http://lod.bco-dmo.org/id/dataset/862182
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
2021-09-30
ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data
ISO 19115-2:2009(E)
Helium isotope with helium and neon concentration data from Leg 1 (Seattle, WA to Hilo, HI) of the US GEOTRACES Pacific Meridional Transect (PMT) cruise (GP15, RR1814) on R/V Roger Revelle from September to October 2018
2021-09-30
publication
2021-09-30
revision
Marine Biological Laboratory/Woods Hole Oceanographic Institution Library (MBLWHOI DLA)
2021-10-08
publication
https://doi.org/10.26008/1912/bco-dmo.862182.1
William J. Jenkins
Woods Hole Oceanographic Institution
principalInvestigator
Christopher R. German
Woods Hole Oceanographic Institution
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: Jenkins, W. J., German, C. R. (2021) Helium isotope with helium and neon concentration data from Leg 1 (Seattle, WA to Hilo, HI) of the US GEOTRACES Pacific Meridional Transect (PMT) cruise (GP15, RR1814) on R/V Roger Revelle from September to October 2018. Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version 1) Version Date 2021-09-30 [if applicable, indicate subset used]. doi:10.26008/1912/bco-dmo.862182.1 [access date]
GP15 He Isotope C(He) and C(Ne) - Leg 1 Dataset Description: Methods and Sampling: <p>Water samples were transferred from Niskin bottles and stored in crimped copper tubing. Gases were extracted from the water samples in a shore-based vacuum system and stored in aluminosilicate glass ampoules. The extracted gases were analyzed for helium and neon concentrations using ion counting in a quadrupole mass spectrometer and for helium isotopes using a magnetic sector dual-collecting isotope ratio mass spectrometer. Details are given in Jenkins et al. (2019) and Stanley et al. (2007).</p>
<p>Note: Natural and bomb tritium will decay to 3He in the copper tubing&nbsp;water sample container between the time the water sample was acquired and when the gases were extracted. We account for this using tritium concentrations estimated from a prior (2015) cruise occupation&nbsp;extrapolated in time and interpolated in space to the sample location and time. The size of this effect is significant in shallow, northern waters and vanishingly small in deeper and more southerly waters.</p>
Funding provided by NSF Division of Ocean Sciences (NSF OCE) Award Number: OCE-1756138 Award URL: https://www.nsf.gov/awardsearch/show-award?AWD_ID=1756138
completed
William J. Jenkins
Woods Hole Oceanographic Institution
508-289-2554
266 Woods Hole Rd. MS#25
Woods Hole
MA
02543
USA
wjenkins@whoi.edu
pointOfContact
Christopher R. German
Woods Hole Oceanographic Institution
508-289-2853
266 Woods Hole Rd Clark South 276 (MS #24)
Woods Hole
MA
02543
USA
cgerman@whoi.edu
pointOfContact
asNeeded
Dataset Version: 1
Unknown
Station_ID
Start_Date_UTC
Start_Time_UTC
Start_ISO_DateTime_UTC
Start_Latitude
Start_Longitude
Event_ID
Sample_ID
Sample_Depth
Ne_D_CONC_BOTTLE_leeb4y
SD1_Ne_D_CONC_BOTTLE_leeb4y
Flag_Ne_D_CONC_BOTTLE_leeb4y
He_D_CONC_BOTTLE_saee1d
SD1_He_D_CONC_BOTTLE_saee1d
Flag_He_D_CONC_BOTTLE_saee1d
He_3_4_D_DELTA_BOTTLE_xgifq8
SD1_He_3_4_D_DELTA_BOTTLE_xgifq8
Flag_He_3_4_D_DELTA_BOTTLE_xgifq8
magnetic sector dual-collecting isotope ratio mass spectrometer
Niskin bottles
quadrupole mass spectrometer
theme
None, User defined
station
date
time of day
ISO_DateTime_UTC
latitude
longitude
event
sample identification
depth
dissolved noble gas concentration
quality flag
featureType
BCO-DMO Standard Parameters
Isotope-ratio Mass Spectrometer
Niskin bottle
Quadrupole Mass Spectrometer
instrument
BCO-DMO Standard Instruments
RR1814
service
Deployment Activity
Seattle, WA to Hilo, HI
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 Pacific Meridional Transect (GP15)
http://www.geotraces.org/
US GEOTRACES Pacific Meridional Transect (GP15)
<p>A 60-day research cruise took place in 2018 along a transect form Alaska to Tahiti at 152° W. A description of the project titled "<em>Collaborative Research: Management and implementation of the US GEOTRACES Pacific Meridional Transect</em>", funded by NSF, is below. Further project information is available on the <a href="https://www.geotraces.org/" target="_blank">US GEOTRACES website</a> and on the <a href="https://geotraces-gp15.com/" target="_blank">cruise blog</a>. A detailed <a href="https://datadocs.bco-dmo.org/docs/geotraces/GEOTRACES_PMT/casciotti/data_docs/GP15_Cruise_Report_with_ODF_Report.pdf" target="_blank">cruise report is also available</a> as a PDF.</p>
<p><em>Description from NSF award abstract:</em><br />
GEOTRACES is a global effort in the field of Chemical Oceanography in which the United States plays a major role. The goal of the GEOTRACES program is to understand the distributions of many elements and their isotopes in the ocean. Until quite recently, these elements could not be measured at a global scale. Understanding the distributions of these elements and isotopes will increase the understanding of processes that shape their distributions and also the processes that depend on these elements. For example, many "trace elements" (elements that are present in very low amounts) are also important for life, and their presence or absence can play a vital role in the population of marine ecosystems. This project will launch the next major U.S. GEOTRACES expedition in the Pacific Ocean between Alaska and Tahiti. The award made here would support all of the major infrastructure for this expedition, including the research vessel, the sampling equipment, and some of the core oceanographic measurements. This project will also support the personnel needed to lead the expedition and collect the samples.</p>
<p>This project would support the essential sampling operations and infrastructure for the U.S. GEOTRACES Pacific Meridional Transect along 152° W to support a large variety of individual science projects on trace element and isotope (TEI) biogeochemistry that will follow. Thus, the major objectives of this management proposal are: (1) plan and coordinate a 60 day research cruise in 2018; (2) obtain representative samples for a wide variety of TEIs using a conventional CTD/rosette, GEOTRACES Trace Element Sampling Systems, and in situ pumps; (3) acquire conventional CTD hydrographic data along with discrete samples for salinity, dissolved oxygen, algal pigments, 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 data to the GEOTRACES Data Assembly Centre (via the US BCO-DMO data center); and (6) coordinate all cruise communications between investigators, including preparation of a hydrographic report/publication. This project would also provide baseline measurements of TEIs in the Clarion-Clipperton fracture zone (~7.5°N-17°N, ~155°W-115°W) where large-scale deep sea mining is planned. Environmental impact assessments are underway in partnership with the mining industry, but the effect of mining activities on TEIs in the water column is one that could be uniquely assessed by the GEOTRACES community. In support of efforts to communicate the science to a wide audience the investigators will recruit an early career freelance science journalist with interests in marine science and oceanography to participate on the cruise and do public outreach, photography and/or videography, and social media from the ship, as well as to submit articles about the research to national media. The project would also support several graduate students.</p>
U.S. GEOTRACES PMT
largerWorkCitation
project
Measurement of Helium Isotopes on the U.S. GEOTRACES Alaska-Tahiti Section (GP15)
https://osprey.bco-dmo.org/project/862187
Measurement of Helium Isotopes on the U.S. GEOTRACES Alaska-Tahiti Section (GP15)
<p><em>NSF Award Abstract:</em><br />
The goal of the international GEOTRACES program is to understand the distributions of trace chemical elements and their isotopes in the oceans. An essential part of this effort is determining the sources of trace elements to the oceans. One important such source comes from seafloor hydrothermal venting. This project will support the measurement of helium isotopes on the 2018 U.S. GEOTRACES expedition in the Pacific Ocean, running south from Alaska to Tahiti. Helium isotopes provide important information on the presence and dispersion of hydrothermal plumes. On a larger scale, they can also be used to calculate global-scale inputs of hydrothermally-sourced trace elements and isotopes. Thus, the proposed work is closely tied to many other projects associated with this expedition. The measurement of helium isotopes will also allow enable the investigation of physical mixing rates within the upper ocean to help interpret the fate of other trace elements. At the northern end of the section, this approach will also be used to investigate the rate at which other trace elements and isotopes from seafloor hydrothermal venting are delivered to the more biologically productive surface ocean. In addition to supporting the GEOTRACES effort and participating in community-scale outreach efforts associated with the expedition, the investigators will also work with a visual artist to communicate their science to the public in new ways.</p>
<p>The U.S. GEOTRACES Pacific Meridional Transect (56°N to 20°S, along 152°W) in late 2018 will intercept: strong margin fluxes, sub-Arctic high-nutrient, low-chlorophyll waters, the oldest deep waters in the world's oceans, the distal ends of multiple hydrothermal plumes, oxygen minimum zones, subpolar and equatorial upwelling, and, in the South Pacific near 20°S, some of the most oligotrophic waters known. This section, together with the US GEOTRACES East Pacific Zonal Transect (EPZT) conducted in 2013, will also close off a large volume of the Pacific Ocean. Consequently, this work will facilitate new, improved evaluations of regional-scale fluxes of hydrothermally-sourced trace elements and isotopes (TEIs) to the oceans. Because the 2018 expedition will intercept multiple hydrothermal plumes, this project will also allow the investigation of three key questions emerging from the larger U.S. and international GEOTRACES programs: 1) Is there a significant source of hydrothermally-sourced Fe and other TEIs to the euphotic zone in the North Pacific, through upwelling, as was demonstrated for the Southern Ocean from the 2013 EPZT results? 2) How do TEI:He-3 ratios in hydrothermal plumes vary with different geologic settings of their vent-sources? 3) How do the TEI:He-3 ratios imparted to hydrothermal plumes vary along the thermohaline conveyor as a function of varying water column chemistry? Throughout the section the investigators will also combine upper-water column helium-3 measurements with water column tritium concentrations (extrapolated from data collected on past expeditions) to estimate water column ventilation time scales that can be used to quantify rates of TEI transformation across the wide range of biogeochemical regimes to be intercepted (tropical, subtropical, subpolar). In regions characterized by upwelling, precise measurements of helium isotopes can be combined with canonical gas-exchange rate estimates to make flux-gauge determinations of upwelling rates for some key TEIs.</p>
<p>This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.</p>
PMT Helium Isotopes
largerWorkCitation
project
eng; USA
oceans
Seattle, WA to Hilo, HI
-156.963
-152
19.681
56.059
2018-09-24
2018-10-21
Pacific Meridional Transect along 152W (GP15)
0
BCO-DMO catalogue of parameters from Helium isotope with helium and neon concentration data from Leg 1 (Seattle, WA to Hilo, HI) of the US GEOTRACES Pacific Meridional Transect (PMT) cruise (GP15, RR1814) on R/V Roger Revelle from September to October 2018
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/862247.rdf
Name: Station_ID
Units: unitless
Description: <p>Station number</p>
http://lod.bco-dmo.org/id/dataset-parameter/862248.rdf
Name: Start_Date_UTC
Units: unitless
Description: <p>Start date; format: YYYY-MM-DD</p>
http://lod.bco-dmo.org/id/dataset-parameter/862249.rdf
Name: Start_Time_UTC
Units: unitless
Description: <p>Start time (UTC); format: hh:mm</p>
http://lod.bco-dmo.org/id/dataset-parameter/862250.rdf
Name: Start_ISO_DateTime_UTC
Units: unitless
Description: <p>Start date and time (UTC) in ISO8601 format: YYYY-MM-DDThh:mmZ</p>
http://lod.bco-dmo.org/id/dataset-parameter/862251.rdf
Name: Start_Latitude
Units: decimal degrees North
Description: <p>Start latitude</p>
http://lod.bco-dmo.org/id/dataset-parameter/862252.rdf
Name: Start_Longitude
Units: decimal degrees East
Description: <p>Start longitude</p>
http://lod.bco-dmo.org/id/dataset-parameter/862253.rdf
Name: Event_ID
Units: unitless
Description: <p>Event number</p>
http://lod.bco-dmo.org/id/dataset-parameter/862254.rdf
Name: Sample_ID
Units: unitless
Description: <p>GEOTRACES sample number</p>
http://lod.bco-dmo.org/id/dataset-parameter/862255.rdf
Name: Sample_Depth
Units: meters (m)
Description: <p>Sample depth</p>
http://lod.bco-dmo.org/id/dataset-parameter/862256.rdf
Name: Ne_D_CONC_BOTTLE_leeb4y
Units: nanomoles per kilogram (nmol/kg)
Description: <p>Concentration of dissolved Neon</p>
http://lod.bco-dmo.org/id/dataset-parameter/862257.rdf
Name: SD1_Ne_D_CONC_BOTTLE_leeb4y
Units: nanomoles per kilogram (nmol/kg)
Description: <p>Standard deviation of Ne_D_CONC_BOTTLE_leeb4y</p>
http://lod.bco-dmo.org/id/dataset-parameter/862258.rdf
Name: Flag_Ne_D_CONC_BOTTLE_leeb4y
Units: unitless
Description: <p>ODF quality flag for Ne_D_CONC_BOTTLE_leeb4y</p>
http://lod.bco-dmo.org/id/dataset-parameter/862259.rdf
Name: He_D_CONC_BOTTLE_saee1d
Units: nanomoles per kilogram (nmol/kg)
Description: <p>Concentration of dissolved Helium</p>
http://lod.bco-dmo.org/id/dataset-parameter/862260.rdf
Name: SD1_He_D_CONC_BOTTLE_saee1d
Units: nanomoles per kilogram (nmol/kg)
Description: <p>Standard deviation of He_D_CONC_BOTTLE_saee1d</p>
http://lod.bco-dmo.org/id/dataset-parameter/862261.rdf
Name: Flag_He_D_CONC_BOTTLE_saee1d
Units: unitless
Description: <p>ODF quality flag for He_D_CONC_BOTTLE_saee1d</p>
http://lod.bco-dmo.org/id/dataset-parameter/862262.rdf
Name: He_3_4_D_DELTA_BOTTLE_xgifq8
Units: percent (%)
Description: <p>Delta 3He of dissolved He referenced to air; corrected for in-storage tritium decay</p>
http://lod.bco-dmo.org/id/dataset-parameter/862263.rdf
Name: SD1_He_3_4_D_DELTA_BOTTLE_xgifq8
Units: percent (%)
Description: <p>Standard deviation of He_3_4_D_DELTA_BOTTLE_xgifq8</p>
http://lod.bco-dmo.org/id/dataset-parameter/862264.rdf
Name: Flag_He_3_4_D_DELTA_BOTTLE_xgifq8
Units: unitless
Description: <p>ODF quality flag for He_3_4_D_DELTA_BOTTLE_xgifq8</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
44661
https://darchive.mblwhoilibrary.org/bitstream/1912/27612/1/dataset-862182_gp15-he-isotope-che-and-cne-leg-1__v1.tsv
download
https://doi.org/10.26008/1912/bco-dmo.862182.1
download
onLine
dataset
<p>Water samples were transferred from Niskin bottles and stored in crimped copper tubing. Gases were extracted from the water samples in a shore-based vacuum system and stored in aluminosilicate glass ampoules. The extracted gases were analyzed for helium and neon concentrations using ion counting in a quadrupole mass spectrometer and for helium isotopes using a magnetic sector dual-collecting isotope ratio mass spectrometer. Details are given in Jenkins et al. (2019) and Stanley et al. (2007).</p>
<p>Note: Natural and bomb tritium will decay to 3He in the copper tubing&nbsp;water sample container between the time the water sample was acquired and when the gases were extracted. We account for this using tritium concentrations estimated from a prior (2015) cruise occupation&nbsp;extrapolated in time and interpolated in space to the sample location and time. The size of this effect is significant in shallow, northern waters and vanishingly small in deeper and more southerly waters.</p>
Specified by the Principal Investigator(s)
<p><strong>Data Processing:</strong><br />
Raw data were&nbsp;acquired and reduced using custom software written in VB.NET. Data were processed using MATLAB (2020b) and stored in a PostgreSQL V9.3 database.</p>
<p><strong>BCO-DMO Processing:</strong><br />
- renamed fields to comply with BCO-DMO naming conventions;<br />
- converted date field to YYYY-MM-DD format;<br />
- added date/time field in ISO8601 format;<br />
- removed empty columns.</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
magnetic sector dual-collecting isotope ratio mass spectrometer
magnetic sector dual-collecting isotope ratio mass spectrometer
PI Supplied Instrument Name: magnetic sector dual-collecting isotope ratio mass spectrometer PI Supplied Instrument Description:The helium isotope mass spectrometer is a custom-built unit manufactured at the Woods Hole Oceanographic Institution. Instrument Name: Isotope-ratio Mass Spectrometer Instrument Short Name:IR Mass Spec; IRMS Instrument Description: The Isotope-ratio Mass Spectrometer is a particular type of mass spectrometer used to measure the relative abundance of isotopes in a given sample (e.g. VG Prism II Isotope Ratio Mass-Spectrometer). Community Standard Description: http://vocab.nerc.ac.uk/collection/L05/current/LAB16/
Niskin bottles
Niskin bottles
PI Supplied Instrument Name: Niskin 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/
quadrupole mass spectrometer
quadrupole mass spectrometer
PI Supplied Instrument Name: quadrupole mass spectrometer PI Supplied Instrument Description:The quadrupole mass spectrometer model is HIDEN P/N PCI 1000 1.2HAL/3F 1301-9 PIC type 570,309. Instrument Name: Quadrupole Mass Spectrometer Instrument Short Name:QMS Instrument Description: A piece of apparatus that consists of an ion source, a mass-to-charge analyser, a detector and a vacuum system and is used to measure mass spectra. The detector is a quadrupole mass-to-charge analyser, which holds the ions in a stable orbit by an electric field generated by four parallel electrodes.
Cruise: RR1814
RR1814
R/V Roger Revelle
Community Standard Description
International Council for the Exploration of the Sea
R/V Roger Revelle
vessel
RR1814
Gregory A. Cutter
Old Dominion University
https://datadocs.bco-dmo.org/docs/geotraces/GEOTRACES_PMT/casciotti/data_docs/GP15_Cruise_Report_with_ODF_Report.pdf
Report describing RR1814
R/V Roger Revelle
Community Standard Description
International Council for the Exploration of the Sea
R/V Roger Revelle
vessel