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2024-03-25T12:22:55Z
ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data
ISO 19115-2:2009(E)
LDEO Database (Version 2019): Global Ocean Surface Water Partial Pressure of CO2 Database: Measurements Performed During 1957-2019 (NCEI Accession 0160492)
2017-02-19
publication
2020-11-14
revision
International DOI Foundation (IDF)
10.3334/cdiac/otg.ndp088(v2015)
NOAA National Centers for Environmental Information
gov.noaa.nodc:0160492
NCEI Archive Management System
0160492
NOAA National Centers for Environmental Information
ncei.info@noaa.gov
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publisher
Taro Takahashi
Columbia University; Lamont-Doherty Earth Observatory (LDEO)
http://www.ldeo.columbia.edu/
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Lamont-Doherty Earth Observatory website
Institution web page
information
resourceProvider
Columbia University; Lamont-Doherty Earth Observatory (LDEO)
http://www.ldeo.columbia.edu/
HTTP
Lamont-Doherty Earth Observatory website
Institution web page
information
resourceProvider
Taro Takahashi
Columbia University; Lamont-Doherty Earth Observatory (LDEO)
taka@ldeo.columbia.edu
http://www.ldeo.columbia.edu/
HTTP
Lamont-Doherty Earth Observatory website
Institution web page
information
principalInvestigator
Alex Kozyr
Carbon Dioxide Information Analysis Center (CDIAC)
Alex.Kozyr@noaa.gov
http://cdiac.ornl.gov
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Carbon Dioxide Information Analysis Center website
Institution web page
information
principalInvestigator
Stewart C. Sutherland
Columbia University; Lamont-Doherty Earth Observatory (LDEO)
suth@ldeo.columbia.edu
http://www.ldeo.columbia.edu/
HTTP
Lamont-Doherty Earth Observatory website
Institution web page
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principalInvestigator
Takahashi, Taro
Lamont-Doherty Earth Observatory (LDEO)
http://www.ldeo.columbia.edu/
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Lamont-Doherty Earth Observatory website
Institution web page
information
author
Sutherland, Stewart C.
Lamont-Doherty Earth Observatory (LDEO)
suth@ldeo.columbia.edu
http://www.ldeo.columbia.edu/
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Lamont-Doherty Earth Observatory website
Institution web page
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author
Kozyr, Alex
Instituto de Investigaciones Marinas
https://www.iim.csic.es/
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Instituto de Investigaciones Marinas website
Institution web page
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author
Columbia University; Lamont-Doherty Earth Observatory (LDEO)
http://www.ldeo.columbia.edu/
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Lamont-Doherty Earth Observatory website
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contributor
tableDigital
Approximately 14.2 million measurements of surface water pCO2 made over the global oceans during 1957-2019 have been processed to make a uniform data file in this Version 2019. Measurements made in open oceans as well as in coastal waters are included. The data assembled include only those measured using equilibrator-CO2 analyzer systems, and have been quality-controlled based upon the stability of the system performance, the reliability of calibrations for CO2 analysis and the internal consistency of data. We have added 567,632 data points comprised of 158 leg/cruise segments in this version. All of these were collected on the 4 ships in our current field program. These 4 ships operate primarily in high latitudes in both hemispheres and have built decades long records in these areas. R/V Nathaniel B. Palmer’s system has been operating since 1995, R/V Laurence M. Gould’s system since 2001, USCGC Healy since 2011, R/V M. Langseth since 2010 (terminated in 2018), and R/V Sikuliaq since 2015. Our contribution to this database through many years of 3.31 million records is primarily for the polar and sub-polar seas. These underway data have been quality controlled and corrected for the time lag and temperature differences between the water intake and pCO2 measurements. In order to allow re-examination of the data in the future, a number of measured parameters relevant to pCO2 in seawater are listed. The overall uncertainty for the pCO2 values listed is estimated to be ± 2.5 uatm on the average. The names and institutional affiliations of the contributors are listed in Table 1. The documentation for the previous versions (V1.0, V2007, V2008, V2009, V2010, V2011, V2012, V2013, V2014, V2015, V2016, V2017, and V2018) of our database are available at NCEI via Ocean Carbon data System (OCADS) LDEO Database web page.
The global pCO2 dataset is available free of charge as a numeric data package (NDP) from the OCADS: https://www.ncei.noaa.gov/access/ocean-carbon-data-system/oceans/LDEO_Underway_Database/. The NDP consists of the oceanographic data files and this printed documentation, which describes the procedures and methods used to obtain the data.
This dataset is available to the public for a wide variety of uses including scientific research and analysis.
Funding Information: NSF
completed
historicalArchive
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https://www.ncei.noaa.gov/access/metadata/landing-page/bin/gfx?id=gov.noaa.nodc:0160492
Preview graphic
PNG
0160492
NCEI ACCESSION NUMBER
2019-03-26
publication
BAROMETRIC PRESSURE
partial pressure of carbon dioxide - water
SALINITY
SEA SURFACE TEMPERATURE
WATER TEMPERATURE
theme
NODC DATA TYPES THESAURUS
carbon dioxide (CO2) gas analyzer
instrument
NODC INSTRUMENT TYPES THESAURUS
chemical
meteorological
physical
surface underway
theme
NODC OBSERVATION TYPES THESAURUS
Columbia University; Lamont-Doherty Earth Observatory
dataCentre
NODC COLLECTING INSTITUTION NAMES THESAURUS
Columbia University; Lamont-Doherty Earth Observatory
dataCentre
NODC SUBMITTING INSTITUTION NAMES THESAURUS
Adriatic Sea
Aegean Sea
Alboran Sea
Andaman Sea or Burma Sea
Arabian Sea
Arafura Sea
Arctic Ocean
Balearic (or Iberian) Sea
Bali Sea
Baltic Sea
Barents Sea
Bass Strait
Bay of Bengal
Bay of Biscay
Bay of Fundy
Beaufort Sea
Bering Sea
Bismarck Sea
Black Sea
Caribbean Sea
Celebes Sea (Sulawesi Sea and Mindanao Sea)
Ceram Sea or Seram Sea
Channel Islands National Marine Sanctuary
Coastal Waters of Alabama
Coastal Waters of Florida
Coastal Waters of Louisiana
Coastal Waters of Mississippi
Coastal Waters of Southeast Alaska and British Columbia
Coastal Waters of Texas
Columbia River estuary - Washington/Oregon
Coral Sea
Cordell Bank National Marine Sanctuary
Davis Strait
East China Sea (Tung Hai)
English Channel
Florida Keys National Marine Sanctuary
Flower Garden Banks National Marine Sanctuary
Gray's Reef National Marine Sanctuary
Great Australian Bight
Greater Farallones National Marine Sanctuary
Gulf of Aden
Gulf of Alaska
Gulf of California
Gulf of Finland
Gulf of Guinea
Gulf of Mexico
Gulf of Oman
Gulf of Riga
Gulf of Suez
Halmahera Sea
Hawaiian Islands Humpback Whale National Marine Sanctuary
Indian Ocean
Inland Sea (Seto Naikai)
Inner Sea - West Coast Scotland
Ionian Sea
Irish Sea and St. George's Channel
Japan Sea
Java Sea
Kattegat, The Sound, Great Belt, Little Belt
Labrador Sea
Laccadive Sea
Ligurian Sea
Makassar Strait
Malacca Straits
Mediterranean Sea
Mediterranean Sea - Eastern Basin
Mediterranean Sea - Western Basin
Monitor National Marine Sanctuary
Monterey Bay National Marine Sanctuary
Mozambique Channel
National Marine Sanctuary of American Samoa
North Atlantic Ocean
North Greenland Sea
North Pacific Ocean
North Sea
Northwestern Passages
Norwegian Sea
Olympic Coast National Marine Sanctuary
Papahānaumokuākea Marine National Monument
Persian Gulf (Gulf of Iran)
Philippine Sea
Red Sea
Rio de la Plata
Rose Atoll Marine National Monument
San Diego Bay
Savu Sea
Sea of Marmara
Skagerrak
Solomon Sea
South Atlantic Ocean
South China Sea (Nan Hai)
South Pacific Ocean
Southern Ocean
Stellwagen Bank National Marine Sanctuary
Strait of Gibraltar
Sulu Sea
Tasman Sea
Timor Sea
Tyrrhenian Sea
Yaquina Bay
Yellow Sea (Hwang Hai)
place
NODC SEA AREA NAMES THESAURUS
oceanography
theme
WMO_CategoryCode
2012-09-15
publication
COLUMBIA/LDEO > Lamont-Doherty Earth Observatory, Columbia University
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
LDEO19570101
project
Cruise ID
LDEO19570101
project
EXPOCODE
Ocean Carbon and Acidification Data System (OCADS) Project
project
Ocean Acidification Search Keywords
LDEO Database Version 2016
LDEOv2016
NDP-088(V2016)(
theme
Data Base Information
EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC PRESSURE
EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > CARBON DIOXIDE
EARTH SCIENCE > OCEANS > OCEAN TEMPERATURE > SEA SURFACE TEMPERATURE
EARTH SCIENCE > OCEANS > OCEAN TEMPERATURE > WATER TEMPERATURE
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
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
Surface underway
theme
OCADS Study Type
LDEO Database
LDEOv2018
theme
Provider Keywords
EQ_PBARO
PCO2_SST
PCO2_SSTPA
PCO2_TEQ
PCO2_TMP
SHIPPBARO
SSS
SST
VCO2_SW
theme
Provider Variable Abbreviations
CO2 ANALYZERS > CO2 ANALYZERS
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
CONTINENT > ASIA > WESTERN ASIA > BLACK SEA
CONTINENT > EUROPE > EASTERN EUROPE > BLACK SEA
OCEAN > ARCTIC OCEAN
OCEAN > ARCTIC OCEAN > BARENTS SEA
OCEAN > ARCTIC OCEAN > BEAUFORT SEA
OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN
OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN > BALTIC SEA
OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN > BAY OF FUNDY
OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN > CARIBBEAN SEA
OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN > DAVIS STRAIT
OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN > GULF OF MEXICO
OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN > IRISH SEA
OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN > MEDITERRANEAN SEA
OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN > MEDITERRANEAN SEA > ADRIATIC SEA
OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN > NORTH SEA
OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN > NORWEGIAN SEA
OCEAN > ATLANTIC OCEAN > SOUTH ATLANTIC OCEAN
OCEAN > INDIAN OCEAN
OCEAN > INDIAN OCEAN > ARABIAN SEA
OCEAN > INDIAN OCEAN > ARABIAN SEA > PERSIAN GULF
OCEAN > INDIAN OCEAN > BAY OF BENGAL
OCEAN > INDIAN OCEAN > RED SEA
OCEAN > PACIFIC OCEAN > CENTRAL PACIFIC OCEAN > AMERICAN SAMOA
OCEAN > PACIFIC OCEAN > CENTRAL PACIFIC OCEAN > HAWAIIAN ISLANDS
OCEAN > PACIFIC OCEAN > NORTH PACIFIC OCEAN
OCEAN > PACIFIC OCEAN > NORTH PACIFIC OCEAN > BERING SEA
OCEAN > PACIFIC OCEAN > NORTH PACIFIC OCEAN > GULF OF ALASKA
OCEAN > PACIFIC OCEAN > NORTH PACIFIC OCEAN > SEA OF JAPAN
OCEAN > PACIFIC OCEAN > SOUTH PACIFIC OCEAN
OCEAN > PACIFIC OCEAN > WESTERN PACIFIC OCEAN > EAST CHINA SEA
OCEAN > PACIFIC OCEAN > WESTERN PACIFIC OCEAN > SOUTH CHINA AND EASTERN ARCHIPELAGIC SEAS
OCEAN > PACIFIC OCEAN > WESTERN PACIFIC OCEAN > SOUTH CHINA SEA
OCEAN > PACIFIC OCEAN > WESTERN PACIFIC OCEAN > YELLOW SEA
OCEAN > SOUTHERN OCEAN
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
World Ocean
place
Provider Geographic Names
accessLevel: Public
otherRestrictions
Cite as: Takahashi, Taro; Sutherland, Stewart C.; Kozyr, Alex (2017). LDEO Database (Version 2019): Global Ocean Surface Water Partial Pressure of CO2 Database: Measurements Performed During 1957-2019 (NCEI Accession 0160492). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.3334/cdiac/otg.ndp088(v2015). 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.
otherRestrictions
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.
Global Surface pCO2 (LDEO) Database V2019
2020-11-04
publication
V2019
https://www.ncei.noaa.gov/access/ocean-carbon-data-system/oceans/LDEO_Underway_Database/
HTTPS
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dataset web page
information
US DOC; NOAA; NESDIS; National Centers for Environmental Information (NCEI)
publisher
documentDigital
Global Surface pCO2 (LDEO) Database
crossReference
collection
Global Surface pCO2 (LDEO) Database V2019
2022
publication
https://www.ncei.noaa.gov/access/ocean-carbon-acidification-data-system/oceans/LDEO_Underway_Database/
HTTPS
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related resource
information
US DOC; NOAA; NESDIS; National Centers for Environmental Information (NCEI)
publisher
documentDigital
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
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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
-180
180
-78.682
88.453
1957-01-01
2019-12-31
In this accession, NCEI has archived multiple versions of these data. The latest (and best) version of these data has the largest version number.
NOAA National Centers for Environmental Information
+1-301-713-3277
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In most cases, electronic downloads of the data are free. However, fees may apply for custom orders, data certifications, copies of analog materials, and data distribution on physical media.
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1616.808
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https://doi.org/10.3334/cdiac/otg.ndp088(v2015)
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NCEI Accession 0160492 v1.1 was published.
2017-02-19T09:03:16Z
NCEI Accession 0160492 v1.1
publication
https://www.ncei.noaa.gov/archive/accession/0160492/1.1
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NCEI Accession 0160492 v1.1
published 2017-02-19T09:03:16Z
download
NCEI Accession 0160492 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.
2017-08-04T23:16:21Z
NCEI Accession 0160492 v2.2
publication
https://www.ncei.noaa.gov/archive/accession/0160492/2.2
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NCEI Accession 0160492 v2.2
published 2017-08-04T23:16:21Z
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NCEI Accession 0160492 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.
2017-09-15T00:27:10Z
NCEI Accession 0160492 v3.3
publication
https://www.ncei.noaa.gov/archive/accession/0160492/3.3
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NCEI Accession 0160492 v3.3
published 2017-09-15T00:27:10Z
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NCEI Accession 0160492 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.
2018-02-10T01:39:39Z
NCEI Accession 0160492 v4.4
publication
https://www.ncei.noaa.gov/archive/accession/0160492/4.4
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NCEI Accession 0160492 v4.4
published 2018-02-10T01:39:39Z
download
NCEI Accession 0160492 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.
2018-02-13T20:53:45Z
NCEI Accession 0160492 v5.5
publication
https://www.ncei.noaa.gov/archive/accession/0160492/5.5
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NCEI Accession 0160492 v5.5
published 2018-02-13T20:53:45Z
download
NCEI Accession 0160492 was revised and v6.6 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.
2018-02-15T21:05:47Z
NCEI Accession 0160492 v6.6
publication
https://www.ncei.noaa.gov/archive/accession/0160492/6.6
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NCEI Accession 0160492 v6.6
published 2018-02-15T21:05:47Z
download
NCEI Accession 0160492 was revised and v7.7 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.
2019-03-27T05:26:44Z
NCEI Accession 0160492 v7.7
publication
https://www.ncei.noaa.gov/archive/accession/0160492/7.7
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NCEI Accession 0160492 v7.7
published 2019-03-27T05:26:44Z
download
NCEI Accession 0160492 was revised and v8.8 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.
2019-06-25T21:34:21Z
NCEI Accession 0160492 v8.8
publication
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NCEI Accession 0160492 v8.8
published 2019-06-25T21:34:21Z
download
NCEI Accession 0160492 was revised and v9.9 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.
2020-11-14T22:34:23Z
NCEI Accession 0160492 v9.9
publication
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NCEI Accession 0160492 v9.9
published 2020-11-14T22:34:23Z
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dataset
Parameter or Variable: VCO2_SW;
Abbreviation: VCO2_SW;
Unit: PPM (Mole fraction concentration of CO2 (ppm) in dried air);
Controlled vocabulary name: partial pressure of carbon dioxide - water;
In-situ / Manipulation / Response variable: in-situ.
Parameter or Variable: PCO2_TMP;
Abbreviation: PCO2_TMP;
Unit: Temperature at which pCO2 was measured in DEG_C;
Controlled vocabulary name: partial pressure of carbon dioxide - water;
In-situ / Manipulation / Response variable: in-situ.
Parameter or Variable: SST;
Abbreviation: SST;
Unit: Sea Surface Temperature in DEG_C;
Controlled vocabulary name: SEA SURFACE TEMPERATURE;
In-situ / Manipulation / Response variable: in-situ.
Parameter or Variable: SSS;
Abbreviation: SSS;
Unit: Sea Surface Salinity;
Controlled vocabulary name: SALINITY;
In-situ / Manipulation / Response variable: in-situ.
Parameter or Variable: PCO2_SST;
Abbreviation: PCO2_SST;
Unit: UATM (Partial Pressure of CO2 in seawater at the temperature in the SST column);
Controlled vocabulary name: partial pressure of carbon dioxide - water;
In-situ / Manipulation / Response variable: in-situ.
Parameter or Variable: PCO2_SSTPA;
Abbreviation: PCO2_SSTPA;
Unit: Partial Pressure of CO2 in seawater (in units of Pascals) at the temperature in the SST column;
Controlled vocabulary name: partial pressure of carbon dioxide - water;
In-situ / Manipulation / Response variable: in-situ.
Parameter or Variable: PCO2_TEQ;
Abbreviation: PCO2_TEQ;
Unit: UATM (Partial Pressure of CO2 in seawater at the temperature in thePCO2_TMP column. This is ordinarily the value that is actually measured;
Controlled vocabulary name: partial pressure of carbon dioxide - water;
In-situ / Manipulation / Response variable: in-situ.
Parameter or Variable: EQ_PBARO;
Abbreviation: EQ_PBARO;
Unit: Pressure in the equilibration vessel in units of millibars;
In-situ / Manipulation / Response variable: in-situ.
Parameter or Variable: SHIPPBARO;
Abbreviation: SHIPPBARO;
Unit: Barometric pressure in the outside air from the ship’s observation system in units of millibars;
In-situ / Manipulation / Response variable: in-situ .
asNeeded
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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.