gov.noaa.nodc:0157485 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 2026-07-28T13:14:28Z ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) Dissolved inorganic carbon, pH, oxygen, and other variables collected from surface underway observations using flow-through pump from NOAA Ship Gordon Gunter off the U.S. East Coast during the East Coast Ocean Acidification (ECOA) Cruise from 2015-06-19 to 2015-07-24 (NCEI Accession 0157485) 2017-04-21 publication 2023-05-19 revision 2016-12-12 creation International DOI Foundation (IDF) 10.7289/v5r20zf1 NOAA National Centers for Environmental Information gov.noaa.nodc:0157485 NCEI Archive Management System 0157485 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 Shawn M. Shellito University of New Hampshire (UNH) shawn.shellito@unh.edu resourceProvider University of New Hampshire (UNH) resourceProvider Joseph Salisbury University of New Hampshire (UNH) Joe.Salisbury@unh.edu principalInvestigator Wei-Jun Cai University of Delaware wcai@udel.edu http://www.udel.edu/ HTTP University of Delaware 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 Bror Jonsson University of New Hampshire (UNH) bror.jonsson@unh.edu principalInvestigator Yuan-Yuan Xu University of Miami Rosenstiel School of Marine and Atmospheric Science (RSMAS) yuanyuan.xu@noaa.gov http://www.rsmas.miami.edu HTTP University of Miami Rosenstiel School of Marine and Atmospheric Science (RSMAS) website Institution web page information principalInvestigator Yonghui Gao University of Delaware ygao@udel.edu http://www.udel.edu/ HTTP University of Delaware website Institution web page information principalInvestigator Salisbury, Joseph E. University of New Hampshire author University of Delaware http://www.udel.edu/ HTTP University of Delaware website Institution web page information contributor University of New Hampshire (UNH) 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 tableDigital This dataset contains dissolved inorganic carbon, pH, oxygen, and other variables collected from surface underway observations during the East Coast Ocean Acidification (ECOA) Cruise. The East Coast Ocean Acidification (ECOA) Cruise on board NOAA Ship Gordon Gunter from Newport, took place in the Gulf of Maine and then along the East US coast to Miami. The effort was in support of the coastal monitoring and research objectives of the NOAA Ocean Acidification Program (OAP). The cruise was designed to obtain a snapshot of key carbon, physical, and biogeochemical parameters as they relate to ocean acidification (OA) in the coastal realm. The cruise included a series of 11 transects approximately orthogonal to the Gulf of Maine and Atlantic coasts and a comprehensive set of underway measurements along the entire transect. To measure key carbon, physical and biogeochemical parameters in coastal waters of the Gulf of Maine and eastern coast of the US in relation to Ocean Acidification. Funding Information: NOAA Ocean Acidification Program (AOML FY2015-FY2017 East and Gulf Coast Ocean Acidification Observing Support: Eastcoast Ocean Acidification Cruise FY15 [ECOA] (Salisbury, NERACOOS), OAPFY15.AOML.ECOA) Funding Information: NOAA Ocean Acidification Program (AOML FY2015-FY2017 East and Gulf Coast Ocean Acidification Observing Support: Eastcoast Ocean Acidification Cruise FY15 [ECOA] (Wanninkhof), OAP1527-1114) Funding Information: NOAA's Ocean Acidification Program (ECOA Cruise, NA11NOS0120034) 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 0157485 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:0157485 Preview graphic PNG 0157485 NCEI ACCESSION NUMBER 2017-04-05 publication DISSOLVED INORGANIC CARBON (DIC) OXYGEN - PERCENT SATURATION pH SALINITY SEA SURFACE TEMPERATURE theme NODC DATA TYPES THESAURUS bottle Flow-through pump instrument NODC INSTRUMENT TYPES THESAURUS surface measurements surface underway theme NODC OBSERVATION TYPES THESAURUS NOAA Ship Gordon Gunter platform NODC PLATFORM NAMES THESAURUS NOAA Atlantic Oceanographic and Meteorological Laboratory University of Delaware University of New Hampshire dataCentre NODC COLLECTING INSTITUTION NAMES THESAURUS University of New Hampshire dataCentre NODC SUBMITTING INSTITUTION NAMES THESAURUS NODC Ocean Acidification Scientific Data Stewardship (OADS) US DOC; NOAA; Office of Oceanic and Atmospheric Research; Ocean Acidification Program (OAP) project NODC PROJECT NAMES THESAURUS East Coast - US/Canada 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 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 GU-15-04 ECOA1 project Cruise ID 33GG20150619 project EXPOCODE Ocean Acidification Program (OAP) Ocean Carbon and Acidification Data System (OCADS) Project project Ocean Acidification Search Keywords East Coast Ocean Acidification (ECOA) Project project Research Projects EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > INORGANIC CARBON EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > OXYGEN EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > PH EARTH SCIENCE > OCEANS > OCEAN TEMPERATURE > SEA SURFACE 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 O2/Ar superaturation Optode dissolved oxygen sensor, Aanderaa 4135 dual isotope dilution and cavity ring-down spectroscopy (DID-CRDS) dynamic luminescence quenching techonique ratio of oxygen and argon theme Provider Keywords Cor_Optode DIC DO MEASUREMENT_Temp O2_solubility Optode_DO Optode_Temp PH_RAW, PH_TOT SSS SST delta_O2Ar theme Provider Variable Abbreviations 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 GORDON GUNTER (call sign: WTEO, ICES code: 33GG, 1998-) platform ICES/SeaDataNet Ship Codes OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN 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 East Coast of the U.S. place Provider Geographic Names accessLevel: public otherRestrictions Cite as: Salisbury, Joseph E. (2017). Dissolved inorganic carbon, pH, oxygen, and other variables collected from surface underway observations using flow-through pump from NOAA Ship Gordon Gunter off the U.S. East Coast during the East Coast Ocean Acidification (ECOA) Cruise from 2015-06-19 to 2015-07-24 (NCEI Accession 0157485). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.7289/v5r20zf1. 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. Salisbury, Joseph; Reimer, Janet (2016). East Coast Ocean Acidification Cruise (ECOA-1) Cruise Report. NOAA Atlantic Oceanographic and Meteorological Laboratory. https://www.aoml.noaa.gov/ocd/gcc/ECOA/ 2016 publication https://www.aoml.noaa.gov/ocd/gcc/ECOA/ HTTPS https://www.aoml.noaa.gov/ocd/gcc/ECOA/ Related resource information 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 -80.9739 -61.7186 25.8346 44.9448 2015-06-19 2015-07-24 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 4.364 https://www.ncei.noaa.gov/data/oceans/ncei/ocads/metadata/0157485.html HTTPS Web browser Project Metadata Navigate directly to the URL for a descriptive web page with download links. information https://doi.org/10.7289/v5r20zf1 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/157485 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/157485 HTTPS Web browser HTTPS Navigate directly to the URL for data access and direct download. download ftp://ftp-oceans.ncei.noaa.gov/nodc/archive/arc0106/0157485/ 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 0157485 v1.1 was published. 2017-04-21T11:30:22Z NCEI Accession 0157485 v1.1 publication https://www.ncei.noaa.gov/archive/accession/0157485/1.1 HTTPS NCEI Accession 0157485 v1.1 published 2017-04-21T11:30:22Z download NCEI Accession 0157485 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. 2023-05-19T20:09:30Z NCEI Accession 0157485 v2.2 publication https://www.ncei.noaa.gov/archive/accession/0157485/2.2 HTTPS NCEI Accession 0157485 v2.2 published 2023-05-19T20:09:30Z download dataset Parameter or Variable: Dissolved Inorganic Carbon; Abbreviation: DIC; Unit: umol kg-1; Observation type: Surface underway measurement; In-situ / Manipulation / Response variable: in-situ observation; Measured or calculated: Measured; Sampling instrument: Pump seawater from underway system; Analyzing instrument: Two Picarro Cavity Ring-Down Spectroscopy instruments; Detailed sampling and analyzing information: The method is based on dual isotope dilution and cavity ring-down spectroscopy (DID-CRDS). In this method, seawater is continuously sampled and mixed with a flow of NaH13CO3 solution that is also enriched in deuterated water (the spike). The isotopic composition of CO2 (delta 13C spiked_sample) derived from the DIC in the mixture, and the D/H ratio of the mixed water (delta D spiked_sample), are measured by CRDS analyzers. The D/H of the water in the mixture allows accurate estimates of the mixing ratio of the sample and the spike. [DIC] of the sample is then calculated from the mixing ratio, [DI13C] of the spike, and delta 13C spiked_sample.; Uncertainty: less than 0.03%; Quality flag convention: 2: good data 3.Questionable data; Method reference: An Ultrahigh Precision, High-Frequency Dissolved Inorganic Carbon Analyzer Based on Dual Isotope Dilution and Cavity Ring-Down Spectroscopy. Kuan Huang, Nicolas Cassar, Bror Jonsson, Wei-jun Cai, and Michael L. Bender. Environmental Science and Technology 2015 49 (14), 8602-8610. https://doi.org/10.1021/acs.est.5b01036; Researcher name: Bror Jonsson; Researcher institution: University of New Hampshire Parameter or Variable: pH; Abbreviation: PH_RAW, PH_TOT; pH scale: NBS, Total; Observation type: Surface underway; In-situ / Manipulation / Response variable: in-situ observation; Measured or calculated: measured; Analyzing instrument: Honeywell Durafet III Non-Glass pH electrode with Vario Pin Connector; Temperature of pH measurement: In engine room, ~2 m after the seachest, before the seawater pumps, SBE-38; Detailed sampling and analyzing information: Raw output of pH (in NBS scale) was presented without a calibration. Spectrophotometric pH analyses on discrete samples were used for the calibration of raw data. Corrected pH = Measured pH + delta pH, where delta pH = Spec pH (total, at Durafet temperature) - Durafet pH (NBS scale, at water temperature in the flow through cell) = -0.005268 X Temperature + 0.01551. Slope and intercept came from the linear regression of delta pH and the water temperature in the flow through cell. Then the pH at sea surface temperature condition was calculated via CO2SYS using SST and SSS from SBE 38 and SBE 45 and the total alkalinity estimated from the linear relationship with SSS (TA_EST = 49.027 X SSS + 598.73, R2 = 0.98, this relationship was developed from the discrete surface bottle samples collected from the ECOA cruise).; Researcher name: Yuan-Yuan Xu; Researcher institution: University of Delaware Parameter or Variable: sea surface salinity; Abbreviation: SSS; Observation type: Surface underway; In-situ / Manipulation / Response variable: in-situ observation; Measured or calculated: measured; Sampling instrument: SBE-45 Parameter or Variable: sea surface temperature; Abbreviation: SST; Unit: degree c; Observation type: Surface underway; In-situ / Manipulation / Response variable: in-situ observation; Measured or calculated: measured; Sampling instrument: SBE-45 Parameter or Variable: pH measurement temperature; Abbreviation: MEASUREMENT_Temp; Unit: degree c; Observation type: Surface underway; In-situ / Manipulation / Response variable: in-situ observation; Measured or calculated: measured; Sampling instrument: Honeywell Durafet III Non-Glass pH electrode with Vario Pin Connector Parameter or Variable: O2/Ar superaturation; Abbreviation: delta_O2Ar; Unit: no; Observation type: Surface underway; In-situ / Manipulation / Response variable: in-situ observation; Measured or calculated: Measured; Sampling instrument: pump seawater from underway system; Analyzing instrument: Equilibrium inlet mass spectrometer (EIMS); Detailed sampling and analyzing information: water flowed constantly at 100 ml/min through a gas-permeable membrane contraction cartridge (MicroModuel, Liqui-Cel Membrane). Equilibrated gasses diffused into a fused-silica capillary (2 m in length and 0.05 mm in diameter) that connects to a quadruple mass spectrometer (Pfeiffer vacuum) for ion current intensity and ratio measurements. Calibration was conducted automatically every 3 hours for 20-min using ambient air, which has a stable O2/Ar. The analysis procedure for O2Ar: 1. Remove abnormal data due to instrument stop, unacceptable pressure, and unstable flow rate; 2. Remove 8-min data (e-folding time) after switching between air and water inlets; 3. In every 2-min, O2 Ar ratio were measured about 120 times. Only data within 95% confidence interval were averaged; 4. delta_O2Ar = [(O2/Ar)warter - (O2/Ar)air]/(O2/Ar)air; Uncertainty: precision of EIMS: plus/minus 0.2%; Quality flag convention: 2: good data 3.Questionable data; Method reference: Cassar, N., B. A. Barnett, M. L. Bender, J. Kaiser, R. C. Hamme, and B. Tilbrook. 2009. Continuous high-frequency dissolved O2/Ar measurements by equilibrator inlet mass spectrometry. Anal. Chem. 81: 1855-1864.; Researcher name: Yonghui Gao; Researcher institution: University of Delaware Parameter or Variable: oxygen saturation (%) of underway seawater; Abbreviation: Optode_DO; Unit: %; Observation type: Surface underway; In-situ / Manipulation / Response variable: in-situ observation; Measured or calculated: measured; Sampling instrument: pump seawater from underway system; Analyzing instrument: an optode dissolved oxygen sensor (Aanderaa 4135); Detailed sampling and analyzing information: The oxygen optode is based on the dynamic luminescence quenching technique, and can measure DO% and temperature at frequency of 30second.Underway water flowed constantly as that for O2/Ar ratio measurement; The DO% were calibrated with oxygen water samples, which were taken from underway water and measured with winkler titration method.; Uncertainty: absolute accuracy is better than plus/minus 1.5%; Quality flag convention: 1. unmeasurement 2. good 3. questionable data; Method reference: TD 269 operating mannual: oxygen optode 4430, 4831, 4835. Feb 2014, AADI: 2-84; Researcher name: Yonghui Gao; Researcher institution: University of Delaware Parameter or Variable: Water temperature of underway samples (C); Abbreviation: Optode_Temp; Unit: degree c; In-situ / Manipulation / Response variable: in-situ observation; Measured or calculated: measured; Sampling instrument: pump seawater from underway system; Analyzing instrument: an optode dissolved oxygen sensor (Aanderaa 4135); Detailed sampling and analyzing information: The oxygen optode is based on the dynamic luminescence quenching technique, and can measure DO% and temperature at frequency of 30second. Underway water flowed constantly as that for O2/Ar ratio measurement; The DO% were calibrated with oxygen water samples, which were taken from underway water and measured with winkler titration method.; Uncertainty: absolute accuracy is better than plus/minus 1.5%; Quality flag convention: 1. unmeasurement 2. good 3. questionable data; Method reference: TD 269 operating mannual: oxygen optode 4430, 4831, 4835. Feb 2014, AADI: 2-84; Researcher name: Yonghui Gao; Researcher institution: University of Delaware Parameter or Variable: Correction of DO% of underway seawater; Abbreviation: Cor_Optode; Unit: %; In-situ / Manipulation / Response variable: in-situ observation; Measured or calculated: measured; Sampling instrument: pump seawater from underway system; Analyzing instrument: an optode dissolved oxygen sensor (Aanderaa 4135); Detailed sampling and analyzing information: The oxygen optode is based on the dynamic luminescence quenching techonique, and can measure DO% and temperature at frequency of 30second. Underway water flowed constantly as that for O2/Ar ratio measurement; The DO% were calibrated with oxygen water samples, which were taken from underway water and measured with winkler titration method; Uncertainty: absolute accuracy is better than plus/minus 1.5%; Quality flag convention: 1. unmeasurement 2. good 3. questionable data; Method reference: TD 269 operating mannual: oxygen optode 4430, 4831, 4835. Feb 2014, AADI: 2-84; Researcher name: Yonghui Gao; Researcher institution: University of Delaware Parameter or Variable: Oxygen solubility of underway water; Abbreviation: O2_solubility; Unit: %; Observation type: Surface underway; In-situ / Manipulation / Response variable: in-situ observation; Measured or calculated: measured; Sampling instrument: pump seawater from underway system; Analyzing instrument: an optode dissolved oxygen sensor (Aanderaa 4135); Detailed sampling and analyzing information: The oxygen optode is based on the dynamic luminescence quenching techonique, and can measure DO% and temperature at frequency of 30second. Solubility were calculated based on salinity and temperature; Uncertainty: absolute accuracy is better than plus/minus 1.5%; Quality flag convention: 1. unmeasurement 2. good 3. questionable data; Method reference: TD 269 operating mannual: oxygen optode 4430, 4831, 4835. Feb 2014, AADI: 2-84; Researcher name: Yonghui Gao; Researcher institution: University of Delaware Parameter or Variable: correction of DO% of underway seawater; Abbreviation: DO; Unit: %; In-situ / Manipulation / Response variable: in-situ observation; Measured or calculated: measured; Sampling instrument: pump seawater from underway system; Analyzing instrument: an optode dissolved oxygen sensor (Aanderaa 4135); Detailed sampling and analyzing information: Sample correction with bottle samples: The team member of Chris Longdon took oxygen underway samples and measured with winkler titration for DO concentration; we use underway oxygen solubility and [DO] to calculate DO% and correct the drift in oxygen sensor; Uncertainty: absolute accuracy is better than plus/minus 1.5%; Quality flag convention: 1. unmeasurement 2. good 3. questionable data; Method reference: TD 269 operating mannual: oxygen optode 4430, 4831, 4835. Feb 2014, AADI: 2-84; Researcher name: Yonghui Gao; Researcher institution: University of Delaware asNeeded Metadata are developed, maintained and distributed by NCEI. Updates are performed as needed to maintain currentness. NOAA National Centers for Environmental Information custodian bottle bottle any type of water bottle sampling device Generic name for water collection device; usually used to determine temperature, salinity and provide water aliquots for measurement of a wide range of parameters; often referred to by a specific type of water sampling bottle, such as a Nansen or Niskin bottle. Flow-through pump Flow-through pump Flow-through pump refers to a pump system, often found onboard a research vessel. Such pump can feed seawater continuously into instrument that record certain properties of the seawater continuously. 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.