http://lod.bco-dmo.org/id/dataset/646143
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
2016-05-19
ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data
ISO 19115-2:2009(E)
Particulate Acid-Volatile Sulfide (pAVS) and elemental selenium (pSe) concentrations from a McLane pump collected during the R/V Thomas G. Thompson cruise TN303 from Peru to Tahiti in 2013 (U.S. GEOTRACES EPZT project)
2016-06-03
publication
2016-06-03
revision
Marine Biological Laboratory/Woods Hole Oceanographic Institution Library (MBLWHOI DLA)
2020-04-16
publication
https://doi.org/10.26008/1912/bco-dmo.646143.1
Gregory A. Cutter
Old Dominion 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: Cutter, G. (2020) Particulate Acid-Volatile Sulfide (pAVS) and elemental selenium (pSe) concentrations from a McLane pump collected during the R/V Thomas G. Thompson cruise TN303 from Peru to Tahiti in 2013 (U.S. GEOTRACES EPZT project). Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version 1) Version Date 2016-06-03 [if applicable, indicate subset used]. doi:10.26008/1912/bco-dmo.646143.1 [access date]
Particulate Acid-Volatile Sulfide (pAVS) and elemental Selenium (pSe) depth profiles from McLane pump Dataset Description: <p>Data for the concentrations of&nbsp;Particulate Acid-Volatile Sulfide (pAVS)&nbsp;(0.8 mm) in depth profiles from in situ McLane pumps at GEOTRACES EPZT Stations 1-5, 7,&nbsp;9, 11, 13, 17, 18, 20, 21, and 23.</p>
<p><strong>DMO notes:</strong></p>
<ul>
<li>changed -9999 values in SAMPNO to nd</li>
<li>added zeros to pad EVENT_LAT and EVENT_LON where decimal places were not 5 places like most of the dataset.</li>
<li>orginal name pAVS and&nbsp;pSe(0) changed to conform to GEOTRACES conventions</li>
</ul> Methods and Sampling: <p>Samples analyzed for acid-volatile sulfides (AVS) were collected on McLane pumps suspended from a trace metal wire (Hytrel-jacketed Vectran). Pumps filtered for four hours, flowing first over a 51-µm polyester pre-filter, then over paired 0.8-µm pore-size, 142-mm Supor polyethersulfone filters. A small portion of the top Supor filter, representing ~2% of the filter area (0.8-51 µm size-fraction material), was sub-sectioned into polyethylene vials and frozen at -85˚C until shipboard AVS analysis, described below. Filter blanks were held within identical filter housings and submerged on one of the deeper pumps on each cast, but were not actively filtered through. Blanks were handled identically to samples during processing, which was conducted in a HEPA-filtered environment using trace metal procedures.</p>
<p>Particulate elemental samples were collected using McLane in situ pumps (P. Lam, UCSC) with splits (section) from a 0.8 µm Supor filter processed immediately in a N<sub>2</sub>-purged glove bag after collection and pump recovery; filter splits were placed and sealed in Tedlar bags and stored at -80°C until analysis. Particulate elemental selenium concentrations were determined using a sulfite leach following Velinsky and Cutter (1990) and analyzed like selenite+selenate following Cutter (1978).&nbsp; Precision was ca. 10% RSD (n=3).&nbsp;</p>
Funding provided by NSF Division of Ocean Sciences (NSF OCE) Award Number: OCE-1235328 Award URL: https://www.nsf.gov/awardsearch/show-award?AWD_ID=1235328
completed
Gregory A. Cutter
Old Dominion University
757-683-4929
Department of Ocean, Earth, and Atmospheric Sciences 4500 Elkhorn Ave
Norfolk
VA
23529-0276
USA
gcutter@odu.edu
pointOfContact
asNeeded
Dataset Version: 1
Unknown
cruise_id
GEOTRC_EVENTNO
CASTNO
DATE_START_EVENT
ISO_DATETIME_UTC_START_EVENT
EVENT_LAT
GEOTRC_SAMPNO
SAMPNO
STNNBR
EXPOCODE
SECT_ID
TIME_START_EVENT
DEPTH_MIN
DEPTH_MAX
depth_n
AVS_TP_CONC_PUMP
Se_0_TP_CONC_PUMP
EVENT_LON
GEOTRC_INSTR
Gas chromatograph
McLane pumps
theme
None, User defined
Cruise identfier
event
cast
date_start
ISO_DateTime_UTC
latitude
sample identification
station
EXPOCODE
cruise name
time_start
depth_min
depth_max
depth nominal
trace element concentration
longitude
instrument
featureType
BCO-DMO Standard Parameters
Gas Chromatograph
McLane Pump
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
US GEOTRACES Pacific section: Characterizing the redox environment of the eastern tropical Pacific Ocean
https://osprey.bco-dmo.org/project/647929
US GEOTRACES Pacific section: Characterizing the redox environment of the eastern tropical Pacific Ocean
<p><em>Extracted from the NSF award abstract:</em></p>
<p>The 2013 GEOTRACES Eastern Pacific Zonal Transect from Peru to Tahiti will cross an entensive oxygen deficient zone typically described as "suboxic"; however, measurements of sulfate reduction in this region suggest it may have some anoxic characteristics due to the presence of free sulfide. Redox conditions influence the solubility/stability of many trace elements which in turn affects their vertical and horizontal transport. A scientist from Old Dominion University plans to analyze water samples collected during the cruise for dissolved iodate/iodide, arsenic [As(III)/As(V)], selenium [Se(IV, VI), particulate Se(0), and nano- to picomolar hydrogen sulfide speciation (total, free/uncomplexed). These measurements, along with nitrate/nitrite, nitrous oxide, and iron species determined by other participants during the cruise, will be used to constrain the range of redox conditions within the oxygen deficient zone, assess the importance of in-situ reduction versus horizontal advection of the redox species, and the changing redox conditions within the hydrothermal plume of the East Pacific Rise. Availability of this data will also enable other researchers to determine the behavior of other redox sensitive trace elements in the ocean.</p>
EPZT_Redox_Elements
largerWorkCitation
project
eng; USA
oceans
Eastern Tropical Pacific - Transect from Peru to Tahiti
-120.00217
-77.376
-16.00058
-11.99933
2013-10-29
2013-11-29
From projects that focused on the following 2 locations: 1. Eastern Tropical Pacific - Transect from Peru to Tahiti (GP16) 2. Eastern Pacific
0
BCO-DMO catalogue of parameters from Particulate Acid-Volatile Sulfide (pAVS) and elemental selenium (pSe) concentrations from a McLane pump collected during the R/V Thomas G. Thompson cruise TN303 from Peru to Tahiti in 2013 (U.S. GEOTRACES EPZT 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/646248.rdf
Name: cruise_id
Units: unitless
Description: <p>Cruise identifier. TN = R/V Thomas G. Thompson.</p>
http://lod.bco-dmo.org/id/dataset-parameter/646250.rdf
Name: GEOTRC_EVENTNO
Units: unitless
Description: <p>GEOTRACES event number.</p>
http://lod.bco-dmo.org/id/dataset-parameter/646252.rdf
Name: CASTNO
Units: unitless
Description: <p>Cast number.</p>
http://lod.bco-dmo.org/id/dataset-parameter/646253.rdf
Name: DATE_START_EVENT
Units: unitless
Description: <p>Date at the start of the event, according to the event log. in the format YYYYmmdd</p>
http://lod.bco-dmo.org/id/dataset-parameter/646255.rdf
Name: ISO_DATETIME_UTC_START_EVENT
Units: unitless
Description: <p>Date and time (UTC) at start of the event, formatted to ISO 8601 standard, according to the event log. Format is YYYY-mm-ddTHH:MM:SS.xxZ.</p>
http://lod.bco-dmo.org/id/dataset-parameter/646256.rdf
Name: EVENT_LAT
Units: decimal degrees
Description: <p>Latitude at the start of the event, according to the event log.</p>
http://lod.bco-dmo.org/id/dataset-parameter/646258.rdf
Name: GEOTRC_SAMPNO
Units: unitless
Description: <p>GEOTRACES sample number.</p>
http://lod.bco-dmo.org/id/dataset-parameter/646261.rdf
Name: SAMPNO
Units: unitless
Description: <p>Bottle sample number, according to PI.</p>
http://lod.bco-dmo.org/id/dataset-parameter/646273.rdf
Name: STNNBR
Units: unitless
Description: <p>Station number.</p>
http://lod.bco-dmo.org/id/dataset-parameter/646296.rdf
Name: EXPOCODE
Units: unitless
Description: <p>Used as a unique identifier for a cruise. Usual generation formula is ICES 4 character platform code then the cruise departure date in YYYYMDD format</p>
http://lod.bco-dmo.org/id/dataset-parameter/646297.rdf
Name: SECT_ID
Units: unitless
Description: <p>GEOTRACES cruise name.</p>
http://lod.bco-dmo.org/id/dataset-parameter/646298.rdf
Name: TIME_START_EVENT
Units: unitless
Description: <p>Time at the start of the event according to the event log</p>
http://lod.bco-dmo.org/id/dataset-parameter/646299.rdf
Name: DEPTH_MIN
Units: meters
Description: <p>event depth minimum</p>
http://lod.bco-dmo.org/id/dataset-parameter/646300.rdf
Name: DEPTH_MAX
Units: meters
Description: <p>event depth maxium</p>
http://lod.bco-dmo.org/id/dataset-parameter/646301.rdf
Name: depth_n
Units: meters
Description: <p>nominal depth</p>
http://lod.bco-dmo.org/id/dataset-parameter/646302.rdf
Name: AVS_TP_CONC_PUMP
Units: picomoles per liter
Description: <p>particulate acid volatile sulfide</p>
http://lod.bco-dmo.org/id/dataset-parameter/646303.rdf
Name: Se_0_TP_CONC_PUMP
Units: nanomoles per liter
Description: <p>particulate elemental selenium</p>
http://lod.bco-dmo.org/id/dataset-parameter/646305.rdf
Name: EVENT_LON
Units: decimal degrees
Description: <p>Longitude according to the event log; West is negative</p>
http://lod.bco-dmo.org/id/dataset-parameter/809595.rdf
Name: GEOTRC_INSTR
Units: unitless
Description: <p>Instrument</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
29659
https://darchive.mblwhoilibrary.org/bitstream/1912/25653/1/dataset-646143_gp16-elemental-selenium-and-particulate-acid-volatile-sulfide__v1.tsv
download
https://doi.org/10.26008/1912/bco-dmo.646143.1
download
onLine
dataset
<p>Samples analyzed for acid-volatile sulfides (AVS) were collected on McLane pumps suspended from a trace metal wire (Hytrel-jacketed Vectran). Pumps filtered for four hours, flowing first over a 51-µm polyester pre-filter, then over paired 0.8-µm pore-size, 142-mm Supor polyethersulfone filters. A small portion of the top Supor filter, representing ~2% of the filter area (0.8-51 µm size-fraction material), was sub-sectioned into polyethylene vials and frozen at -85˚C until shipboard AVS analysis, described below. Filter blanks were held within identical filter housings and submerged on one of the deeper pumps on each cast, but were not actively filtered through. Blanks were handled identically to samples during processing, which was conducted in a HEPA-filtered environment using trace metal procedures.</p>
<p>Particulate elemental samples were collected using McLane in situ pumps (P. Lam, UCSC) with splits (section) from a 0.8 µm Supor filter processed immediately in a N<sub>2</sub>-purged glove bag after collection and pump recovery; filter splits were placed and sealed in Tedlar bags and stored at -80°C until analysis. Particulate elemental selenium concentrations were determined using a sulfite leach following Velinsky and Cutter (1990) and analyzed like selenite+selenate following Cutter (1978).&nbsp; Precision was ca. 10% RSD (n=3).&nbsp;</p>
Specified by the Principal Investigator(s)
<p>Samples analyzed in triplicate and means computed. Standard additions of selenite were used for daily calibration on a representative sample and its slope applied to subsequent samples.</p>
<p>Determinations of acid-volatile sulfide (AVS) were made on-board ship and used the method of Cutter and Oatts (Cutter and Oatts, 1987) that includes acidification, gas stripping and cryogenic trapping/preconcentration of the generated hydrogen sulfide. In this case, the filter slice was placed in a glass stripping vessel, 10 mL of deionized water added, and the stripper purged with He. The cryogenic trap was then immersed in liquid nitrogen, 10mL of 1M HCl added through a septum in the stripping vessel and the evolved and trapped hydrogen sulfide was then quantified using the gas chromatography/flame photometric detection method of Radford-Knoery and Cutter (Radford-Knoery and Cutter, 1993). The system was calibrated with hydrogen sulfide from a permeation tube (calibrated diffusion rate) and assuming a filtration volume of at least 5L (median sample volume: 7.9L), the detection limit was 0.2 pmol/L. It should be noted that AVS determined by this method includes monosulfides of iron, zinc, and nickel, but not those with copper or mercury, or mixed oxidation state sulfides such as greigite or pyrite (Cutter and Oatts, 1987; Radford-Knoery and Cutter, 1993).</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
Gas chromatograph
Gas chromatograph
PI Supplied Instrument Name: Gas chromatograph PI Supplied Instrument Description:Gas chromatograph/flame photometric ionizer Instrument Name: Gas Chromatograph Instrument Short Name:Gas Chromatograph Instrument Description: Instrument separating gases, volatile substances, or substances dissolved in a volatile solvent by transporting an inert gas through a column packed with a sorbent to a detector for assay. (from SeaDataNet, BODC) Community Standard Description: http://vocab.nerc.ac.uk/collection/L05/current/LAB02/
McLane pumps
McLane pumps
PI Supplied Instrument Name: McLane pumps PI Supplied Instrument Description:In the data, McLane pumps are called "McL-Prof." Instrument Name: McLane Pump Instrument Short Name:McLane Pump Instrument Description: McLane pumps sample large volumes of seawater at depth. They are attached to a wire and lowered to different depths in the ocean. As the water is pumped through the filter, particles suspended in the ocean are collected on the filters. The pumps are then retrieved and the contents of the filters are analyzed in a lab.
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