gov.noaa.nodc:0247604 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 2026-07-23T13:13:46Z ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) Surface underway measurements of partial pressure of carbon dioxide (pCO2) in water and atmosphere, sea surface temperature, sea surface salinity and barometric pressure obtained during the M/V Tavastland cruises in the Baltic Sea in 2021 (NCEI Accession 0247604) 2022-02-11 publication 2022-02-10 creation International DOI Foundation (IDF) 10.25921/v7vt-1p31 NOAA National Centers for Environmental Information gov.noaa.nodc:0247604 NCEI Archive Management System 0247604 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 Tobias Steinhoff GEOMAR Helmholtz Centre for Ocean Research Kiel (GEOMAR) tsteinhoff@geomar.de http://www.geomar.de/ HTTP GEOMAR Helmholtz Centre for Ocean Research Kiel (GEOMAR) website Institution web page information resourceProvider GEOMAR Helmholtz Centre for Ocean Research Kiel (GEOMAR) http://www.geomar.de/ HTTP GEOMAR Helmholtz Centre for Ocean Research Kiel (GEOMAR) website Institution web page information resourceProvider Anna Willstrand Wranne Swedish Meteorological and Hydrological Institute (SMHI) anna.wranne@smhi.se https://www.smhi.se/ HTTPS Swedish Meteorological and Hydrological Institute (SMHI) website Institution web page information principalInvestigator Tobias Steinhoff GEOMAR Helmholtz Centre for Ocean Research Kiel (GEOMAR) tsteinhoff@geomar.de http://www.geomar.de/ HTTP GEOMAR Helmholtz Centre for Ocean Research Kiel (GEOMAR) website Institution web page information principalInvestigator Willstrand Wranne, Anna Swedish Meteorological and Hydrological Institute https://www.smhi.se/ HTTPS Swedish Meteorological and Hydrological Institute (SMHI) website Institution web page information author Steinhoff, Tobias GEOMAR Helmholtz Centre for Ocean Research Kiel http://www.geomar.de/ HTTP GEOMAR Helmholtz Centre for Ocean Research Kiel (GEOMAR) website Institution web page information author GEOMAR Helmholtz Centre for Ocean Research Kiel (GEOMAR) http://www.geomar.de/ HTTP GEOMAR Helmholtz Centre for Ocean Research Kiel (GEOMAR) website Institution web page information contributor Swedish Meteorological and Hydrological Institute (SMHI) https://www.smhi.se/ HTTPS Swedish Meteorological and Hydrological Institute (SMHI) website Institution web page information contributor tableDigital This dataset includes surface underway measurements of partial pressure of carbon dioxide (pCO2) in water and atmosphere, sea surface temperature, sea surface salinity and barometric pressure collected during the M/V Tavastland cruises in the Baltic Sea in from 2021-05-01 to 2021-12-06. A General Oceanics (GO) pCO2 system (model 8050) was used for pCO2 measurements. The system is described in detail in Pierrot (2009). Surface water is pumped continuously from the intake to the equilibrator. The equilibrator contains a water spray head, and as the water flows through it the dissolved CO2 equilibrates with the headspace. The headspace is dried and xCO2 is determined by an infrared sensor. Calculations were performed following Pierrot (2009). The water is drawn directly from the sea chest at 6m depth. A temperature sensor (SBE38) is installed close to the intake. The water is pumped through 5 m of a piping connecting to the GO system. The equilibrator pressure is measured using a differential pressure sensor (inside/outside equilibrator) and an absolute pressure sensor next to the equilibrator. The air inlet is located 30 m above sea level next to the ship's funnel and the air line is constantly flushed with atmospheric air. This dataset is available to the public for a wide variety of uses including scientific research and analysis. Funding Information: BONUS (Bonus Integral, call2015-101) 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 https://www.ncei.noaa.gov/access/metadata/landing-page/bin/gfx?id=gov.noaa.nodc:0247604 Preview graphic PNG 0247604 NCEI ACCESSION NUMBER 2022-01-19 publication BAROMETRIC PRESSURE Partial pressure (or fugacity) of carbon dioxide - atmosphere partial pressure of carbon dioxide - water SALINITY - SURFACE WATER WATER TEMPERATURE xCO2 seawater theme NODC DATA TYPES THESAURUS barometric pressure sensor carbon dioxide (CO2) gas analyzer salinometer temperature sensor instrument NODC INSTRUMENT TYPES THESAURUS chemical meteorological physical surface underway theme NODC OBSERVATION TYPES THESAURUS UNKNOWN PLATFORMS OF USSR platform NODC PLATFORM NAMES THESAURUS GEOMAR Helmholtz Centre for Ocean Research Kiel Swedish Meteorological and Hydrological Institute dataCentre NODC COLLECTING INSTITUTION NAMES THESAURUS GEOMAR Helmholtz Centre for Ocean Research Kiel dataCentre NODC SUBMITTING INSTITUTION NAMES THESAURUS Ship of Opportunity Programme (SOOP) Surface Ocean CO2 Atlas (SOCAT) project NODC PROJECT NAMES THESAURUS Baltic Sea place NODC SEA AREA NAMES THESAURUS oceanography theme WMO_CategoryCode 2012-09-15 publication DE/GEOMAR > GEOMAR - Helmholtz Centre for Ocean Research Kiel, Germany dataCentre Global Change Master Directory (GCMD) Data Center Keywords 2026 revision 24 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 TL2117 TL2118-1 TL2118-2 TL2119 TL2120 TL2121 TL2122 TL2123 TL2124 TL2125 TL2126 TL2128 TL2133 TL2134 TL2135 TL2136 TL2138 TL2140 project Cruise ID 77XT20210501 77XT20210503 77XT20210508 77XT20210510 77XT20210517 77XT20210524 77XT20210730 77XT20210803 77XT20210809 77XT20210816 77XT20210823 77XT20210907 77XT20211015 77XT20211018 77XT20211025 77XT20211101 77XT20211118 77XT20211129 project EXPOCODE Ocean Carbon and Acidification Data System (OCADS) Project project Ocean Acidification Search Keywords SOOP 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 24 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 SOOP Tavastland VOS theme Provider Keywords Atm. Pressure [mbar] Atm. xCO2 (dry) [ppm] Equi Press [mbar] Equi Temp [deg C] SSS SST [deg C] pCO2 (SST, 100hum) theme Provider Variable Abbreviations BAROMETERS > BAROMETERS CO2 ANALYZERS > CO2 ANALYZERS SALINOMETERS TEMPERATURE SENSORS > TEMPERATURE SENSORS instrument Global Change Master Directory (GCMD) Instrument Keywords 2026 revision 24 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 Ships platform Global Change Master Directory (GCMD) Platform Keywords 2026 revision 24 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 OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN > BALTIC SEA place Global Change Master Directory (GCMD) Location Keywords 2026 revision 24 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 Baltic Sea place Provider Geographic Names accessLevel: public otherRestrictions Cite as: Willstrand Wranne, Anna; Steinhoff, Tobias (2022). Surface underway measurements of partial pressure of carbon dioxide (pCO2) in water and atmosphere, sea surface temperature, sea surface salinity and barometric pressure obtained during the M/V Tavastland cruises in the Baltic Sea in 2021 (NCEI Accession 0247604). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.25921/v7vt-1p31. 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 Steinhoff, T. (2010). Carbon and nutrient fluxes in the North Atlantic Ocean. Dissertation. http://eldiss.uni-kiel.de/macau/receive/dissertation_diss_00005704 2010 publication http://eldiss.uni-kiel.de/macau/receive/dissertation_diss_00005704 HTTP http://eldiss.uni-kiel.de/macau/receive/dissertation_diss_00005704 Related resource information crossReference project Baltic Sea Data 2022 publication https://www.ncei.noaa.gov/access/ocean-carbon-acidification-data-system/oceans/Coastal/Baltic.html HTTPS https://www.ncei.noaa.gov/access/ocean-carbon-acidification-data-system/oceans/Coastal/Baltic.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 10.908 25.398 53.975 65.648 2021-05-01 2021-12-06 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 8.616 https://www.ncei.noaa.gov/data/oceans/ncei/ocads/metadata/0247604.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/v7vt-1p31 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/247604 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/247604 HTTPS Web browser HTTPS Navigate directly to the URL for data access and direct download. download ftp://ftp-oceans.ncei.noaa.gov/nodc/archive/arc0154/0247604/ 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 0247604 v1.1 was published. 2022-02-11T22:53:14Z NCEI Accession 0247604 v1.1 publication https://www.ncei.noaa.gov/archive/accession/0247604/1.1 HTTPS NCEI Accession 0247604 v1.1 published 2022-02-11T22:53:14Z download dataset Parameter or Variable: pCO2 (fCO2) autonomous; Abbreviation: pCO2 (SST, 100hum); Unit: µatm; Observation type: underway; Sampling instrument: water collection with pump; Location of seawater intake: front, starboard; Depth of seawater intake: 6 m; Analyzing instrument: General Oceanics GO pCO2 system. SOP05, Dickson, A.G., Sabine, C. L. and Christian, J.R. (2007). Guide to best Practices for Ocean CO2 measurements; Pierrot, D. et al. (2009), Recommendations for autonomous underway pCO2 measuring systems and data-reduction routines; Detailed sampling and analyzing information: water collection with pump SOP05, Dickson, A.G., Sabine, C. L. and Christian, J.R. (2007). Guide to best Practices for Ocean CO2 measurements; Pierrot, D. et al. (2009), Recommendations for autonomous underway pCO2 measuring systems and data-reduction routines NaN; Equilibrator type: spray head; Equilibrator volume: 1; Is the equilibrator vented or not: Vented; Water flow rate: 2.5; Gas flow rate: 0.3; How was temperature inside the equilibrator measured: Equilibrator temperature is measured by a Fluke Hart 1523, wich is known to be stable over a longer period. It was calibrated in Nov. 2019.; How was pressure inside the equilibrator measured: The equilibrator is open to the atmosphere. Since no absolute pressure sensor was installed the pressure from the atmospheric pressure sensor was used and 4.3 mbar were added (see above). A SETRA difference pressure sensor is attached to the equilibrator.; Drying method for gas: Peltier and Nafion dryer; SEA CO2 gas detector manufacturer: Licor; SEA CO2 gas detector model: 7000; SEA CO2 gas detector resolution: 0.01; SEA CO2 gas detector uncertainty: 0.1; Standardization technique: Regular use of 3 non-zero reference gases; Standardization frequency: every 6 hours; Standard gas manufacturer: Deuste, Germany. The gases were calibrated against WMO traceable standard gases.; Standard gas concentration: 200.0, 400.0, 799.1; Standard gas uncertainty: < 0.1; Water vapor correction method: The dried sample was corrected to 100% humidity which was calculated following Weiss and Price (1980). Nitrous Oxide solubility in water and seawater.; Temperature correction method: The temperature correction between equilibrator temperature and intake temperature was done following Takahashi et al. (1993). Seasonal variation of CO2 and nutrients in the high-latitude Surface Oceans: A comparative study.; At what temperature was pCO2 reported: intake temperature of seawater; Uncertainty: < 10 µatm; Quality flag convention: NaN; Method reference: SOP05, Dickson, A.G., Sabine, C. L. and Christian, J.R. (2007). Guide to best Practices for Ocean CO2 measurements; Pierrot, D. et al. (2009), Recommendations for autonomous underway pCO2 measuring systems and data-reduction routines; QC steps: Yes Parameter or Variable: SST [deg C]; Abbreviation: SST [deg C]; Unit: Deg Celsius; Controlled vocabulary name: SEA SURFACE TEMPERATURE; Observation type: underway; In-situ / Manipulation / Response variable: in-situ observation; Sampling instrument: water collection with pump; Analyzing instrument: Seabird sensors; Detailed sampling and analyzing information: intake temperature was measured close to the intake using a SBE38; Uncertainty: 0.05 °C; Method reference: Seabird SBE45 and SBE38 manual Parameter or Variable: SSS; Abbreviation: SSS; Controlled vocabulary name: SALINITY; Observation type: underway; In-situ / Manipulation / Response variable: in-situ observation; Sampling instrument: water collection with pump; Analyzing instrument: Seabird sensors SBE45; Uncertainty: 0.1; Method reference: Seabird SBE45 manual Parameter or Variable: atmospheric pressure at sea level; Abbreviation: Atm. Pressure [mbar]; Unit: mbar; Controlled vocabulary name: BAROMETRIC PRESSURE; Observation type: underway; In-situ / Manipulation / Response variable: in-situ observation; Analyzing instrument: Druck barometer; Detailed sampling and analyzing information: The atm. Pressure is measured at approximately 30 m height and is corrected to sea surface.; Uncertainty: 0.2% Parameter or Variable: water temperature inside the equilibrator; Abbreviation: Equi Temp [deg C]; Unit: °C; Observation type: underway; In-situ / Manipulation / Response variable: in-situ observation; Analyzing instrument: Fluke Hart 1523; Uncertainty: 0.05 °C Parameter or Variable: pressure inside the equilibrator; Abbreviation: Equi Press [mbar]; Unit: mbar; Observation type: underway; In-situ / Manipulation / Response variable: in-situ observation; Analyzing instrument: SETRA (Model 239); Detailed sampling and analyzing information: The equilibrator is open to the atmosphere. A SETRA difference pressure sensor is attached to the equilibrator measuring the pressure difference between the in- and outside of the equilibrator. There was no absolute pressure sensor istalled next to th einstrument. This was done later and based on the data it was found that the pressure inside the engine room is 4.3 mbar higher than the atmospheric pressure (+- 0.1 mbar).; Uncertainty: <0.5 Parameter or Variable: Atm. xCO2 (dry) [ppm]; Abbreviation: Atm. xCO2 (dry) [ppm]; Unit: mole fraction of CO2 of atmospheric air in ppm; Controlled vocabulary name: Partial pressure (or fugacity) of carbon dioxide - atmosphere; 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. salinometer salinometer generic salinometer use salinometer when the instrument type used is unclear but the data include salinity measurements temperature sensor temperature sensor A sensor used to measure temperature. UNKNOWN PLATFORMS OF USSR UNKNOWN PLATFORMS OF USSR