gov.noaa.nodc:0170784 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 2026-07-10T19:39:06Z ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) Water temperature, partial pressure of carbon dioxide, and other data from CTD, gas and optical sensors taken from the slocum glider in the Gulf of Alaska from 2016-05-19 to 2017-05-18 (NCEI Accession 0170784) 2018-02-26 publication 2018-02-23 creation NOAA National Centers for Environmental Information gov.noaa.nodc:0170784 NCEI Archive Management System 0170784 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 Brita Irving University of Alaska Fairbanks (UAF) bkirving@alaska.edu https://www.uaf.edu/ HTTPS University of Alaska Fairbanks (UAF) website Institution web page information resourceProvider University of Alaska Fairbanks (UAF) https://www.uaf.edu/ HTTPS University of Alaska Fairbanks (UAF) website Institution web page information resourceProvider Claudine Hauri International Arctic Research Center (IARC) chauri@alaska.edu http://www.iarc.uaf.edu/ HTTP International Arctic Research Center (IARC) website Institution web page information principalInvestigator Andrew McDonnell University of Alaska Fairbanks, Institute of Marine Science (IMS/UAF) amcdonnell@alaska.edu https://www.uaf.edu/cfos/research/institute-of-marine-scien/ HTTPS University of Alaska Fairbanks, Institute of Marine Science (IMS/UAF) website Institution web page information collaborator Peter Winsor University of Alaska Fairbanks, Institute of Marine Science (IMS/UAF) pwinsor@alaska.edu https://www.uaf.edu/cfos/research/institute-of-marine-scien/ HTTPS University of Alaska Fairbanks, Institute of Marine Science (IMS/UAF) website Institution web page information collaborator Hauri, Claudine University of Alaska - Fairbanks; International Arctic Research Center (IARC) http://www.iarc.uaf.edu/ HTTP International Arctic Research Center (IARC) website Institution web page information author Irving, Brita University of Alaska Fairbanks author McDonnell, Andrew University of Alaska - Fairbanks; Institute of Marine Science (UAK/IMS) https://www.uaf.edu/cfos/research/institute-of-marine-scien/ HTTPS University of Alaska Fairbanks, Institute of Marine Science (IMS/UAF) website Institution web page information author Winsor, Peter University of Alaska - Fairbanks; Institute of Marine Science (UAK/IMS) pwinsor@alaska.edu https://www.uaf.edu/cfos/research/institute-of-marine-scien/ HTTPS University of Alaska Fairbanks, Institute of Marine Science (IMS/UAF) website Institution web page information author Statscewich, Hank author International Arctic Research Center (IARC) http://www.iarc.uaf.edu/ HTTP International Arctic Research Center (IARC) website Institution web page information contributor University of Alaska Fairbanks, Institute of Marine Science (IMS/UAF) https://www.uaf.edu/cfos/research/institute-of-marine-scien/ HTTPS University of Alaska Fairbanks, Institute of Marine Science (IMS/UAF) website Institution web page information contributor tableDigital The waters around Alaska are undergoing unprecedented environmental change that includes warming temperatures, extensive sea-ice losses, increases in storm frequency/magnitude, freshening, elevated rates of coastal erosion, increasing inputs of terrestrial organic matter, and ocean acidification, all of which could impact cycling of carbon in the Arctic at a fast pace. Exploration and development of offshore energy resources may also have an effect on biology and/or the stability of the water column, and could therefore indirectly influence the carbon cycle. Traditional ship based observations are operationally expensive and are also insufficient to provide the type of spatial and temporal coverage of dissolved CO2 measurements required for an improved conceptual understanding and quantitative assessment of the region’s carbon cycle. The main goal of this project was the development of a Carbon Glider to autonomously measure spatial and temporal high-resolution data of dissolved CO2 throughout the water column. This involved the design of a customized Pro-Oceanus pCO2 sensor, integration of the physical, power, communication, and software systems of the sensor with the Teledyne Webb Research (TWR) Slocum Glider, and development of glider hover missions that allow for full sensor equilibration and the use of sensors with slower response times. As a result of this project, we brought the Carbon Glider to a Technology Readiness Level 6 (TRL-6 per NASA), with demonstrated capacity of pCO2 data collection during glider flight missions at sea. However, some issues remain to be solved before the Carbon Glider can be advanced to a full operational level. Due to operational difficulties, pCO2 data from the glider missions were not calibrated with in situ measurements. Data are in CSV format. Lessons learned from this project can be used to finalize the development of the Carbon Glider and advance it to an operational level. Funding Agency: Coastal Marine Institute Funding Agency: US DOI; Bureau of Ocean Energy Management 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:0170784 Preview graphic PNG 0170784 NCEI ACCESSION NUMBER 2017-12-19 publication CHLOROPHYLL Chromophoric Dissolved Organic Matter (CDOM) CONDUCTIVITY DEPTH - BOTTOM OPTICAL BACKSCATTER partial pressure of carbon dioxide - water WATER TEMPERATURE theme NODC DATA TYPES THESAURUS CTD gas sensor instrument NODC INSTRUMENT TYPES THESAURUS biological chemical in situ optical physical theme NODC OBSERVATION TYPES THESAURUS International Arctic Research Center University of Alaska Fairbanks, Institute of Marine Science dataCentre NODC COLLECTING INSTITUTION NAMES THESAURUS University of Alaska Fairbanks dataCentre NODC SUBMITTING INSTITUTION NAMES THESAURUS Gulf of Alaska place NODC SEA AREA NAMES THESAURUS oceanography theme WMO_CategoryCode 2012-09-15 publication UAK-F/SFOS/IMS > Institute of Marine Science, School of Fisheries and Ocean Sciences, University of Alaska Fairbanks 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 EARTH SCIENCE > OCEANS > BATHYMETRY/SEAFLOOR TOPOGRAPHY > WATER DEPTH EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > CARBON DIOXIDE EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > CHLOROPHYLL EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > ORGANIC MATTER EARTH SCIENCE > OCEANS > OCEAN OPTICS EARTH SCIENCE > OCEANS > OCEAN TEMPERATURE > WATER TEMPERATURE EARTH SCIENCE > OCEANS > SALINITY/DENSITY > CONDUCTIVITY 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 CTD > Conductivity, Temperature, Depth GAS SENSORS > GAS 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 OCEAN > PACIFIC OCEAN > NORTH PACIFIC OCEAN > GULF OF ALASKA 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 YKANXG Send2NCEI Submission Package ID accessLevel: public otherRestrictions Cite as: Hauri, Claudine; Irving, Brita; McDonnell, Andrew; Winsor, Peter; Statscewich, Hank (2018). Water temperature, partial pressure of carbon dioxide, and other data from CTD, gas and optical sensors taken from the slocum glider in the Gulf of Alaska from 2016-05-19 to 2017-05-18 (NCEI Accession 0170784). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://www.ncei.noaa.gov/archive/accession/0170784. 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. eng; USA utf8 environment oceans -149.575 -149.412 59.696 59.982 2016-05-19 2017-05-18 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 66.128 https://www.ncei.noaa.gov/archive/accession/0170784 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/170784 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/170784 HTTPS Web browser HTTPS Navigate directly to the URL for data access and direct download. download ftp://ftp-oceans.ncei.noaa.gov/nodc/archive/arc0117/0170784/ 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 0170784 v1.1 was published. 2018-02-26T20:45:23Z NCEI Accession 0170784 v1.1 publication https://www.ncei.noaa.gov/archive/accession/0170784/1.1 HTTPS NCEI Accession 0170784 v1.1 published 2018-02-26T20:45:23Z download dataset Parameter or Variable: DEPTH - BOTTOM (calculated); Units: m; Observation Category: in situ; Sampling Instrument: CTD Parameter or Variable: TEMPERATURE [WATER TEMPERATURE] (measured); Units: C; Observation Category: in situ; Sampling Instrument: CTD Parameter or Variable: CONDUCTIVITY (measured); Units: S/m; Observation Category: in situ; Sampling Instrument: CTD Parameter or Variable: pCO2 -SEA [partial pressure of carbon dioxide - water] (measured); Units: ppmv; Observation Category: in situ; Sampling Instrument: gas sensors Parameter or Variable: CHLOROPHYLL (measured); Units: microgram/liter; Observation Category: in situ; Sampling Instrument: optical sensor Parameter or Variable: OPTICAL BACKSCATTER (measured); Units: nodim; Observation Category: in situ; Sampling Instrument: optical sensor Parameter or Variable: CDOM Fluorescence [Chromophoric Dissolved Organic Matter (CDOM)] (measured); Units: ppb; Observation Category: in situ; Sampling Instrument: optical sensor asNeeded Metadata are developed, maintained and distributed by NCEI. Updates are performed as needed to maintain currentness. NOAA National Centers for Environmental Information custodian CTD CTD Conductivity-Temperature-Depth probe gas sensor gas sensor A device that detects the presence of a gas at a given concentration.