gov.noaa.nodc:0248626 eng utf8 dataset NOAA National Centers for Environmental Information ncei.info@noaa.gov https://www.ncei.noaa.gov/contact HTTPS NOAA Contact Information Information for contacts at NCEI. information custodian 2026-03-26T08:08:44Z ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) Partial pressure of carbon dioxide, salinity, temperature and other variables collected from surface underway observations from R/V F.G. Walton Smith coastal cruises in the Atlantic Ocean and Gulf of Mexico in 2022 (NCEI Accession 0248626) 2022-02-25 publication 2022-12-16 revision 2022-02-21 creation International DOI Foundation (IDF) 10.25921/9jwa-4v31 NOAA National Centers for Environmental Information gov.noaa.nodc:0248626 NCEI Archive Management System 0248626 NOAA National Centers for Environmental Information ncei.info@noaa.gov https://www.ncei.noaa.gov/contact HTTPS NCEI Contact Information Information for contacts at NCEI. information publisher Kevin F. Sullivan Rosenstiel School of Marine, Atmospheric, and Earth Science Cooperative Institute for Marine and Atmospheric Studies (CIMAS) Kevin.Sullivan@noaa.gov https://cimas.earth.miami.edu/ HTTPS Rosenstiel School of Marine, Atmospheric, and Earth Science Cooperative Institute for Marine and Atmospheric Studies (CIMAS) website Institution web page information resourceProvider NOAA Atlantic Oceanographic and Meteorological Laboratory (AOML) https://www.aoml.noaa.gov/ HTTPS NOAA Atlantic Oceanographic and Meteorological Laboratory (AOML) website Institution web page information resourceProvider Carmen Rodriguez University of Miami Rosenstiel School of Marine and Atmospheric Science (RSMAS) crodriguez@rsmas.miami.edu http://www.rsmas.miami.edu HTTP University of Miami Rosenstiel School of Marine and Atmospheric Science (RSMAS) website Institution web page information principalInvestigator Frank J. Millero University of Miami Rosenstiel School of Marine and Atmospheric Science (RSMAS) FMillero@rsmas.miami.edu http://www.rsmas.miami.edu HTTP University of Miami Rosenstiel School of Marine and Atmospheric Science (RSMAS) website Institution web page information principalInvestigator Denis Pierrot NOAA Atlantic Oceanographic and Meteorological Laboratory (AOML) denis.pierrot@noaa.gov https://www.aoml.noaa.gov/ HTTPS NOAA Atlantic Oceanographic and Meteorological Laboratory (AOML) website Institution web page information principalInvestigator Rik Wanninkhof NOAA Atlantic Oceanographic and Meteorological Laboratory (AOML) Rik.Wanninkhof@noaa.gov https://www.aoml.noaa.gov/ HTTPS NOAA Atlantic Oceanographic and Meteorological Laboratory (AOML) website Institution web page information principalInvestigator Kevin F. Sullivan Rosenstiel School of Marine, Atmospheric, and Earth Science Cooperative Institute for Marine and Atmospheric Studies (CIMAS) Kevin.Sullivan@noaa.gov https://cimas.earth.miami.edu/ HTTPS Rosenstiel School of Marine, Atmospheric, and Earth Science Cooperative Institute for Marine and Atmospheric Studies (CIMAS) website Institution web page information principalInvestigator Rodriguez, Carmen University of Miami Rosenstiel School of Marine and Atmospheric Science (RSMAS) http://www.rsmas.miami.edu HTTP University of Miami Rosenstiel School of Marine and Atmospheric Science (RSMAS) website Institution web page information author Millero, Frank J. University of Miami Rosenstiel School of Marine and Atmospheric Science (RSMAS) http://www.rsmas.miami.edu HTTP University of Miami Rosenstiel School of Marine and Atmospheric Science (RSMAS) website Institution web page information author Pierrot, Denis NOAA Atlantic Oceanographic and Meteorological Laboratory (AOML) https://www.aoml.noaa.gov/ HTTPS NOAA Atlantic Oceanographic and Meteorological Laboratory (AOML) website Institution web page information author Wanninkhof, Rik NOAA Atlantic Oceanographic and Meteorological Laboratory (AOML) https://www.aoml.noaa.gov/ HTTPS NOAA Atlantic Oceanographic and Meteorological Laboratory (AOML) website Institution web page information author Sullivan, Kevin F. Rosenstiel School of Marine, Atmospheric, and Earth Science Cooperative Institute for Marine and Atmospheric Studies (CIMAS) Kevin.Sullivan@noaa.gov https://cimas.earth.miami.edu/ HTTPS Rosenstiel School of Marine, Atmospheric, and Earth Science Cooperative Institute for Marine and Atmospheric Studies (CIMAS) website Institution web page information author University of Miami (UM) http://www.miami.edu/ HTTP University of Miami (UM) website Institution web page information contributor NOAA Atlantic Oceanographic and Meteorological Laboratory (AOML) https://www.aoml.noaa.gov/ HTTPS NOAA Atlantic Oceanographic and Meteorological Laboratory (AOML) website Institution web page information contributor University of Miami Rosenstiel School of Marine and Atmospheric Science (RSMAS) http://www.rsmas.miami.edu HTTP University of Miami Rosenstiel School of Marine and Atmospheric Science (RSMAS) website Institution web page information contributor tableDigital This dataset includes surface underway, chemical, meteorological and physical data collected from R/V F.G. Walton Smith in the Gulf of Mexico and North Atlantic Ocean in 2022. These data include air-sea difference of partial pressure of carbon dioxide (pCO2), pCO2 in atmosphere, pCO2 in water, barometric pressure, sea surface salinity and temperature. The instruments used to collect these data include barometric pressure sensor, carbon dioxide gas analyzer, shower head chamber equilibrator for autonomous carbon dioxide measurement and thermosalinographs. The Global Coastal Carbon Data Project data includes the bottle (discrete) and surface (underway) carbon-related measurements from coastal research cruises, the data from time series cruises and coastal moorings. The coastal regions data are very important for the understanding of carbon cycle on the continental margins. This dataset is available to the public for a wide variety of uses including scientific research and analysis. Funding Information: NOAA (NOAA Climate Program Office; NOAA Ocean Acidification Program) completed historicalArchive NOAA National Centers for Environmental Information ncei.info@noaa.gov https://www.ncei.noaa.gov/contact HTTPS NCEI Contact Information Information for contacts at NCEI. information pointOfContact asNeeded NCEI Accession 0248626 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. https://www.ncei.noaa.gov/access/metadata/landing-page/bin/gfx?id=gov.noaa.nodc:0248626 Preview graphic PNG 0248626 NCEI ACCESSION NUMBER 2022-02-21 publication BAROMETRIC PRESSURE Partial pressure (or fugacity) of carbon dioxide - atmosphere partial pressure of carbon dioxide - water SALINITY - SURFACE WATER WATER TEMPERATURE theme NODC DATA TYPES THESAURUS barometric pressure sensor carbon dioxide (CO2) gas analyzer pump sampler showerhead equilibrator temperature sensor thermosalinograph instrument NODC INSTRUMENT TYPES THESAURUS chemical meteorological physical surface underway theme NODC OBSERVATION TYPES THESAURUS R/V F.G. Walton Smith platform NODC PLATFORM NAMES THESAURUS NOAA Atlantic Oceanographic and Meteorological Laboratory University of Miami University of Miami Rosenstiel School of Marine and Atmospheric Science dataCentre NODC COLLECTING INSTITUTION NAMES THESAURUS NOAA Atlantic Oceanographic and Meteorological Laboratory dataCentre NODC SUBMITTING INSTITUTION NAMES THESAURUS Ship of Opportunity Programme (SOOP) Surface Ocean CO2 Atlas (SOCAT) US DOC; NOAA; Office of Oceanic and Atmospheric Research; Ocean Acidification Program (OAP) 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 U-MIAMI/RSMAS > Rosenstiel School of Marine and Atmospheric Science, University of Miami dataCentre Global Change Master Directory (GCMD) Data Center Keywords 2026 revision 23 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). 2025. GCMD Keywords, Version 21. 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 WS22022 WS22072, SFER WS22085, FlotsUM WS22086, FlotsUM WS22092, FlotsUM WS22093, FlotsUM WS22136 WS22141, SFER WS22281, SFER WS22293 WS22295, FLOTSUM WS22296, FLOTSUM WS22309, FLOTSUM WS22337, SFER project Cruise ID 33WA20220122 33WA20220313 33WA20220326 33WA20220327 33WA20220402 33WA20220403 33WA20220516 33WA20220521 33WA20221008 33WA20221020 33WA20221022 33WA20221023 33WA20221105 33WA20221203 project EXPOCODE Ocean Carbon and Acidification Data System (OCADS) Project project Ocean Acidification Search Keywords AOML_SOOP_CO2 project Reference Section ID 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 > OCEAN TEMPERATURE > WATER TEMPERATURE EARTH SCIENCE > OCEANS > SALINITY/DENSITY > SALINITY theme Global Change Master Directory (GCMD) Science Keywords 2026 revision 23 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). 2025. GCMD Keywords, Version 21. 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 Coastal Cruises OA Cruises theme Provider Keywords PRES_ATM@SSP_hPa PRES_EQU_hPa QC_SUBFLAG SAL_permil SST_C TEMP_EQU_C WOCE_QC_FLAG dfCO2_uatm fCO2_ATM_interpolated_uatm fCO2_SW@SST_uatm xCO2_ATM_interpolated_ppm xCO2_ATM_ppm xCO2_EQU_ppm theme Provider Variable Abbreviations BAROMETERS > BAROMETERS CO2 ANALYZERS > CO2 ANALYZERS EQUILIBRATORS TEMPERATURE SENSORS > TEMPERATURE SENSORS THERMOSALINOGRAPHS instrument Global Change Master Directory (GCMD) Instrument Keywords 2026 revision 23 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). 2025. GCMD Keywords, Version 21. 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 F. G. Walton Smith (call sign: WCZ6292, ICES code: 33WA, 1999-) platform ICES/SeaDataNet Ship Codes OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN > GULF OF AMERICA OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN > GULF OF MEXICO place Global Change Master Directory (GCMD) Location Keywords 2026 revision 23 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). 2025. GCMD Keywords, Version 21. 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 Gulf of Mexico North Atlantic Ocean place Provider Geographic Names accessLevel: Public otherRestrictions Cite as: Rodriguez, Carmen; Millero, Frank J.; Pierrot, Denis; Wanninkhof, Rik; Sullivan, Kevin F. (2022). Partial pressure of carbon dioxide, salinity, temperature and other variables collected from surface underway observations from R/V F.G. Walton Smith coastal cruises in the Atlantic Ocean and Gulf of Mexico in 2022 (NCEI Accession 0248626). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.25921/9jwa-4v31. 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. 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 related 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 Walton Smith Coastal Cruises 2022 publication https://www.ncei.noaa.gov/access/ocean-carbon-acidification-data-system/oceans/Coastal/Walton_Smith.html HTTPS https://www.ncei.noaa.gov/access/ocean-carbon-acidification-data-system/oceans/Coastal/Walton_Smith.html Related resource information NOAA 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 HTTPS https://www.ncei.noaa.gov/products/ocean-carbon-acidification-data-system OCADS website information NOAA National Centers for Environmental Information author NOAA National Centers for Environmental Information (NCEI) publisher documentDigital [accessed 2024-02-08] crossReference program eng; USA utf8 environment oceans climatologyMeteorologyAtmosphere -84.09 -79.76 24 28.17 2022-01-22 2022-12-09 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 ncei.info@noaa.gov pointOfContact 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. Contact NCEI for other distribution options and instructions. Originator data format 4 https://www.ncei.noaa.gov/data/oceans/ncei/ocads/metadata/0248626.html HTTPS Web browser Project Metadata Navigate directly to the URL for a descriptive web page with download links. information https://doi.org/10.25921/9jwa-4v31 HTTPS Web browser NCEI Dataset Landing Page Navigate directly to the URL for a descriptive web page with download links. information https://www.ncei.noaa.gov/archive/accession/oas/248626 HTTPS Web browser Descriptive Information Navigate directly to the URL for a descriptive web page with download links. information https://www.ncei.noaa.gov/archive/accession/download/248626 HTTPS Web browser HTTPS Navigate directly to the URL for data access and direct download. download ftp://ftp-oceans.ncei.noaa.gov/nodc/archive/arc0196/0248626/ FTP Any FTP client FTP These data are available through the File Transfer Protocol (FTP). FTP is no longer supported by most internet browsers. You may copy and paste the FTP link to the data into an FTP client (e.g., FileZilla or WinSCP). download dataset NCEI Accession 0248626 v1.1 was published. 2022-02-25T22:46:09Z NCEI Accession 0248626 v1.1 publication https://www.ncei.noaa.gov/archive/accession/0248626/1.1 HTTPS NCEI Accession 0248626 v1.1 published 2022-02-25T22:46:09Z download NCEI Accession 0248626 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. 2022-04-08T19:23:33Z NCEI Accession 0248626 v2.2 publication https://www.ncei.noaa.gov/archive/accession/0248626/2.2 HTTPS NCEI Accession 0248626 v2.2 published 2022-04-08T19:23:33Z download NCEI Accession 0248626 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. 2022-06-10T20:10:25Z NCEI Accession 0248626 v3.3 publication https://www.ncei.noaa.gov/archive/accession/0248626/3.3 HTTPS NCEI Accession 0248626 v3.3 published 2022-06-10T20:10:25Z download NCEI Accession 0248626 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. 2022-12-16T20:10:40Z NCEI Accession 0248626 v4.4 publication https://www.ncei.noaa.gov/archive/accession/0248626/4.4 HTTPS NCEI Accession 0248626 v4.4 published 2022-12-16T20:10:40Z download dataset Parameter or Variable: xCO2_EQU_ppm; Abbreviation: xCO2_EQU_ppm; Unit: Mole fraction of CO2 in the equilibrator headspace (dry) at equilibrator temperature (ppm); Controlled vocabulary name: partial pressure of carbon dioxide - water; In-situ / Manipulation / Response variable: in-situ observation Parameter or Variable: xCO2_ATM_ppm; Abbreviation: xCO2_ATM_ppm; Unit: Mole fraction of CO2 measured in dry outside air (ppm); Controlled vocabulary name: Partial pressure (or fugacity) of carbon dioxide - atmosphere; In-situ / Manipulation / Response variable: in-situ observation Parameter or Variable: xCO2_ATM_interpolated_ppm; Abbreviation: xCO2_ATM_interpolated_ppm; Unit: Mole fraction of CO2 in outside air associated with each water analysis. These values are interpolated between the bracketing averaged good xCO2_ATM analyses (ppm); Controlled vocabulary name: Partial pressure (or fugacity) of carbon dioxide - atmosphere; In-situ / Manipulation / Response variable: in-situ observation Parameter or Variable: PRES_EQU_hPa; Abbreviation: PRES_EQU_hPa; Unit: Barometric pressure in the equilibrator headspace (hPa); In-situ / Manipulation / Response variable: in-situ observation Parameter or Variable: PRES_ATM@SSP_hPa; Abbreviation: PRES_ATM@SSP_hPa; Unit: Barometric pressure measured outside, corrected to sea level (hPa); Controlled vocabulary name: BAROMETRIC PRESSURE; In-situ / Manipulation / Response variable: in-situ observation Parameter or Variable: TEMP_EQU_C; Abbreviation: TEMP_EQU_C; Unit: Water temperature in equilibrator (°C); In-situ / Manipulation / Response variable: in-situ observation Parameter or Variable: SST_C; Abbreviation: SST_C; Unit: Sea surface temperature (°C); Controlled vocabulary name: SEA SURFACE TEMPERATURE; In-situ / Manipulation / Response variable: in-situ observation Parameter or Variable: SAL_permil; Abbreviation: SAL_permil; Unit: Sea surface salinity on Practical Salinity Scale (o/oo); Controlled vocabulary name: SALINITY; In-situ / Manipulation / Response variable: in-situ observation Parameter or Variable: fCO2_SW@SST_uatm; Abbreviation: fCO2_SW@SST_uatm; Unit: Fugacity of CO2 in sea water at SST and 100% humidity (μatm); Controlled vocabulary name: partial pressure of carbon dioxide - water; In-situ / Manipulation / Response variable: in-situ observation Parameter or Variable: fCO2_ATM_interpolated_uatm; Abbreviation: fCO2_ATM_interpolated_uatm; Unit: Fugacity of CO2 in air corresponding to the interpolated xCO2 at SST and 100% humidity (μatm); Controlled vocabulary name: Partial pressure (or fugacity) of carbon dioxide - atmosphere; In-situ / Manipulation / Response variable: in-situ observation Parameter or Variable: dfCO2_uatm; Abbreviation: dfCO2_uatm; Unit: Sea water fCO2 minus interpolated air fCO2 (μatm); In-situ / Manipulation / Response variable: in-situ observation Parameter or Variable: WOCE_QC_FLAG; Abbreviation: WOCE_QC_FLAG; Unit: Quality control flag for fCO2 values (2=good, 3=questionable); In-situ / Manipulation / Response variable: in-situ observation Parameter or Variable: QC_SUBFLAG; Abbreviation: QC_SUBFLAG; Unit: Quality control subflag for fCO2 values, provides explanation when QC flag=3; In-situ / Manipulation / Response variable: in-situ observation asNeeded Metadata are developed, maintained and distributed by NCEI. Updates are performed as needed to maintain currentness. NOAA National Centers for Environmental Information custodian barometric pressure sensor barometric pressure sensor instrument used to measure the atmospheric pressure. 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. pump sampler pump sampler generic name for instrument that pumps water from depth to be filtered through a sieve 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. temperature sensor temperature sensor A sensor used to measure temperature. thermosalinograph thermosalinograph automated sea surface temperature and salinity instrument, usually attached to the hull of a ship Thermosalinograph is an automated Sea Surface Temperature and Salinity measurement system making measurement on board a ship using a water intake. [https://www.aoml.noaa.gov/phod/tsg/about.php 2021-01-29] R/V F.G. Walton Smith R/V; RSMAS Univ. of Miami; built 1999; active as July 2007 University of Miami assigned a new call sign to F.G. WALTON SMITH on January 13, 2021. The previous call sign was WCZ6292.