http://lod.bco-dmo.org/id/dataset/719989
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
2017-11-28
ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data
ISO 19115-2:2009(E)
Noble gas concentrations, N2/Ar and saturation anomalies (with associated CTD data) from the Labrador Sea in 2007, 2011, 2015, 2016 (N2:Ar Deep Tracer)
2017-12-06
publication
2017-12-06
revision
BCO-DMO Linked Data URI
2017-12-06
creation
http://lod.bco-dmo.org/id/dataset/719989
Roberta C. Hamme
University of Victoria
principalInvestigator
Steven R. Emerson
University of Washington
principalInvestigator
Igor Yashayaev
Bedford Institute of Oceanography
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: Hamme, R. C., Yashayaev, I., Emerson, S. R. (2017) Noble gas concentrations, N2/Ar and saturation anomalies (with associated CTD data) from the Labrador Sea in 2007, 2011, 2015, 2016 (N2:Ar Deep Tracer). Biological and Chemical Oceanography Data Management Office (BCO-DMO). Version Date 2017-12-06 [if applicable, indicate subset used]. http://lod.bco-dmo.org/id/dataset/719989 [access date]
Noble gas and N2/Ar Dataset Description: <p>This data is provided free for educational and non-profit research purposes.&nbsp; Please cite the publication listed under Acquisition Description in any work that uses this database. If you would like to be apprised of any future corrections or updates to the data, send an e-mail to <a href="mailto:rhamme@uvic.ca">rhamme@uvic.ca</a>. If you discover what you believe to be an error in the database, it is your responsibility to send an e-mail to <a href="mailto:rhamme@uvic.ca">rhamme@uvic.ca</a> before using the data in a publication.</p>
<p>Both MatLab .mat databases and comma-delimited .csv text files are provided. These two formats contain identical information. The data from the paper is listed in order of collection (date). Different cruises can be identified by the cruise name or date.</p>
<p>Download the Matlab file:&nbsp;<a href="https://datadocs.bco-dmo.org/d3/data_docs/N2Ar_Deep_Tracer/LabSea_Hammeetal2017-12-06.mat">LabSea_Hammeetal2017-12-06</a></p> Methods and Sampling: <p>Methodology is given in Hamme et al. (2017).&nbsp; Briefly, samples are collected through CO2-flushed tubing into ~180mL evacuated glass flasks until half full.&nbsp; Samples are weighed. The water is equilibrated with the headspace, then removed. &nbsp;Headspace gases are cryogenically purified to remove H2O and CO2 for N2/Ar samples or to remove all gases except noble gases for the noble gas samples.&nbsp; An additional aliquot of 38Ar is added to the noble gas samples along with a balance gas of either N2 or He. Samples are analyzed on a MAT 252 or 253 isotope ratio mass spectrometer for the noble gas and UVic N2/Ar samples, and on a Delta XL for the N2/Ar samples run at UW.&nbsp; Samples are analyzed against standards of similar composition.&nbsp; Standard gases are calibrated relative to air with assumed dry mole fractions of 1.818e-5 for Ne,&nbsp; 9.34e-3 for Ar, 1.141e-6 for Kr, and 0.78084 for N2.</p>
<p><strong>Related Reference:</strong><br />
These data were published in Figures 1, 2 and 4 of:<br />
Hamme, R. C.,&nbsp;Emerson, S. R.,&nbsp;Severinghaus, J. P.,&nbsp;Long, M. C., &amp;&nbsp;Yashayaev, I.&nbsp;(2017).&nbsp;Using noble gas measurements to derive air-sea process information and predict physical gas saturations.&nbsp;Geophysical Research Letters,&nbsp;44,&nbsp;9901–9909.&nbsp;<a href="https://doi.org/10.1002/2017GL075123" target="_blank">https://doi.org/10.1002/2017GL075123</a></p>
Funding provided by National Sciences and Engineering Research Council of Canada (NSERC) Award Number: 328290-2006 Award URL: http://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=332959
Funding provided by NSF Division of Ocean Sciences (NSF OCE) Award Number: OCE-1029299 Award URL: https://www.nsf.gov/awardsearch/show-award?AWD_ID=1029299
Funding provided by National Sciences and Engineering Research Council of Canada (NSERC) Award Number: 329290-2012 Award URL: http://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=507834
Funding provided by National Sciences and Engineering Research Council of Canada (NSERC) Award Number: 433848-2012 Award URL: http://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=512032
Funding provided by National Sciences and Engineering Research Council of Canada (NSERC) Award Number: 433898-2012 Award URL: http://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=512038
completed
Roberta C. Hamme
University of Victoria
250-472-4014
School of Earth and Ocean Sciences University of Victoria, P.O. Box 1700 STN CSC
Victoria
BC
V8W 2Y2
Canada
rhamme@uvic.ca
pointOfContact
Steven R. Emerson
University of Washington
(206) 543-0428
School of Oceanography University of Washington, Box 355351
Seattle
WA
98195
USA
emerson@u.washington.edu
pointOfContact
Igor Yashayaev
Bedford Institute of Oceanography
902-426-2558
P.O. Box: 1006
Dartmouth
Nova Scotia
B2Y 4A2
Canada
Igor.Yashayaev@dfo-mpo.gc.ca
pointOfContact
asNeeded
Unknown
latitude
longitude
event
niskin
year
month
day
cruisename
press
CTDtemp
CTDsal
Ne
Ar
Kr
N2Ar
N2Ar_UW
depth
ptmp
sigma_theta
water_mass
Nesat
Arsat
Krsat
N2Arsat
N2Arsat_UW
Thermo Finnigan MAT253
Thermo Finnigan MAT252
Thermo Finnigan Delta XL
theme
None, User defined
latitude
longitude
event
bottle
year
month of year
day of month
cruise name
water pressure
water temperature at measurement depth
salinity
dissolved noble gas concentration
depth
potential temperature
sigma-theta potential density
site description
No BCO-DMO term
featureType
BCO-DMO Standard Parameters
Isotope-ratio Mass Spectrometer
Isotope-ratio Mass Spectrometer
Isotope-ratio Mass Spectrometer
instrument
BCO-DMO Standard Instruments
18HU20070510
18HU20110506
18DL20150710
18HU20150504
18HU20160430
service
Deployment Activity
NW Atlantic, Labrador Sea
NW Atlantic, Baffin Bay
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.
The Marine Dissolved N2/Ar Ratio, A Tracer for Deep Ocean Denitrification?
https://osprey.bco-dmo.org/project/719785
The Marine Dissolved N2/Ar Ratio, A Tracer for Deep Ocean Denitrification?
<p>The role of nitrate in the ocean carbon cycle and its relatively short residence time make it crucial to understand the marine nitrogen cycle; however, there is currently insufficient experimental evidence to accurately determine present day fluxes. Denitrification and nitrogen fixation are the main sink and source for dissolved inorganic nitrogen in the sea.</p>
<p>In this study a research team at the University of Washington will collaborate with colleagues at the University of Victoria to study changes in the N2/Ar ratio in seawater caused by denitrification. Previous research has demonstrated the utility of this tracer in the oxygen minimum zones of the Pacific and Indian Ocean, but they will investigate observed changes in the "background" distribution of the ratio. The investigators already have unpublished data that indicate the N2/Ar ratio increases by about 0.5 % from the Atlantic to Pacific Oceans in waters below 1000 meters. If this increase is assumed to be caused by denitrification in deep ocean sediments it amounts to roughly 80 Tg/yr of denitrification. This is a significant portion of estimated global denitrification (between 200 and 400 Tg/yr) and within the range of the largely untested predictions of deep-ocean sediment denitrification using global sediment diagenesis models. Presently it is not possible to unequivocally attribute the observed deep water column N2/Ar increase to denitrification because it could also be caused by deep-water formation processes in the Antarctic.</p>
<p>The investigators will separate the fraction of the N2/Ar ratio increase due to the physical processes of atmosphere or ice-water interaction from that due to denitrification by measuring other noble gas ratios (primarily Ne/Ar and Kr/Ar) that change only in response to ocean surface cooling and bubble processes. They will measure deep water-column profiles of N2/Ar, Ne/Ar and Kr/Ar in strategically-located sites where there are ships of opportunity: the Labrador Sea, the North Atlantic at the Bermuda time-series site, the Drake Passage, the Indian Ocean south of Madagascar, the subtropical North Pacific at the Hawaii Ocean time-series site, and the subarctic North Pacific at Station P. Preliminary measurements of all of the gas ratios have been made, and extensive testing has been done to identify sources of contamination in the sampling methods. This proposal involves a two-laboratory collaboration to make it possible to sample a large number of ocean sites, minimize atmospheric contamination by rapid sample analysis, and create maximum accuracy through laboratory intercalibration.</p>
<p>Broader Impacts: This project will promote international ocean science collaboration between the U.S.and Canada. It will support the research of an assistant professor to apply analytical methods that she has helped develop to an important problem in oceanography. A PhD candidate at the University of Washington will be trained in the area of chemical oceanography using analytical methods of gas ratio and isotope ratio mass spectrometry.</p>
N2:Ar Deep Tracer
largerWorkCitation
project
eng; USA
oceans
NW Atlantic, Labrador Sea; NW Atlantic, Baffin Bay
-56.5368
-48.542
55.4228
60.4428
2007-05-14
2016-05-14
Global oceans
0
BCO-DMO catalogue of parameters from Noble gas concentrations, N2/Ar and saturation anomalies (with associated CTD data) from the Labrador Sea in 2007, 2011, 2015, 2016 (N2:Ar Deep Tracer)
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/720010.rdf
Name: latitude
Units: decimal degrees
Description: <p>The latitude of the station in degrees North.</p>
http://lod.bco-dmo.org/id/dataset-parameter/720011.rdf
Name: longitude
Units: decimal degrees
Description: <p>The longitude of the station in degrees East. Negative numbers indicate oW.</p>
http://lod.bco-dmo.org/id/dataset-parameter/720012.rdf
Name: event
Units: unitless
Description: <p>number of the cast event that the water samples were drawn from.</p>
http://lod.bco-dmo.org/id/dataset-parameter/720013.rdf
Name: niskin
Units: unitless
Description: <p>number of the niskin that the water samples were drawn from.</p>
http://lod.bco-dmo.org/id/dataset-parameter/720014.rdf
Name: year
Units: unitless
Description: <p>year of sample collection</p>
http://lod.bco-dmo.org/id/dataset-parameter/720015.rdf
Name: month
Units: unitless
Description: <p>month of sample collection</p>
http://lod.bco-dmo.org/id/dataset-parameter/720016.rdf
Name: day
Units: unitless
Description: <p>day of sample collection</p>
http://lod.bco-dmo.org/id/dataset-parameter/720017.rdf
Name: cruisename
Units: unitless
Description: <p>The EXPO number is listed first, followed by a more colloquial cruise name, followed by the ship name, separated by semicolons. In Matlab file, formatted as cell array of strings.</p>
http://lod.bco-dmo.org/id/dataset-parameter/720018.rdf
Name: press
Units: decibars
Description: <p>Pressure</p>
http://lod.bco-dmo.org/id/dataset-parameter/720019.rdf
Name: CTDtemp
Units: degrees Celsius
Description: <p>in situ temperature measured by the CTD (AR7W cruises: finalized CTD data is an average of downcasts and upcasts within 10dbar of the pressure where the niskin bottle closed;GEOTRACES cruise: finalized CTD data from rosette bottle file) in oC on the ITS-90 Temperature Scale.</p>
http://lod.bco-dmo.org/id/dataset-parameter/720020.rdf
Name: CTDsal
Units: unitless
Description: <p>salinity measured by the CTD (AR7W cruises: finalized CTD data is an average of downcasts and upcasts within 10dbar of the pressure where the niskin bottle closed; GEOTRACES cruise: finalized CTD data from rosette bottle file); expressed on the PSS-78 scale.</p>
http://lod.bco-dmo.org/id/dataset-parameter/720021.rdf
Name: Ne
Units: micromol/kilogram
Description: <p>Ne concentration in umol/kg determined by combining mass spectrometric Ne/Ar ratio measurements with absolute Ar concentrations by Ar isotope dilution with 38Ar. As discussed in the paper: the Ne method uses a helium balance gas but is otherwise similar to that of Hamme and Severinghaus (2007) "Trace gas disequilibria during deep-water formation" Deep Sea Research I: 54(6):939-950. Standard gases are calibrated relative to air with assumed dry mole fractions of 1.818e-5 for Ne.</p>
http://lod.bco-dmo.org/id/dataset-parameter/720022.rdf
Name: Ar
Units: micromol/kilogram
Description: <p>Ar concentration in umol/kg determined by Ar isotope dilution with 38Ar. As discussed in the paper, the 2007 measurements follow Hamme and Severinghaus (2007) "Trace gas disequilibria during deep-water formation" Deep Sea Research I: 54(6):939-950 while the later measurements use a similar method but with a helium balance gas. Standard gases are calibrated relative to air with assumed dry mole fractions of 9.34e-3 for Ar.</p>
http://lod.bco-dmo.org/id/dataset-parameter/720023.rdf
Name: Kr
Units: micromol/kilogram
Description: <p>Kr concentration in umol/kg determined by combining mass spectrometric Kr/Ar ratio measurements with absolute Ar concentrations by Ar isotope dilution with 38Ar. As discussed in the paper, the 2007 measurements follow Hamme and Severinghaus (2007) "Trace gas disequilibria during deep-water formation" Deep Sea Research I: 54(6):939-950; while the later measurements use a similar method but with a helium balance gas. Standard gases are calibrated relative to air with assumed dry mole fractions of 1.141e-6 for Kr.</p>
http://lod.bco-dmo.org/id/dataset-parameter/720024.rdf
Name: N2Ar
Units: unitless
Description: <p>N2/Ar ratio determined by mass spectrometry with no units. Samples from 2007 were analyzed at Scripps Institution of Oceanography by purification with heated copper to remove oxygen following T. Kobashi; J.P. Severinghaus and K. Kawamura (2008) "Argon and nitrogen isotopes of trapped air in the GISP2 ice core during the Holocene epoch (0-11500 B.P.): Methodology and implications for gas loss processes" Geochim. Cosmochim. Acta 72 (19):4675-4686; doi:10.1016/j.gca.2008.07.006. Measurements from later years were analyzed at University of Victoria following Emerson et al. (1999) "Accurate measurement of O2, N2, and Ar gases in water and the solubility of N2" Marine Chemistry 64:337-347. Standard gases are calibrated relative to air with assumed dry mole fractions of 9.34e-3 for Ar and 0.78084 for N2.</p>
http://lod.bco-dmo.org/id/dataset-parameter/720025.rdf
Name: N2Ar_UW
Units: unitless
Description: <p>Same as for N2Ar but for data analyzed at University of Washington following a method that includes a 36Ar spike but otherwise follows Emerson et al. (1999) "Accurate measurement of O2, N2, and Ar gases in water and the solubility of N2" Marine Chemistry 64:337-347. Standard gases are calibrated relative to air with assumed dry mole fractions of 9.34e-3 for Ar and 0.78084 for N2.</p>
http://lod.bco-dmo.org/id/dataset-parameter/720026.rdf
Name: depth
Units: meters
Description: <p>Depth</p>
http://lod.bco-dmo.org/id/dataset-parameter/720027.rdf
Name: ptmp
Units: degrees Celsius
Description: <p>Potential temperature in oC and referenced to the surface.</p>
http://lod.bco-dmo.org/id/dataset-parameter/720028.rdf
Name: sigma_theta
Units: kilograms per meter cubed - 1000
Description: <p>Potential density of the seawater expressed in sigma units and referenced to the surface.</p>
http://lod.bco-dmo.org/id/dataset-parameter/720029.rdf
Name: water_mass
Units: unitless
Description: <p>Water mass for each sample identified using potential temperature and salinity data. 1 = LSW (Labrador Sea Water); 2 = IC (Irminger Current); 3 = ISW (Icelandic Slope Water); 4 = NEADW (NorthEast Atlantic Deep Water); 5 = DSOW (Denmark Strait Overflow Water); 6 = transitional water masses.</p>
http://lod.bco-dmo.org/id/dataset-parameter/720030.rdf
Name: Nesat
Units: percent
Description: <p>Saturation anomaly of Ne in percent. 0% indicates that the Ne concentration is equal to that expected at equilibrium for the potential temperature and salinity of the water. ie. Nesat = (Ne/Neeq - 1) *100 The Ne saturation anomaly is calculated relative to the solubility curve of Hamme and Emerson (2004) "The solubility of neon, nitrogen, and argon in distilled water and seawater" Deep-Sea Research I: 51(11):1517-1528.</p>
http://lod.bco-dmo.org/id/dataset-parameter/720031.rdf
Name: Arsat
Units: percent
Description: <p>Saturation anomaly of Ar in percent. 0% indicates that the Ar concentration is equal to that expected at equilibrium for the potential temperature and salinity of the water. ie. Arsat = (Ar/Areq - 1) *100 The Ar saturation anomaly is calculated relative to the solubility curve of Hamme and Emerson (2004) "The solubility of neon, nitrogen, and argon in distilled water and seawater" Deep-Sea Research I: 51(11):1517-1528.</p>
http://lod.bco-dmo.org/id/dataset-parameter/720032.rdf
Name: Krsat
Units: percent
Description: <p>Saturation anomaly of Kr in percent. 0% indicates that the Kr concentration is equal to that expected at equilibrium for the potential temperature and salinity of the water. ie. Krsat = (Kr/Kreq - 1) *100 Kr saturation anomaly is calculated relative to the solubility curve of Weiss and Kyser (1978) "Solubility of Krypton in Water and Seawater" Journal of Chemical Thermodynamics 23(1):69-72.</p>
http://lod.bco-dmo.org/id/dataset-parameter/720033.rdf
Name: N2Arsat
Units: percent
Description: <p>Saturation anomaly of N2/Ar ratio in percent. N2/Ar ratio determined by mass spectrometry divided by the equilibrium ratio for the potential temperature and salinity of the water - 1 * 100; ie. N2Arsat = ((N2/Ar) / (N2eq/Areq) - 1) * 100. N2/Ar saturation anomaly is calculated relative to the solubility curves of Hamme and Emerson (2004) "The solubility of neon, nitrogen, and argon in distilled water and seawater" Deep-Sea Research I: 51(11):1517-1528.</p>
http://lod.bco-dmo.org/id/dataset-parameter/720034.rdf
Name: N2Arsat_UW
Units: percent
Description: <p>Same as for N2Arsat but for data analyzed at University of Washington.</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
32720
https://datadocs.bco-dmo.org/file/2GGXPxLfRqqn1J/LabSea_gas.csv
LabSea_gas.csv
Primary data file for dataset ID 719989
download
https://osprey.bco-dmo.org/dataset/719989/data/download
download
onLine
dataset
<p>Methodology is given in Hamme et al. (2017).&nbsp; Briefly, samples are collected through CO2-flushed tubing into ~180mL evacuated glass flasks until half full.&nbsp; Samples are weighed. The water is equilibrated with the headspace, then removed. &nbsp;Headspace gases are cryogenically purified to remove H2O and CO2 for N2/Ar samples or to remove all gases except noble gases for the noble gas samples.&nbsp; An additional aliquot of 38Ar is added to the noble gas samples along with a balance gas of either N2 or He. Samples are analyzed on a MAT 252 or 253 isotope ratio mass spectrometer for the noble gas and UVic N2/Ar samples, and on a Delta XL for the N2/Ar samples run at UW.&nbsp; Samples are analyzed against standards of similar composition.&nbsp; Standard gases are calibrated relative to air with assumed dry mole fractions of 1.818e-5 for Ne,&nbsp; 9.34e-3 for Ar, 1.141e-6 for Kr, and 0.78084 for N2.</p>
<p><strong>Related Reference:</strong><br />
These data were published in Figures 1, 2 and 4 of:<br />
Hamme, R. C.,&nbsp;Emerson, S. R.,&nbsp;Severinghaus, J. P.,&nbsp;Long, M. C., &amp;&nbsp;Yashayaev, I.&nbsp;(2017).&nbsp;Using noble gas measurements to derive air-sea process information and predict physical gas saturations.&nbsp;Geophysical Research Letters,&nbsp;44,&nbsp;9901–9909.&nbsp;<a href="https://doi.org/10.1002/2017GL075123" target="_blank">https://doi.org/10.1002/2017GL075123</a></p>
Specified by the Principal Investigator(s)
<p>All samples were collected in duplicate.&nbsp; Only data for which both duplicates were successfully analyzed and whose standard deviation was within three times the overall dataset pooled standard deviation are included in this dataset.</p>
<p><strong>BCO-DMO Processing Notes:</strong><br />
- added conventional header with dataset name, PI name, version date<br />
- modified parameter names to conform with BCO-DMO naming conventions<br />
- replaced commas and colons with semicolons</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
Thermo Finnigan MAT253
Thermo Finnigan MAT253
PI Supplied Instrument Name: Thermo Finnigan MAT253 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/
Thermo Finnigan MAT252
Thermo Finnigan MAT252
PI Supplied Instrument Name: Thermo Finnigan MAT252 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/
Thermo Finnigan Delta XL
Thermo Finnigan Delta XL
PI Supplied Instrument Name: Thermo Finnigan Delta XL 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/
Cruise: 18HU20070510
18HU20070510
CCGS Hudson
Community Standard Description
International Council for the Exploration of the Sea
CCGS Hudson
vessel
18HU20070510
Dr Ross Hendry
Bedford Institute of Oceanography
https://datadocs.bco-dmo.org/d3/data_docs/N2Ar_Deep_Tracer/cruise_rpt_ar07w_18HU20070510do.pdf
Report describing 18HU20070510
Cruise: 18HU20110506
18HU20110506
CCGS Hudson
Community Standard Description
International Council for the Exploration of the Sea
CCGS Hudson
vessel
18HU20110506
Igor Yashayaev
Bedford Institute of Oceanography
https://datadocs.bco-dmo.org/d3/data_docs/N2Ar_Deep_Tracer/cruise_rpt_ar07w_18HU20110506do.txt
Report describing 18HU20110506
Cruise: 18DL20150710
18DL20150710
CCGS Amundsen
Community Standard Description
International Council for the Exploration of the Sea
CCGS Amundsen
vessel
18DL20150710
Roger Francois
University of British Columbia
https://datadocs.bco-dmo.org/d3/data_docs/N2Ar_Deep_Tracer/geotraces_canadian_cruise_report_gn02_gn03_and_figs.pdf
Report describing 18DL20150710
Cruise: 18HU20150504
18HU20150504
CCGS Hudson
Community Standard Description
International Council for the Exploration of the Sea
CCGS Hudson
vessel
18HU20150504
Igor Yashayaev
Bedford Institute of Oceanography
Cruise: 18HU20160430
18HU20160430
CCGS Hudson
Community Standard Description
International Council for the Exploration of the Sea
CCGS Hudson
vessel
18HU20160430
Igor Yashayaev
Bedford Institute of Oceanography
CCGS Hudson
Community Standard Description
International Council for the Exploration of the Sea
CCGS Hudson
vessel
CCGS Amundsen
Community Standard Description
International Council for the Exploration of the Sea
CCGS Amundsen
vessel