http://lod.bco-dmo.org/id/dataset/939225
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
2024-10-02
ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data
ISO 19115-2:2009(E)
Dissolved gallium (Ga) from the US GEOTRACES GP17-OCE cruise on R/V Roger Revelle (RR2214) in the South Pacific and Southern Oceans from December 2022 to January 2023
2024-11-20
publication
2024-11-20
revision
Marine Biological Laboratory/Woods Hole Oceanographic Institution Library (MBLWHOI DLA)
2024-11-21
publication
https://doi.org/10.26008/1912/bco-dmo.939225.1
Alan M. Shiller
University of Southern Mississippi
principalInvestigator
Melissa Gilbert
University of Southern Mississippi
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: Shiller, A. M., Gilbert, M. (2024) Dissolved gallium (Ga) from the US GEOTRACES GP17-OCE cruise on R/V Roger Revelle (RR2214) in the South Pacific and Southern Oceans from December 2022 to January 2023. Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version 1) Version Date 2024-11-20 [if applicable, indicate subset used]. doi:10.26008/1912/bco-dmo.939225.1 [access date]
GP17-OCE Dissolved Gallium in the South Pacific Ocean Dataset Description: Methods and Sampling: <p>Clean seawater samples were collected using a GEOTRACES CTD referred to as GT-C/12L GoFlo, and also from the Super-GeoFISH towed surface vehicle. For more information, see the GP17-OCE cruise report.</p>
<p>Water samples were filtered through pre-cleaned, 0.2-micrometer (µm) Pall Acropak Supor filter capsules as described elsewhere (e.g., Cutter et al., 2014; Hatta et al., 2015). Filtered water was collected in 125-milliliter (mL) HDPE bottles (Nalgene) that had been precleaned by soaking in hot 1.2 M HCl (reagent grade) for at least 8 hours with subsequent thorough rinsing with ultrapure distilled deionized water (Barnstead E-pure).</p>
<p>Dissolved gallium (Ga) was determined by isotope dilution ICP-MS using a ThermoFisher Element XR operated in low resolution (Gilbert et al., 2023). Samples (20-30 mL) were concentrated using a SeaFAST system; a dilute HF rinse was used for column cleaning between samples. An enriched isotope spike of known concentration was prepared using purified enriched 71Ga (99.8%), obtained from Oak Ridge National Laboratories. The substantial sample pre-concentration of this method allows for ICP-MS analysis using medium resolution which eliminates isobaric interferences including doubly charged 138Ba with 69Ga.</p>
<p>The reagent blank contribution to the dissolved Ga analysis is typically 0.6 picomoles per kilogram (pmol/kg) and the detection limit (based on 3 times the standard deviation of the blank) is 0.3 pmol/kg. Repeated runs of US GEOTRACES intercalibration samples (GS and GD), in-house reference solutions, and cast overlap samples suggest a precision of ± 4%; the limit of detection for Ga was 1.5 pmol/kg. Recovery of the method, as determined by repeated analysis of a spiked and unspiked seawater sample was 100 ± 7%.</p>
<p>See attached Intercalibration Report for additional information.</p>
Funding provided by NSF Division of Ocean Sciences (NSF OCE) Award Number: OCE-1925503 Award URL: https://www.nsf.gov/awardsearch/show-award?AWD_ID=1925503
completed
Alan M. Shiller
University of Southern Mississippi
985-640-4580
USA
shilleram@gmail.com
pointOfContact
Melissa Gilbert
University of Southern Mississippi
228-688-7093
1020 Balch Blvd.
Stennis Space Center
MS
USA
melissa.gilbert@usm.edu
pointOfContact
asNeeded
Dataset Version: 1
Unknown
Station_ID
Event_ID
Start_ISO_DateTime_UTC
Start_Date_UTC
Start_Time_UTC
Start_Latitude
Start_Longitude
Rosette_Position
Sample_ID
Sample_Depth
Ga_D_CONC_BOTTLE_hxhmr3
SD1_Ga_D_CONC_BOTTLE_hxhmr3
Flag_Ga_D_CONC_BOTTLE_hxhmr3
Ga_D_CONC_FISH_dhewdf
SD1_Ga_D_CONC_FISH_dhewdf
Flag_Ga_D_CONC_FISH_dhewdf
Super-GeoFISH towed surface vehicle
GO-FLO Bottle
ThermoFisher Element XR
SeaFAST system
theme
None, User defined
station
event
ISO_DateTime_UTC
date
time of day
latitude
longitude
bottle
sample identification
depth
Gallium
quality flag
featureType
BCO-DMO Standard Parameters
GeoFish Towed near-Surface Sampler
GO-FLO Bottle
Inductively Coupled Plasma Mass Spectrometer
SeaFAST Automated Preconcentration System
instrument
BCO-DMO Standard Instruments
RR2214
service
Deployment Activity
Papeete, Tahiti to Punta Arenas, Chile
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
US GEOTRACES GP17 Section: South Pacific and Southern Ocean (GP17-OCE)
http://www.geotraces.org/
US GEOTRACES GP17 Section: South Pacific and Southern Ocean (GP17-OCE)
<p>The U.S. GEOTRACES GP17-OCE expedition departed Papeete, Tahiti (French Polynesia) on December 1st, 2022 and arrived in Punta Arenas, Chile on January 25th, 2023. The cruise took place in the South Pacific and Southern Oceans aboard the R/V Roger Revelle (cruise ID RR2214) with a team of 34 scientists lead by Ben Twining (Chief Scientist), Jessica Fitzsimmons and Greg Cutter (Co-Chief Scientists). GP17 was planned as a two-leg expedition, with its first leg (GP17-OCE) as a southward extension of the 2018 GP15 Alaska-Tahiti expedition and a second leg (GP17-ANT; December 2023-January 2024) into coastal and shelf waters of Antarctica's Amundsen Sea.</p>
<p>The South Pacific and Southern Oceans sampled by GP17-OCE play critical roles in global water mass circulation and associated global transfer of heat, carbon, and nutrients. Specific oceanographic regions of interest for GP17-OCE included: the most oligotrophic gyre in the global ocean, the Antarctic Circumpolar Current (ACC) frontal region, the previously unexplored Pacific- Antarctic Ridge, the Pacific Deep Water (PDW) flow along the continental slope of South America, and the continental margin inputs potentially emanating from South America.</p>
<p>Further information is available on the <a href="https://usgeotraces.ldeo.columbia.edu/content/gp17-oce" target="_blank">US GEOTRACES website</a> and in the <a href="https://www.bodc.ac.uk/resources/inventories/cruise_inventory/reports/rogerrevelle_rr2214.pdf" target="_blank">cruise report</a> (PDF).</p>
<p><em>NSF Project Title:</em> Collaborative Research: Management and Implementation of US GEOTRACES GP17 Section: South Pacific and Southern Ocean (GP17-OCE)</p>
<p><em>NSF Award Abstract:</em><br />
This award will support the management and implementation of a research expedition from Tahiti to Chile that will enable sampling for a broad suite of trace elements and isotopes (TEI) across oceanographic regions of importance to global nutrient and carbon cycling as part of the U.S. GEOTRACES program. GEOTRACES is a global effort in the field of Chemical Oceanography, the goal of which is to understand the distributions of trace elements and their isotopes in the ocean. Determining the distributions of these elements and isotopes will increase understanding of processes that shape their distributions, such as ocean currents and material fluxes, and also the processes that depend on these elements, such as the growth of phytoplankton and the support of ocean ecosystems. The proposed cruise will cross the South Pacific Gyre, the Antarctic Circumpolar Current, iron-limited Antarctic waters, and the Chilean margin. In combination with a proposed companion GEOTRACES expedition on a research icebreaker (GP17-ANT) that will be joined by two overlapping stations, the team of investigators will create an ocean section from the ocean's most nutrient-poor waters to its highly-productive Antarctic polar region - a region that plays an outsized role in modulating the global carbon cycle. The expedition will support and provide management infrastructure for additional participating science projects focused on measuring specific external fluxes and internal cycling of TEIs along this section.</p>
<p>The South Pacific Gyre and Pacific sector of the Southern Ocean play critical roles in global water mass circulation and associated global transfer of heat, carbon, and nutrients, but they are chronically understudied for TEIs due to their remote locale. These are regions of strong, dynamic fronts where sub-surface water masses upwell and subduct, and biological and chemical processes in these zones determine nutrient stoichiometries and tracer concentrations in waters exported to lower latitudes. The Pacific sector represents an end member of extremely low external TEI surface fluxes and thus an important region to constrain inputs from the rapidly-changing Antarctic continent. Compared to other ocean basins, TEI cycling in these regions is thought to be dominated by internal cycling processes such as biological uptake, regeneration, and scavenging, and these are poorly represented in global ocean models. The cruise will enable funded investigators to address research questions such as: 1) what are relative rates of external TEI fluxes to this region, including dust, sediment, hydrothermal, and cryospheric fluxes? 2) What are the (micro) nutrient regimes that support productivity, and what impacts do biomass accumulation, export, and regeneration have on TEI cycling and stoichiometries of exported material? 3) What are TEI and nutrient stoichiometries of subducting water masses, and how do scavenging and regeneration impact these during transport northward? This management project has several objectives: 1) plan and coordinate a 55-day research cruise in 2021-2022; 2) use both conventional and trace-metal 'clean' sampling systems to obtain TEI samples, as well as facilitate sampling for atmospheric aerosols and large volume particles and radionuclides; 3) acquire hydrographic data and samples for salinity, dissolved oxygen, algal pigments, and macro-nutrients; and deliver these data to relevant repositories; 4) ensure that proper QA/QC protocols, as well as GEOTRACES intercalibration protocols, are followed and reported; 5) prepare the final cruise report to be posted with data; 6) coordinate between all funded cruise investigators, as well as with leaders of proposed GP17-ANT cruise; and 7) conduct broader impact efforts that will engage the public in oceanographic research using immersive technology. The motivations for and at-sea challenges of this work will be communicated to the general public through creation of immersive 360/Virtual Reality experiences, via a collaboration with the Texas A&M University Visualization LIVE Lab. Through Virtual Reality, users will experience firsthand what life and TEI data collection at sea entail. Virtual reality/digital games and 360° experiences will be distributed through GEOTRACES outreach websites, through PI engagement with local schools, libraries, STEM summer camps, and adult service organizations, and through a collaboration with the National Academy of Sciences.</p>
GP17-OCE
largerWorkCitation
project
eng; USA
oceans
Papeete, Tahiti to Punta Arenas, Chile
-152.00026
-75.09712
-67.00022
-19.99986
2022-12-03
2023-01-24
Papeete, Tahiti to Punta Arenas, Chile
0
BCO-DMO catalogue of parameters from Dissolved gallium (Ga) from the US GEOTRACES GP17-OCE cruise on R/V Roger Revelle (RR2214) in the South Pacific and Southern Oceans from December 2022 to January 2023
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/939238.rdf
Name: Station_ID
Units: unitless
Description: <p>Station ID number</p>
http://lod.bco-dmo.org/id/dataset-parameter/939239.rdf
Name: Event_ID
Units: unitless
Description: <p>Event ID number</p>
http://lod.bco-dmo.org/id/dataset-parameter/939240.rdf
Name: Start_ISO_DateTime_UTC
Units: unitless
Description: <p>Date and time (UTC) when event started in ISO 8601 format</p>
http://lod.bco-dmo.org/id/dataset-parameter/939241.rdf
Name: Start_Date_UTC
Units: unitless
Description: <p>Date when event started</p>
http://lod.bco-dmo.org/id/dataset-parameter/939242.rdf
Name: Start_Time_UTC
Units: unitless
Description: <p>Time (UTC) when event started</p>
http://lod.bco-dmo.org/id/dataset-parameter/939243.rdf
Name: Start_Latitude
Units: decimal degrees
Description: <p>Latitude when event started, S is negative</p>
http://lod.bco-dmo.org/id/dataset-parameter/939244.rdf
Name: Start_Longitude
Units: decimal degrees
Description: <p>Longitude when event ended, W is negative</p>
http://lod.bco-dmo.org/id/dataset-parameter/939245.rdf
Name: Rosette_Position
Units: unitless
Description: <p>Position of bottle on rosette from which sample was drawn</p>
http://lod.bco-dmo.org/id/dataset-parameter/939246.rdf
Name: Sample_ID
Units: unitless
Description: <p>GEOTRACES Sample ID</p>
http://lod.bco-dmo.org/id/dataset-parameter/939247.rdf
Name: Sample_Depth
Units: meters (m)
Description: <p>Depth of sample in water column</p>
http://lod.bco-dmo.org/id/dataset-parameter/939248.rdf
Name: Ga_D_CONC_BOTTLE_hxhmr3
Units: picomoles per kilogram (pmol/kg)
Description: <p>Concentration of dissolved Ga from bottle samples</p>
http://lod.bco-dmo.org/id/dataset-parameter/939249.rdf
Name: SD1_Ga_D_CONC_BOTTLE_hxhmr3
Units: picomoles per kilogram (pmol/kg)
Description: <p>Standard deviation of Ga_D_CONC_BOTTLE_hxhmr3</p>
http://lod.bco-dmo.org/id/dataset-parameter/939250.rdf
Name: Flag_Ga_D_CONC_BOTTLE_hxhmr3
Units: unitless
Description: <p>SeaDataNet quality flag for Ga_D_CONC_BOTTLE_hxhmr3</p>
http://lod.bco-dmo.org/id/dataset-parameter/939251.rdf
Name: Ga_D_CONC_FISH_dhewdf
Units: picomoles per kilogram (pmol/kg)
Description: <p>Concentration of dissolved Ga from Super-GeoFISH samples</p>
http://lod.bco-dmo.org/id/dataset-parameter/939252.rdf
Name: SD1_Ga_D_CONC_FISH_dhewdf
Units: picomoles per kilogram (pmol/kg)
Description: <p>Standard deviation of Ga_D_CONC_FISH_dhewdf</p>
http://lod.bco-dmo.org/id/dataset-parameter/939253.rdf
Name: Flag_Ga_D_CONC_FISH_dhewdf
Units: unitless
Description: <p>SeaDataNet quality flag for Ga_D_CONC_FISH_dhewdf</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
63347
https://darchive.mblwhoilibrary.org/server/api/core/bitstreams/f387a17f-0bd3-4dba-9774-e12a3630bc5a/content
download
https://doi.org/10.26008/1912/bco-dmo.939225.1
download
onLine
dataset
<p>Clean seawater samples were collected using a GEOTRACES CTD referred to as GT-C/12L GoFlo, and also from the Super-GeoFISH towed surface vehicle. For more information, see the GP17-OCE cruise report.</p>
<p>Water samples were filtered through pre-cleaned, 0.2-micrometer (µm) Pall Acropak Supor filter capsules as described elsewhere (e.g., Cutter et al., 2014; Hatta et al., 2015). Filtered water was collected in 125-milliliter (mL) HDPE bottles (Nalgene) that had been precleaned by soaking in hot 1.2 M HCl (reagent grade) for at least 8 hours with subsequent thorough rinsing with ultrapure distilled deionized water (Barnstead E-pure).</p>
<p>Dissolved gallium (Ga) was determined by isotope dilution ICP-MS using a ThermoFisher Element XR operated in low resolution (Gilbert et al., 2023). Samples (20-30 mL) were concentrated using a SeaFAST system; a dilute HF rinse was used for column cleaning between samples. An enriched isotope spike of known concentration was prepared using purified enriched 71Ga (99.8%), obtained from Oak Ridge National Laboratories. The substantial sample pre-concentration of this method allows for ICP-MS analysis using medium resolution which eliminates isobaric interferences including doubly charged 138Ba with 69Ga.</p>
<p>The reagent blank contribution to the dissolved Ga analysis is typically 0.6 picomoles per kilogram (pmol/kg) and the detection limit (based on 3 times the standard deviation of the blank) is 0.3 pmol/kg. Repeated runs of US GEOTRACES intercalibration samples (GS and GD), in-house reference solutions, and cast overlap samples suggest a precision of ± 4%; the limit of detection for Ga was 1.5 pmol/kg. Recovery of the method, as determined by repeated analysis of a spiked and unspiked seawater sample was 100 ± 7%.</p>
<p>See attached Intercalibration Report for additional information.</p>
Specified by the Principal Investigator(s)
<p>The raw ICP-MS count rate data were converted to concentrations using Excel.</p>
<p><strong>Quality Flags:</strong> Quality flags were applied following the GEOTRACES policy (<a href="https://www.geotraces.org/geotraces-quality-flag-policy/" target="_blank">https://www.geotraces.org/geotraces-quality-flag-policy/</a>), which recommends the SeaDataNet Scheme:<br />
<br />
0 = no quality control;<br />
1 = good value;<br />
2 = probably good value;<br />
3 = probably bad value;<br />
4 = bad value;<br />
5 = changed value;<br />
6 = value below detection; (see attached Supplemental File for detection limits for Be-7 samples)<br />
7 = value in excess;<br />
8 = interpolated value;<br />
9 = missing value;<br />
A = value phenomenon uncertain.</p>
Specified by the Principal Investigator(s)
- Imported original file "RR2214_dataTemplate_Shiller_rev1124.xlsx" into the BCO-DMO system.
- Renamed fields to comply with BCO-DMO naming conventions.
- Created the Start_ISO_DateTime_UTC field in ISO 8601 format.
- Corrected the latitude and longitude values for event 20230111.0203.001, Sample ID 18120. (Values were reversed in the original file.)
- Removed the following empty fields: Gear_ID, End_Date_UTC, End_Time_UTC, End_Latitude, End_Longitude
- Saved final file as "939225_v1_gp17-oce_dissolved_ga.csv".
Specified by BCO-DMO Data Managers
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
Super-GeoFISH towed surface vehicle
Super-GeoFISH towed surface vehicle
PI Supplied Instrument Name: Super-GeoFISH towed surface vehicle 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/
GO-FLO Bottle
GO-FLO Bottle
PI Supplied Instrument Name: GO-FLO Bottle Instrument Name: GO-FLO Bottle Instrument Short Name:GO-FLO Instrument Description: GO-FLO bottle cast used to collect water samples for pigment, nutrient, plankton, etc. The GO-FLO sampling bottle is specially designed to avoid sample contamination at the surface, internal spring contamination, loss of sample on deck (internal seals), and exchange of water from different depths. Community Standard Description: http://vocab.nerc.ac.uk/collection/L05/current/30/
ThermoFisher Element XR
ThermoFisher Element XR
PI Supplied Instrument Name: ThermoFisher Element XR PI Supplied Instrument Description:High resolution inductively coupled plasma mass spectrometer, Element XR, ThermoFisher 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/
SeaFAST system
SeaFAST system
PI Supplied Instrument Name: SeaFAST system PI Supplied Instrument Description:Automated Preconcentration System for Undiluted Seawater, seaFAST, Elemental Scientific. Instrument Name: SeaFAST Automated Preconcentration System Instrument Short Name: Instrument Description: The seaFAST is an automated sample introduction system for analysis of seawater and other high matrix samples for analyses by ICPMS (Inductively Coupled Plasma Mass Spectrometry).
Cruise: RR2214
RR2214
R/V Roger Revelle
Community Standard Description
International Council for the Exploration of the Sea
R/V Roger Revelle
vessel
RR2214
Benjamin Twining
Bigelow Laboratory for Ocean Sciences
https://www.bodc.ac.uk/resources/inventories/cruise_inventory/reports/rogerrevelle_rr2214.pdf
Report describing RR2214
R/V Roger Revelle
Community Standard Description
International Council for the Exploration of the Sea
R/V Roger Revelle
vessel