRACES investigators, the team expects that this work will provide unprecedented constraints on the processes that supply trace elements to the ocean as well as the processes that remove them.</p>
EPZT_Th_Pa
largerWorkCitation
project
eng; USA
oceans
Eastern Tropical Pacific - Transect from Peru to Tahiti
2017-01-31
From projects that focused on the following 2 locations: 1. Eastern Tropical Pacific - Transect from Peru to Tahiti (GP16) 2. Eastern Tropical South Pacific
0
BCO-DMO catalogue of parameters from Depth profiles of seawater dissolved 232Th, 230Th, and 231Pa during the GEOTRACES Equatorial Pacific Zonal Transect on cruise TN303 during 2013
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/648701.rdf
Name: cruise_id
Units: text
Description: <p>Official cruise identifier</p>
http://lod.bco-dmo.org/id/dataset-parameter/648702.rdf
Name: STNNBR
Units: unitless
Description: <p>GEOTRACES station number. PI-supplied values were identical to those in the intermediate US GEOTRACES master file.</p>
http://lod.bco-dmo.org/id/dataset-parameter/648703.rdf
Name: lab
Units: text
Description: <p>lab group that analyzed the samples: LDEO=Lamont Doherty Earth Observatory; WHOI=Woods Hole Oceanographic Inst.; UMN=Univ. of Minnesota</p>
http://lod.bco-dmo.org/id/dataset-parameter/648704.rdf
Name: CTDDEPTH
Units: meters
Description: <p>Observation/sample depth in meters; Niskin sample depth calculated from CTD pressure.</p>
http://lod.bco-dmo.org/id/dataset-parameter/648705.rdf
Name: depth_pi
Units: meters
Description: <p>Observation/sample depth in meters as reported by the PI</p>
http://lod.bco-dmo.org/id/dataset-parameter/648706.rdf
Name: GEOTRC_SAMPNO
Units: integer
Description: <p>Unique identifying number for US GEOTRACES samples. PI-supplied values were identical to those in the intermediate US GEOTRACES master file</p>
http://lod.bco-dmo.org/id/dataset-parameter/648707.rdf
Name: CASTNO
Units: integer
Description: <p>Cast identifier numbered consecutively within a station. PI-supplied values were identical to those in the intermediate US GEOTRACES master file.</p>
http://lod.bco-dmo.org/id/dataset-parameter/648708.rdf
Name: BTL_LAT
Units: decimal degrees
Description: <p>Latitude of bottle firing; north is positive. Values were added from the intermediate US GEOTRACES master file (see Processing Description).</p>
http://lod.bco-dmo.org/id/dataset-parameter/648709.rdf
Name: BTL_LON
Units: decimal degrees
Description: <p>Longitude of bottle firing; east is positive. Values were added from the intermediate US GEOTRACES master file (see Processing Description).</p>
http://lod.bco-dmo.org/id/dataset-parameter/648710.rdf
Name: lat_pi
Units: decimal degrees
Description: <p>latitude provided by PI; north is positive</p>
http://lod.bco-dmo.org/id/dataset-parameter/648711.rdf
Name: lon_pi
Units: decimal degrees
Description: <p>longitude provided by PI; east is positive</p>
http://lod.bco-dmo.org/id/dataset-parameter/648712.rdf
Name: GEOTRC_EVENTNO
Units: integer
Description: <p>Unique identifying number for US GEOTRACES sampling event. PI-supplied values were identical to those in the intermediate US GEOTRACES master file.</p>
http://lod.bco-dmo.org/id/dataset-parameter/648713.rdf
Name: SAMPNO
Units: unitless
Description: <p>Sample number; Values were added from the intermediate US GEOTRACES master file (see Processing Description).</p>
http://lod.bco-dmo.org/id/dataset-parameter/648714.rdf
Name: BTLNBR
Units: text-integer
Description: <p>Alphanumeric characters identifying bottle type (e.g. NIS representing Niskin and GF representing GOFLO) and position on a CTD rosette. PI-supplied values were identical to those in the intermediate US GEOTRACES master file.</p>
http://lod.bco-dmo.org/id/dataset-parameter/648715.rdf
Name: BTLNBR_FLAG_W
Units: unitless
Description: <p>Quality flag: 2) ok; 3) questionable; 4) bad analysis; 5) sample lost</p>
http://lod.bco-dmo.org/id/dataset-parameter/648716.rdf
Name: ISO_DATETIME_UTC_START_EVENT
Units: YYYY-mm-ddTHH:MM:SS.ssZ
Description: <p>Event start date/time (UTC) formatted to ISO8601 standard. T indicates start of time string; Z indicates UTC. Calculated from original date and time fields. Values were added from the intermediate US GEOTRACES master file (see Processing Description).</p>
http://lod.bco-dmo.org/id/dataset-parameter/648717.rdf
Name: BTL_ISO_DATETIME_UTC
Units: YYYY-mm-ddTHH:MM:SS.ssZ
Description: <p>Bottle date/time (UTC) formatted to ISO8601 standard. T indicates start of time string; Z indicates UTC. Calculated from original date and time fields. Values were added from the intermediate US GEOTRACES master file (see Processing Description).</p>
http://lod.bco-dmo.org/id/dataset-parameter/648718.rdf
Name: date_collected
Units: yyyymmdd
Description: <p>Date sample collected; UTC. PI-supplied values</p>
http://lod.bco-dmo.org/id/dataset-parameter/648719.rdf
Name: time
Units: hhmm
Description: <p>Time sample collected; UTC. PI-supplied values</p>
http://lod.bco-dmo.org/id/dataset-parameter/648720.rdf
Name: date_dissolved_U_separation
Units: yyyymmdd
Description: <p>Date when dissolved U separated from Th and Pa (used for correcting measured dissolved Th-230 and Pa-231 for ingrowth by decay of dissolved uranium during the time between sample collection and U separation. PI-supplied values.</p>
http://lod.bco-dmo.org/id/dataset-parameter/648721.rdf
Name: Th_232_D_CONC_BOTTLE
Units: pmol/kg
Description: <p>Dissolved Th-232 concentration from CTD bottle sample</p>
http://lod.bco-dmo.org/id/dataset-parameter/648722.rdf
Name: Th_232_D_CONC_BOTTLE_ERR
Units: pmol/kg
Description: <p>1 sigma error in Dissolved Th-232</p>
http://lod.bco-dmo.org/id/dataset-parameter/648723.rdf
Name: Th_232_D_CONC_BOTTLE_FLAG
Units: unitless
Description: <p>Flag for Dissolved Th-232: 1 = good; 2 = questionable; 3 = bad or no data</p>
http://lod.bco-dmo.org/id/dataset-parameter/648724.rdf
Name: Th_230_D_CONC_BOTTLE
Units: uBq/kg
Description: <p>Dissolved Th-230 concentration from CTD bottle sample</p>
http://lod.bco-dmo.org/id/dataset-parameter/648725.rdf
Name: Th_230_D_CONC_BOTTLE_ERR
Units: uBq/kg
Description: <p>1 sigma error in Dissolved Th-230</p>
http://lod.bco-dmo.org/id/dataset-parameter/648726.rdf
Name: Th_230_D_CONC_BOTTLE_FLAG
Units: unitless
Description: <p>Flag for Dissolved Th-230: 1 = good; 2 = questionable; 3 = bad or no data</p>
http://lod.bco-dmo.org/id/dataset-parameter/648727.rdf
Name: Pa_231_D_CONC_BOTTLE
Units: uBq/kg
Description: <p>Dissolved Pa-231 concentration from CTD bottle sample</p>
http://lod.bco-dmo.org/id/dataset-parameter/648728.rdf
Name: Pa_231_D_CONC_BOTTLE_ERR
Units: uBq/kg
Description: <p>1 sigma error in Dissolved Pa-231</p>
http://lod.bco-dmo.org/id/dataset-parameter/648729.rdf
Name: Pa_231_D_CONC_BOTTLE_FLAG
Units: unitless
Description: <p>Flag for Dissolved Pa-231: 1 = good; 2 = questionable; 3 = bad or no data</p>
http://lod.bco-dmo.org/id/dataset-parameter/648730.rdf
Name: Th_230_D_XS_CONC_BOTTLE
Units: uBq/kg
Description: <p>Dissolved Th-230 concentration corrected for the dissolution of lithogenic minerals from CTD bottle sample; thereby isolating the dissolved Th-230 produced by decay of dissolved uranium</p>
http://lod.bco-dmo.org/id/dataset-parameter/648731.rdf
Name: Th_230_D_XS_CONC_BOTTLE_ERR
Units: uBq/kg
Description: <p>Dissolved Th-230 concentration error</p>
http://lod.bco-dmo.org/id/dataset-parameter/648732.rdf
Name: Th_230_D_XS_CONC_BOTTLE_FLAG
Units: unitless
Description: <p>Flag for Dissolved Th-230: 1 = good; 2 = questionable; 3 = bad or no data</p>
http://lod.bco-dmo.org/id/dataset-parameter/648733.rdf
Name: Pa_231_D_XS_CONC_BOTTLE
Units: uBq/kg
Description: <p>Dissolved Pa-231 concentration corrected for the dissolution of lithogenic minerals (see notes for full explanation) from CTD bottle sample</p>
http://lod.bco-dmo.org/id/dataset-parameter/648734.rdf
Name: Pa_231_D_XS_CONC_BOTTLE_ERR
Units: uBq/kg
Description: <p>Dissolved Pa-231 concentration error</p>
http://lod.bco-dmo.org/id/dataset-parameter/648735.rdf
Name: Pa_231_D_XS_CONC_BOTTLE_FLAG
Units: unitless
Description: <p>Flag for Dissolved Pa-231: 1 = good; 2 = questionable; 3 = bad or no data</p>
http://lod.bco-dmo.org/id/dataset-parameter/648736.rdf
Name: Th_232_D_CONC_FISH
Units: pmol/kg
Description: <p>Dissolved Th-232 concentration from Geo-Fish sample</p>
http://lod.bco-dmo.org/id/dataset-parameter/648737.rdf
Name: Th_232_D_CONC_FISH_ERR
Units: pmol/kg
Description: <p>1 sigma error in Dissolved Th-232</p>
http://lod.bco-dmo.org/id/dataset-parameter/648738.rdf
Name: Th_232_D_CONC_FISH_FLAG
Units: unitless
Description: <p>Flag for Dissolved Th-232: 1 = good; 2 = questionable; 3 = bad or no data</p>
http://lod.bco-dmo.org/id/dataset-parameter/648739.rdf
Name: Th_230_D_CONC_FISH
Units: uBq/kg
Description: <p>Dissolved Th-230 concentration from Geo-Fish sample</p>
http://lod.bco-dmo.org/id/dataset-parameter/648740.rdf
Name: Th_230_D_CONC_FISH_ERR
Units: uBq/kg
Description: <p>1 sigma error in Dissolved Th-230</p>
http://lod.bco-dmo.org/id/dataset-parameter/648741.rdf
Name: Th_230_D_CONC_FISH_FLAG
Units: unitless
Description: <p>Flag for Dissolved Th-230: 1 = good; 2 = questionable; 3 = bad or no data</p>
http://lod.bco-dmo.org/id/dataset-parameter/648742.rdf
Name: Pa_231_D_CONC_FISH
Units: uBq/kg
Description: <p>Dissolved Pa-231 concentration from Geo-Fish sample</p>
http://lod.bco-dmo.org/id/dataset-parameter/648743.rdf
Name: Pa_231_D_CONC_FISH_ERR
Units: uBq/kg
Description: <p>1 sigma error in Dissolved Pa-231</p>
http://lod.bco-dmo.org/id/dataset-parameter/648744.rdf
Name: Pa_231_D_CONC_FISH_FLAG
Units: unitless
Description: <p>Flag for Dissolved Pa-231: 1 = good; 2 = questionable; 3 = bad or no data</p>
http://lod.bco-dmo.org/id/dataset-parameter/648745.rdf
Name: Th_230_D_XS_CONC_FISH
Units: uBq/kg
Description: <p>Dissolved Th-230 concentration corrected for the dissolution of lithogenic minerals from Geo-Fish sample; thereby isolating the dissolved Th-230 produced by decay of dissolved uranium</p>
http://lod.bco-dmo.org/id/dataset-parameter/648746.rdf
Name: Th_230_D_XS_CONC_FISH_ERR
Units: uBq/kg
Description: <p>Dissolved Th-230 concentration error</p>
http://lod.bco-dmo.org/id/dataset-parameter/648747.rdf
Name: Th_230_D_XS_CONC_FISH_FLAG
Units: unitless
Description: <p>Flag for Dissolved Th-230: 1 = good; 2 = questionable; 3 = bad or no data</p>
http://lod.bco-dmo.org/id/dataset-parameter/648748.rdf
Name: Pa_231_D_XS_CONC_FISH
Units: uBq/kg
Description: <p>Dissolved Pa-231 concentration corrected for the dissolution of lithogenic minerals (see notes for full explanation) from Geo-Fish sample</p>
http://lod.bco-dmo.org/id/dataset-parameter/648749.rdf
Name: Pa_231_D_XS_CONC_FISH_ERR
Units: uBq/kg
Description: <p>Dissolved Pa-231 concentration error</p>
http://lod.bco-dmo.org/id/dataset-parameter/648750.rdf
Name: Pa_231_D_XS_CONC_FISH_FLAG
Units: unitless
Description: <p>Flag for Dissolved Pa-231: 1 = good; 2 = questionable; 3 = bad or no data</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
131906
https://datadocs.bco-dmo.org/file/g77yqBAuY3wwwD/Th_Pa_diss_joined_fish_botl.csv
Th_Pa_diss_joined_fish_botl.csv
Primary data file for dataset ID 643639
download
https://osprey.bco-dmo.org/dataset/643639/data/download
download
onLine
dataset
<p>See methodology and notes (<a href="http://data.bco-dmo.org/GEOTRACES/Anderson/EPZT_Anderson_Th_Pa_diss_methods.pdf" target="_blank">pdf</a>)</p>
<p><strong>Related References:</strong></p>
<p>Andersen, M.B., Stirling, C.H., Zimmermann, B., Halliday, A.N. (2010) Precise determination of the open ocean 234U/238U composition. Geochem. Geophys. Geosyst. 11, Q12003.</p>
<p>Anderson, R.F., Fleisher, M.Q., Robinson, L.F., Edwards, R.L., Hoff, J., Moran, S.B., Rutgers van der Loeff, M.M., Thomas, A.L., Roy-Barman, M., François, R. (2012) GEOTRACES intercalibration of <sup>230</sup>Th, <sup>232</sup>Th, <sup>231</sup>Pa, and prospects for <sup>10</sup>Be. Limnol. Oceanogr. Methods 10, 179-213.</p>
<p>Auro ME, LF Robinson, A Burke, LI Bradtmiller, MQ Fleisher, RF Anderson (2012) &nbsp;Improvements to 232-thorium, 230-thorium, and 231-protactinium analysis in seawater arising from GEOTRACES intercalibration Limnology and Oceanography, Methods 10, 464-474</p>
<p>Chen, J.H., Lawrence Edwards, R., Wasserburg, G.J. (1986) <sup>238</sup>U, <sup>234</sup>U and <sup>232</sup>Th in seawater. Earth Planet. Sci. Lett. 80, 241-251.</p>
<p>Cheng, H., Edwards, R.L., Hoff, J., Gallup, C.D., Richards, D.A., and Asmerom, Y. (2000)&nbsp; The half-lives of uranium-234 and thorium-230.&nbsp; Chemical Geology 169, 17-33.</p>
<p>Cheng, H., Edwards, R.L., Shen, C.-C., Polyak, V.J., Asmerom, Y., Woodhead, J., Hellstrom, J., Wang, Y.J., Kong, X.G.,&nbsp; Spötl, C., Wang, X.F., and E.Calvin Alexander Jr. (2013) Improvements in <sup>230</sup>Th dating, <sup>230</sup>Th and <sup>234</sup>U half-life values, and U–Th isotopic measurements by multi-collector inductively coupled plasma mass spectrometry. Earth and Planetary Science Letters 371-372, 82-91.</p>
<p>Owens, S.A., Buesseler, K.O., Sims, K.W.W. (2011) Re-evaluating the 238U-salinity relationship in seawater: Implications for the 238U–234Th disequilibrium method. Marine Chemistry 127, 31-39.&nbsp;Rev. Geophys. 33 (2), 241–265.</p>
<p>Roy-Barman, M., Coppola, L. and Souhaut, M. (2002) Thorium isotopes in the western Mediterranean Sea: an insight into the marine particle dynamics. Earth Planet. Sci. Lett. 196, 161-174.</p>
<p>Shen, C.-C., Cheng, H., Edwards, R.L., Thomas, R.B. and Moran, S.B. (2003)&nbsp; Attogram-sized <sup>231</sup>Pa Analysis in Dissolved and Particulate fractions of Seawater by Thermal Ionization Mass Spectroscopy.&nbsp; Analytical Chemistry v. 75, issue 5, 1075-1079.</p>
<p>Shen, C.-C., Edwards, R.L., Cheng, H., Dorale, J.A., Thomas, R.B., Moran, S.B., Weinstein, S., and Edmonds, H.N. (2002)&nbsp; Uranium and thorium isotopic and concentration measurements by magnetic sector inductively coupled plasma mass spectrometry.&nbsp; Chemical Geology 185. no. 3-4, 165-178.</p>
<p>Shen, C.C., Wu, C.C., Cheng, H., Edwards, R.L., Hsieh, Y.T., Gallet, S., Chang, C.C., Li, T.Y., Lam, D.D., Kano, A, Hori, M. and Spotl, C. (2012) High-precision and high-resolution carbonate Th-230 dating by MC-ICP-MS with SEM protocols. Geochimica Cosmochim. Acta 99, 71-86.&nbsp; DOI: 10.1016/j.gca.2012.09.018</p>
<p>Taylor, S.R., McLennan, S.M., (1995) The geochemical evolution of the continental crust.</p>
<p>Weyer, S., Anbar, A.D., Gerdes, A., Gordon, G.W., Algeo, T.J., Boyle, E.A. (2008). Natural fractionation of 238U/235U. Geochim. Cosmochim. Acta 72, 345-359.</p>
Specified by the Principal Investigator(s)
<p><strong>BCO-DMO Processing:</strong></p>
<p>- added conventional header with dataset name, PI name, version date<br />
- renamed parameters to BCO-DMO and BODC standards<br />
- split the FISH and BOTTLE data into separate columns as per GEOTRACES Parameter Naming Conventions<br />
- commented out duplicate lines and changed version from 2016-06-13 to 2016-11-21<br />
- version 2016-11-22: expanded Th_232_D_CONC_BOTTLE and Th_232_D_CONC_BOTTLE_ERR precision from 3 to 5 places<br />
- version 2017-01-31: expanded Th_232_D_CONC_FISH and Th_232_D_CONC_FISH_ERR precision from 3 to 5 places and changed values of Th_232_D_CONC_BOTTLE and Th_232_D_CONC_BOTTLE_ERR to nd for samples collected by FISH.</p>
<p><strong>Additional GEOTRACES Processing:</strong></p>
<p>As was done for the GEOTRACES-NAT data, BCO-DMO added standard US GEOTRACES information, such as the US GEOTRACES event number, to each submitted dataset lacking this information. To accomplish this, BCO-DMO compiled a 'master' dataset composed of the following parameters:</p>
<p>cruise_id, EXPOCODE,SECT_ID, STNNBR, CASTNO, GEOTRC_EVENTNO, GEOTRC_SAMPNO, GEOTRC_INSTR, SAMPNO, GF_NO, BTLNBR, BTLNBR_FLAG_W, DATE_START_EVENT, TIME_START_EVENT, ISO_DATETIME_UTC_START_EVENT, EVENT_LAT, EVENT_LON, DEPTH_MIN, DEPTH_MAX, &nbsp;BTL_DATE, BTL_TIME, BTL_ISO_DATETIME_UTC, BTL_LAT, BTL_LON, ODF_CTDPRS, SMDEPTH, FMDEPTH, BTMDEPTH, CTDPRS, CTDDEPTH.</p>
<p>This added information will facilitate subsequent analysis and inter comparison of the datasets.</p>
<p>Bottle parameters in the master file were taken from the GT-C_Bottle and ODF_Bottle datasets. Non-bottle parameters, including those from GeoFish tows, Aerosol sampling, and McLane Pumps, were taken from the TN303 Event Log (version 30 Oct 2014). Where applicable, pump information was taken from the PUMP_Nuts_Sals dataset.</p>
<p>A standardized BCO-DMO method (called "join") was then used to merge the missing parameters to each US GEOTRACES dataset, most often by matching on sample_GEOTRC or on some unique combination of other parameters.</p>
<p>If the master parameters were included in the original data file and the values did not differ from the master file, the original data columns were retained and the names of the parameters were changed from the PI-submitted names to the standardized master names. If there were differences between the PI-supplied parameter values and those in the master file, both columns were retained. If the original data submission included all of the master parameters, no additional columns were added, but parameter names were modified to match the naming conventions of the master file.</p>
<p>See the dataset parameters documentation for a description of which parameters were supplied by the PI and which were added via the join method.</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
PI Supplied Instrument Name: PI Supplied Instrument Description:Sea-Bird Electronics CTD carousel fitted with 12 30-liter PVC Niskin bottles, maintained and operated by the Ocean Data Facility of Scripps Institution of Oceangraphy. The carousel was lowered from the ship with steel wire. Niskin bottles were equipped with nylon-coated closure springs and Viton O-rings. Instrument Name: CTD Sea-Bird Instrument Short Name:CTD Sea-Bird Instrument Description: A Conductivity, Temperature, Depth (CTD) sensor package from SeaBird Electronics. This instrument designation is used when specific make and model are not known or when a more specific term is not available in the BCO-DMO vocabulary. Refer to the dataset-specific metadata for more information about the specific CTD used. More information from: http://www.seabird.com/ Community Standard Description: http://vocab.nerc.ac.uk/collection/L05/current/130/
PI Supplied Instrument Name: Instrument Name: GeoFish Towed near-Surface Sampler Instrument Short Name:GeoFish Instrument Description: The GeoFish towed sampler is a custom designed near surface (2 meters or less) sampling system for the collection of trace metal clean seawater. It consists of a PVC encapsulated lead weighted torpedo and separate PVC depressor vane supporting the intake utilizing all PFA Teflon tubing connected to a deck mounted, air-driven, PFA Teflon dual-diaphragm pump which provides trace-metal clean seawater at up to 3.7L/min. The GeoFish is towed at up to 13kts off to the side of the vessel outside of the ship's wake to avoid possible contamination from the ship's hull. It was developed by Geoffrey Smith and Ken Bruland (University of California, Santa Cruz). Community Standard Description: http://vocab.nerc.ac.uk/collection/L05/current/31/
PI Supplied Instrument Name: PI Supplied Instrument Description:Thermo-Finnegan ELEMENT XR Single Collector Magnetic Sector ICP-MS, equipped with a high performance Interface pump (Jet Pump), and specially-designed sample (X) and skimmer (Jet) cones to ensure the highest possible sensitivity. Instrument Name: Inductively Coupled Plasma Mass Spectrometer Instrument Short Name:ICP Mass Spec Instrument Description: An ICP Mass Spec is an instrument that passes nebulized samples into an inductively-coupled gas plasma (8-10000 K) where they are atomized and ionized. Ions of specific mass-to-charge ratios are quantified in a quadrupole mass spectrometer. Community Standard Description: http://vocab.nerc.ac.uk/collection/L05/current/LAB15/
PI Supplied Instrument Name: PI Supplied Instrument Description:Twelve 30-liter PVC Niskin bottles, maintained and operated by the Ocean Data Facility of Scripps Institution of Oceangraphy. 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/
Cruise: TN303
TN303
R/V Thomas G. Thompson
Community Standard Description
International Council for the Exploration of the Sea
R/V Thomas G. Thompson
vessel
TN303
James W. Moffett
University of Southern California
http://dmoserv3.whoi.edu/data_docs/GEOTRACES/EPZT/GT13_EPZT_ODFReport_All.pdf
Report describing TN303
R/V Thomas G. Thompson
Community Standard Description
International Council for the Exploration of the Sea
R/V Thomas G. Thompson
vessel