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2024-03-08T13:21:39Z
ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data
ISO 19115-2:2009(E)
Partial pressure (or fugacity) of carbon dioxide, temperature, salinity and other variables collected from the coastal surface underway observations using carbon dioxide gas analyzer, shower head equilibrator and other instruments from NOAA Ship Gordon Gunter in the North Atlantic Ocean, US North-East coast and Gulf of Mexico during 2017 (NCEI Accession 0163566)
2017-06-20
publication
2017-12-12
revision
International DOI Foundation (IDF)
10.7289/v5cf9nbr
NOAA National Centers for Environmental Information
gov.noaa.nodc:0163566
NCEI Archive Management System
0163566
NOAA National Centers for Environmental Information
ncei.info@noaa.gov
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information
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Kevin F. Sullivan
US DOC; NOAA; OAR; Atlantic Oceanographic and Meteorological Laboratory (AOML)
Kevin.Sullivan@noaa.gov
https://www.aoml.noaa.gov/
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NOAA Atlantic Oceanographic and Meteorological Laboratory website
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US DOC; NOAA; OAR; Atlantic Oceanographic and Meteorological Laboratory (AOML)
https://www.aoml.noaa.gov/
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NOAA Atlantic Oceanographic and Meteorological Laboratory website
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Rik Wanninkhof
US DOC; NOAA; OAR; Atlantic Oceanographic and Meteorological Laboratory (AOML)
Rik.Wanninkhof@noaa.gov
https://www.aoml.noaa.gov/
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NOAA Atlantic Oceanographic and Meteorological Laboratory website
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information
principalInvestigator
Denis Pierrot
US DOC; NOAA; OAR; Atlantic Oceanographic and Meteorological Laboratory (AOML)
Denis.Perrot@noaa.gov
https://www.aoml.noaa.gov/
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principalInvestigator
Kevin F. Sullivan
US DOC; NOAA; OAR; Atlantic Oceanographic and Meteorological Laboratory (AOML)
Kevin.Sullivan@noaa.gov
https://www.aoml.noaa.gov/
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principalInvestigator
Wanninkhof, Rik
author
Sullivan, Kevin F.
NOAA Atlantic Oceanographic and Meteorological Laboratory (AOML)
Kevin.Sullivan@noaa.gov
https://www.aoml.noaa.gov/
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NOAA Atlantic Oceanographic and Meteorological Laboratory website
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author
Pierrot, Denis
NOAA Atlantic Oceanographic and Meteorological Laboratory
https://www.aoml.noaa.gov/
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tableDigital
This dataset includes measurements of mole fraction of CO2 in the equilibrator headspace (dry) at equilibrator temperature, mole fraction of CO2 measured in dry outside air, barometric pressure in the equilibrator headspace, barometric pressure, corrected to sea level, water temperature in equilibrator, sea surface temperature, sea surface salinity, fugacity of CO2 in sea water at SST and 100% humidity, and difference between sea water fCO2 and interpolated air fCO2. The instruments used to collect these data include carbon dioxide (CO2) gas analyzer and shower head chamber equilibrator for autonomous carbon dioxide (CO2) measurement. These data were collected by Rik Wanninkhof and Denis Pierrot of NOAA Atlantic Oceanographic and Meteorological Laboratory as part of NOAA Ship Gordon Gunter research coastal cruises in 2017.
The major objectives of this Coastal project is to provide a high quality measurements of atmospheric and sea surface fCO2, sea surface salinity, temperature, and other parameters, in the North-East US coastal area
Funding Information: NOAA Ocean Acidification Program (East and Gulf Coast OA Observing-SOOP OA, 13353)
Funding Information: NOAA Climate Program Office Program (NOAA Ocean Acidification Program)
completed
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0163566
NCEI ACCESSION NUMBER
2017-11-22
publication
BAROMETRIC PRESSURE
Partial pressure (or fugacity) of carbon dioxide - atmosphere
partial pressure of carbon dioxide - water
SALINITY - SURFACE WATER
theme
NODC DATA TYPES THESAURUS
carbon dioxide (CO2) gas analyzer
showerhead equilibrator
instrument
NODC INSTRUMENT TYPES THESAURUS
chemical
meteorological
physical
surface underway
theme
NODC OBSERVATION TYPES THESAURUS
NOAA Ship Gordon Gunter
platform
NODC PLATFORM NAMES THESAURUS
US DOC; NOAA; OAR; Atlantic Oceanographic and Meteorological Laboratory
dataCentre
NODC COLLECTING INSTITUTION NAMES THESAURUS
US DOC; NOAA; OAR; Atlantic Oceanographic and Meteorological Laboratory
dataCentre
NODC SUBMITTING INSTITUTION NAMES THESAURUS
NODC Ocean Acidification Scientific Data Stewardship (OADS)
project
NODC PROJECT NAMES THESAURUS
Gulf of Mexico
North Atlantic Ocean
place
NODC SEA AREA NAMES THESAURUS
oceanography
theme
WMO_CategoryCode
2012-09-15
publication
DOC/NOAA/OAR/AOML > Atlantic Oceanographic and Meteorological Laboratory, OAR, NOAA, U.S. Department of Commerce
dataCentre
Global Change Master Directory (GCMD) Data Center Keywords
2023
revision
17
Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA)
Greenbelt
MD
https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords
HTTPS
GCMD Keyword Forum Page
Global Change Master Directory (GCMD). 2023. GCMD Keywords, Version 17. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords
information
custodian
GU1701 Transit
GU1701_Leg1-2 Spring EcoMon
GU1702 Bluefin Tuna Survey
GU1703 Transit
GU1703_Leg1-3 Mammal and Seabird
GU1704_Leg1-2 Fall SEAMAP
GU1705 Transit
GU1706 EcoMon
GU1706 Transit
project
Cruise ID
33GG20170505
33GG20170516
33GG20170530
33GG20170610
33GG20170627
33GG20170702
33GG20170721
33GG20170809
33GG20170904
33GG20170917
33GG20171010
33GG20171031
33GG20171112
project
EXPOCODE
Ocean Acidification Program (OAP)
Ocean Carbon and Acidification Data System (OCADS) Project
project
Ocean Acidification Search Keywords
NOAA Ocean Acidification Program (OAP)
project
Research Projects
EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC CHEMISTRY > CARBON AND HYDROCARBON COMPOUNDS > ATMOSPHERIC CARBON DIOXIDE > PARTIAL PRESSURE OF CARBON DIOXIDE
EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC PRESSURE
EARTH SCIENCE > CLIMATE INDICATORS > ATMOSPHERIC/OCEAN INDICATORS > SURFACE SALINITY
EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > CARBON DIOXIDE
EARTH SCIENCE > OCEANS > SALINITY/DENSITY > SALINITY
theme
Global Change Master Directory (GCMD) Science Keywords
2023
revision
17
Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA)
Greenbelt
MD
https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords
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GCMD Keyword Forum Page
Global Change Master Directory (GCMD). 2023. GCMD Keywords, Version 17. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords
information
custodian
Surface underway
theme
OCADS Study Type
PRES_ATM@SSP_hPa
SAL_permil
SST_C
fCO2_SW@SST
theme
Provider Variable Abbreviations
CO2 ANALYZERS > CO2 ANALYZERS
EQUILIBRATORS
instrument
Global Change Master Directory (GCMD) Instrument Keywords
2023
revision
17
Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA)
Greenbelt
MD
https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords
HTTPS
GCMD Keyword Forum Page
Global Change Master Directory (GCMD). 2023. GCMD Keywords, Version 17. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords
information
custodian
Ships
platform
Global Change Master Directory (GCMD) Platform Keywords
2023
revision
17
Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA)
Greenbelt
MD
https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords
HTTPS
GCMD Keyword Forum Page
Global Change Master Directory (GCMD). 2023. GCMD Keywords, Version 17. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords
information
custodian
GORDON GUNTER (call sign: WTEO, ICES code: 33GG, 1998)
platform
ICES/SeaDataNet Ship Codes
OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN
OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN > GULF OF MEXICO
place
Global Change Master Directory (GCMD) Location Keywords
2023
revision
17
Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA)
Greenbelt
MD
https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords
HTTPS
GCMD Keyword Forum Page
Global Change Master Directory (GCMD). 2023. GCMD Keywords, Version 17. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords
information
custodian
North Atlantic Ocean
place
Provider Geographic Names
accessLevel: Public
otherRestrictions
Cite as: Wanninkhof, Rik; Sullivan, Kevin F.; Pierrot, Denis (2017). Partial pressure (or fugacity) of carbon dioxide, temperature, salinity and other variables collected from the coastal surface underway observations using carbon dioxide gas analyzer, shower head equilibrator and other instruments from NOAA Ship Gordon Gunter in the North Atlantic Ocean, US North-East coast and Gulf of Mexico during 2017 (NCEI Accession 0163566). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.7289/v5cf9nbr. Accessed [date].
Distribution liability: NOAA and NCEI make no warranty, expressed or implied, regarding these data, nor does the fact of distribution constitute such a warranty. NOAA and NCEI cannot assume liability for any damages caused by any errors or omissions in these data. If appropriate, NCEI can only certify that the data it distributes are an authentic copy of the records that were accepted for inclusion in the NCEI archives.
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Use liability: NOAA and NCEI cannot provide any warranty as to the accuracy, reliability, or completeness of furnished data. Users assume responsibility to determine the usability of these data. The user is responsible for the results of any application of this data for other than its intended purpose.
Pierrot, D., Neill, C., Sullivan, K., Castle, R., Wanninkhof, R., Lüger, H., Johannessen, T., Olsen, A., Feely, R. A., & Cosca, C. E. (2009). Recommendations for autonomous underway pCO2 measuring systems and data-reduction routines. Deep Sea Research Part II: Topical Studies in Oceanography, 56(8-10), 512-522. https://doi.org/10.1016/j.dsr2.2008.12.005
2009-04
publication
International DOI Foundation (IDF)
https://doi.org/10.1016/j.dsr2.2008.12.005
https://doi.org/10.1016/j.dsr2.2008.12.005
HTTPS
https://doi.org/10.1016/j.dsr2.2008.12.005
journal article
information
Pierrot, Denis
author
Neill, Craig
author
Sullivan, Kevin
author
Castle, Robert
author
Wanninkhof, Rik
author
Lüger, Heike
author
Johannessen, Truls
author
Olsen, Are
author
Feely, Richard A.
author
Cosca, Catherine E.
author
Elsevier BV
publisher
documentDigital
Deep Sea Research Part II: Topical Studies in Oceanography
56(8-10)
ISSN 0967-0645, pp. 512-522
crossReference
project
R/V Gordon Gunter Coastal Cruises
2022
publication
https://www.ncei.noaa.gov/access/ocean-carbon-acidification-data-system/oceans/Coastal/Gordon_Gunter.html
HTTPS
https://www.ncei.noaa.gov/access/ocean-carbon-acidification-data-system/oceans/Coastal/Gordon_Gunter.html
related resource
information
US DOC; NOAA; NESDIS; National Centers for Environmental Information (NCEI)
publisher
documentDigital
crossReference
project
Barbero, Leticia; Wanninkhof, Rik; Pierrot, Denis; Melrose, Donald C.; Rebuck, Nathan D.; Townsend, David W.; Thomas, Maura A.; Taylor, Christopher C. (2018). Dissolved inorganic carbon, total alkalinity, pH on Total Scale, nutrients and other variables collected from profile and discrete sample observations using CTD, Niskin bottle and other instruments onboard NOAA Ship Gordon Gunter in the Gulf of Maine, Georges Bank, and Mid-Atlantic Bight from 2017-05-16 to 2017-06-21 (NCEI Accession 0170177). NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.7289/v57942z8.
2018-01-27
publication
International DOI Foundation (IDF)
https://doi.org/10.7289/v57942z8
NOAA National Centers for Environmental Information
gov.noaa.nodc:0170177
https://www.ncei.noaa.gov/data/oceans/ncei/ocads/metadata/0170177.html
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https://www.ncei.noaa.gov/data/oceans/ncei/ocads/metadata/0170177.html
Related data
information
Barbero, Leticia
University of Miami
author
Wanninkhof, Rik
author
Pierrot, Denis
NOAA Atlantic Oceanographic and Meteorological Laboratory
author
Melrose, Donald C.
NMFS/NEFSC/Narragansett Lab
Chris.Melrose@NOAA.gov
author
Rebuck, Nathan D.
NOAA Fisheries Northeast Fisheries Science Center (NMFS/NEFSC)
nathan.rebuck@noaa.gov
author
Townsend, David W.
University of Maine (UMO)
davidt@umaine.edu
http://www.umaine.edu/
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UMaine website
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information
author
Thomas, Maura A.
University of Maine (UMO)
http://www.umaine.edu/
HTTP
UMaine website
Institution web page
information
author
Taylor, Christopher C.
NMFS/NEFSC/Narragansett Lab
chris.1.taylor@noaa.gov
author
US DOC; NOAA; NESDIS; National Centers for Environmental Information (NCEI)
publisher
tableDigital
crossReference
project
NOAA National Centers for Environmental Information (2022). Ocean Carbon and Acidification Data System (OCADS). NOAA National Centers for Environmental Information. https://www.ncei.noaa.gov/products/ocean-carbon-acidification-data-system
2022-04
publication
https://www.ncei.noaa.gov/products/ocean-carbon-acidification-data-system
HTTPS
https://www.ncei.noaa.gov/products/ocean-carbon-acidification-data-system
OCADS website
information
NOAA National Centers for Environmental Information
author
US DOC; NOAA; NESDIS; National Centers for Environmental Information (NCEI)
publisher
documentDigital
[accessed 2024-02-08]
crossReference
program
eng; USA
utf8
environment
oceans
climatologyMeteorologyAtmosphere
-97.3
-65.2
23.5
44.2
2017-05-05
2017-11-18
In this accession, NCEI has archived multiple versions of these data. The latest (and best) version of these data has the largest version number.
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NCEI Accession 0163566 v1.1 was published.
2017-06-20T20:08:05Z
NCEI Accession 0163566 v1.1
publication
https://www.ncei.noaa.gov/archive/accession/0163566/1.1
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NCEI Accession 0163566 v1.1
published 2017-06-20T20:08:05Z
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NCEI Accession 0163566 was revised and v2.2 was published.
Updates were received for this dataset. These updates were copied into the data/0-data/ directory of this accession. These updates may provide additional files or replace obsolete files. This version contains the most complete and up-to-date representation of this archival information package. All of the files received prior to this update are available in the preceding version of this accession.
2017-07-15T00:18:06Z
NCEI Accession 0163566 v2.2
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NCEI Accession 0163566 v2.2
published 2017-07-15T00:18:06Z
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NCEI Accession 0163566 was revised and v3.3 was published.
Updates were received for this dataset. These updates were copied into the data/0-data/ directory of this accession. These updates may provide additional files or replace obsolete files. This version contains the most complete and up-to-date representation of this archival information package. All of the files received prior to this update are available in the preceding version of this accession.
2017-10-27T23:47:18Z
NCEI Accession 0163566 v3.3
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NCEI Accession 0163566 v3.3
published 2017-10-27T23:47:18Z
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NCEI Accession 0163566 was revised and v4.4 was published.
Updates were received for this dataset. These updates were copied into the data/0-data/ directory of this accession. These updates may provide additional files or replace obsolete files. This version contains the most complete and up-to-date representation of this archival information package. All of the files received prior to this update are available in the preceding version of this accession.
2017-11-18T03:05:11Z
NCEI Accession 0163566 v4.4
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NCEI Accession 0163566 v4.4
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NCEI Accession 0163566 was revised and v5.5 was published.
Updates were received for this dataset. These updates were copied into the data/0-data/ directory of this accession. These updates may provide additional files or replace obsolete files. This version contains the most complete and up-to-date representation of this archival information package. All of the files received prior to this update are available in the preceding version of this accession.
2017-12-12T02:40:09Z
NCEI Accession 0163566 v5.5
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NCEI Accession 0163566 v5.5
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dataset
Parameter or Variable: pCO2 (fCO2) autonomous;
Abbreviation: fCO2_SW@SST;
Unit: uatm;
Observation type: Surface underway;
Measured or calculated: Measured;
Sampling instrument: Seawater pump;
Location of seawater intake: Bow;
Analyzing instrument: Infrared Analyzer: LI-COR model 6262;
Detailed sampling and analyzing information: Pierrot, D., Neill, C., Sullivan, K., Castle, R., Wanninkhof, R., Lüger, H., Johannessen, T., Olsen, A., Feely, R. A., & Cosca, C. E. (2009). Recommendations for autonomous underway pCO2 measuring systems and data-reduction routines. Deep Sea Research Part II: Topical Studies in Oceanography, 56(8-10), 512-522. https://doi.org/10.1016/j.dsr2.2008.12.005;
Equilibrator type: Spray head above dynamic pool, with thermal jacket;
Equilibrator volume: 0.95 L (0.4 L water, 0.55 L headspace);
Is the equilibrator vented or not: Vented;
Water flow rate: 1.5 - 2.0 L/min;
Gas flow rate: 70 - 150 ml/min;
How was temperature inside the equilibrator measured: Hart Scientific model 1523 digital thermometer;
How was pressure inside the equilibrator measured: External Setra 270 connected to the exit of the analyzer;
Drying method for gas: Gas stream passes through a thermoelectric condenser (~5 C) and then through a Perma Pure (Nafion) dryer before reaching the analyzer (90% dry).;
SEA CO2 gas detector manufacturer: Licor, Inc;
SEA CO2 gas detector model: Licor 7000;
SEA CO2 gas detector resolution: 0.01 uatm;
SEA CO2 gas detector uncertainty: 2 uatm;
Standardization technique: The analyzer is calibrated every 4.3 hours with field standards that in turn were calibrated with primary standards that are directly traceable to the WMO scale. The zero gas is ultra-high purity air.;
Standardization frequency: Every 4.3 hours;
Standard gas manufacturer: Scott-Marrin, Inc.;
Standard gas concentration: Std 1: LL100000, 0.00 ppm, owned by AOML, used every ~4.5 hours. Std 2: JA02140, 234.21 ppm, owned by AOML, used every ~4.5 hours. Std 3: JA02689, 406.90 ppm, owned by AOML, used every ~4.5 hours. Std 4: JB03673, 510.35 ppm, owned by AOML, used every ~4.5 hours.;
Standard gas uncertainty: 0.01 ppm;
Water vapor correction method: Details of the data reduction are described in Pierrot, et.al. (2009).;
Temperature correction method: Details of the data reduction are described in Pierrot, et.al. (2009).;
At what temperature was pCO2 reported: In situ sea surface temperature;
Uncertainty: 0.01C;
Quality flag convention: WOCE quality control flags are used: 2 = good value, 3 = questionable value, 4 = bad value;
Method reference: Pierrot, D., Neill, C., Sullivan, K., Castle, R., Wanninkhof, R., Lüger, H., Johannessen, T., Olsen, A., Feely, R. A., & Cosca, C. E. (2009). Recommendations for autonomous underway pCO2 measuring systems and data-reduction routines. Deep Sea Research Part II: Topical Studies in Oceanography, 56(8-10), 512-522. https://doi.org/10.1016/j.dsr2.2008.12.005;
Researcher name: Kevin Sullivan;
Researcher institution: NOAA/AOML.
Parameter or Variable: Sea Surface Temperature;
Abbreviation: SST_C;
Unit: degrees celcius;
Observation type: Surface Underway;
Analyzing instrument: SBE 38, Seabird, Inc.;
Detailed sampling and analyzing information: After sea water pump, ~3 m below sea surface;
Uncertainty: Accuracy: 0.001C, Precision: 0.0003C;
Researcher name: Kevin Sullivan;
Researcher institution: NOAA/AOML.
Parameter or Variable: Sea Surface Salinity;
Abbreviation: SAL_permil;
Observation type: Surface Underway;
Analyzing instrument: SBE 45, Seabird, Inc.;
Uncertainty: Accuracy: +/- 0.005; Precision: 0.0002;
Researcher name: Kevin Sullivan;
Researcher institution: NOAA/AOML.
Parameter or Variable: Atmospheric Pressure;
Abbreviation: PRES_ATM@SSP_hPa;
Unit: hPa;
Analyzing instrument: Vaisala, Model: PTB220;
Uncertainty: Accuracy: +/- 0.5 hPa; Precision: 0.01 hPa;
Researcher name: Kevin Sullivan;
Researcher institution: NOAA/AOML .
asNeeded
Metadata are developed, maintained and distributed by NCEI. Updates are performed as needed to maintain currentness.
NCEI Accession 0163566 was revised and a new version of the archival package was published. Updates to existing archival packages may provide additional files or replace obsolete files. The latest version contains the most complete and up-to-date representation of this archival information package. All of the files received prior to this update are available in the preceding version of this accession. Please see journal.txt in the /about directory for additional details on changes made.
NOAA National Centers for Environmental Information
custodian
carbon dioxide (CO2) gas analyzer
carbon dioxide (CO2) gas analyzer
measures gaseous carbon dioxide
Carbon dioxide gas analyzer has often been referred to as LI-COR, because a lot of researchers choose to use products manufactured by LI-COR incorporation for their carbon dioxide measurement. The main component of a carbon dioxide analyzer is a nondispersive infrared (NDIR) spectroscopic sensors to detect CO2 in a gaseous environment by its characteristic absorption.
Carbon dioxide (CO2) gas analyzer works together with carbon dioxide (CO2) equilibrator (insttypes_id 184) to measure carbon dioxide in the water.
To measure water carbon dioxide, water needs to be continuously supplied to a showerhead inside an equilibrator. As the water flows through the equilibrator chamber, dissolved carbon dioxide exchanges quickly with air in the headspace. This air is then sampled by the carbon dioxide analyzer to determine the mole fraction of CO2 in water.
showerhead equilibrator
showerhead equilibrator
extracts dissolved CO2 from water
A carbon dioxide equilibrator is usually in the shape of a vertical tube, with a showerhead on the top, some headspace, a lot of beads to increase the surface exchange area between water and air, a water seal device at the bottom to allow water to overflow, but prevents air exchange between inside and outside.
Carbon dioxide (CO2) equilibrator works together with carbon dioxide (CO2) gas analyzer (insttypes_id 183) to measure carbon dioxide in the water.
To measure water carbon dioxide, water needs to be continuously supplied to a showerhead inside an equilibrator. As the water flows through the equilibrator chamber, dissolved carbon dioxide exchanges quickly with air in the headspace. This air is then sampled by the carbon dioxide analyzer to determine the mole fraction of CO2 in water.
NOAA Ship Gordon Gunter
Updated information for the vessel GORDON GUNTER from UNITED STATES(US).
Name : GORDON GUNTER
Country(s) : UNITED STATES(US) (ISO Country Code)
Platform Class : 31 Research vessel
Call Sign : WTEO
IMO : 8835255
Pennant : R 336
Title : NOAA Ship
Commissioned Date : 1998-08-28
Current Length : 68.3
Built : 1989-05-12
Previous Name (Notes): Relentless
Notes : Built as the U.S. Naval Ship RELENTLESS (T-AGOS 18). Transferred to NOAA in 1993.
Information Sources:
- http://www.moc.noaa.gov/gu/index.html
- http://www.seasearcher.com/lmiu/vessels/overview.htm?vesselID=341240
Confirmed by NOAA on 2010-09-10.