gov.noaa.nodc:0287423 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 2026-07-28T13:40:11Z ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) Water temperature, salinity, and others taken by CTD, and other instruments from the training ship Oshoro Maru in the Bering Sea and Chukchi Sea from 2023-06-16 to 2023-07-23 (NCEI Accession 0287423) 2024-01-23 publication 2025-01-07 revision 2024-01-20 creation International DOI Foundation (IDF) 10.25921/8a0t-2412 NOAA National Centers for Environmental Information gov.noaa.nodc:0287423 NCEI Archive Management System 0287423 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 Hiromichi Ueno Hokkaido University, Faculty of Fisheries Sciences ueno@fish.hokudai.ac.jp https://www2.fish.hokudai.ac.jp/ HTTPS Hokkaido University, Faculty of Fisheries Sciences website Institution web page information resourceProvider Hokkaido University, Faculty of Fisheries Sciences https://www2.fish.hokudai.ac.jp/ HTTPS Hokkaido University, Faculty of Fisheries Sciences website Institution web page information resourceProvider Hiromichi Ueno Hokkaido University, Faculty of Fisheries Sciences https://www2.fish.hokudai.ac.jp/ HTTPS Hokkaido University, Faculty of Fisheries Sciences website Institution web page information principalInvestigator Ueno, Hiromichi Hokkaido University, Faculty of Fisheries Sciences https://www2.fish.hokudai.ac.jp/ HTTPS Hokkaido University, Faculty of Fisheries Sciences website Institution web page information author Imai, Keiri author Abe, Hiroto author Kasai, Akihide author Nomura, Daiki author Yamaguchi, Atsushi author Yamamura, Orio author Thiebot, Jean-Baptiste author Hokkaido University, Faculty of Fisheries Sciences https://www2.fish.hokudai.ac.jp/ HTTPS Hokkaido University, Faculty of Fisheries Sciences website Institution web page information contributor tableDigital This dataset contains water temperature, salinity, and others sea and atmospheric parameters taken by CTD and other instrumentation from the training ship Oshoro Maru in the Chukchi Sea, Bering Sea, and North Pacific Ocean. This cruise aims to understand hydrographic and ecosystem changes taking place in the northern Bering and Chukchi Seas. We conducted hydrographic, biogeochemical and ecosystem surveys, including plankton, microplastic, and fish samplings, from the northern Bering Sea to the Chukchi Sea. Data are in text, csv, png (picture) and mp4 (video). Data description is in PDF. This cruise is U.S. State Department MSR RATS U2022-051 as part of the World Data Service for Geophysics. The data was collected to clarify the changes in the physical and biogeochemical environment and their impacts on marine ecosystem in the northern Bering Sea and the Chukchi Sea. Funding Agency: Ministry of Education, Culture, Sports, Science and Technology of Japan Funding Agency: Hokkaido University, Faculty of Fisheries Sciences 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 0287423 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:0287423 Preview graphic PNG 0287423 NCEI ACCESSION NUMBER 2025-01-06 publication AIR TEMPERATURE BAROMETRIC PRESSURE BATHYMETRY BIRDS CHLOROPHYLL A Chromophoric Dissolved Organic Matter (CDOM) CONDUCTIVITY CURRENT SPEED Delta Oxygen-18 DISSOLVED INORGANIC CARBON (DIC) DISSOLVED OXYGEN DNA FLUORESCENCE HPLC PIGMENTS HYDROSTATIC PRESSURE NUTRIENTS OXYGEN POLYNUCLEAR AROMATIC HYDROCARBONS (PAH) Potential temperature (theta) RELATIVE HUMIDITY SALINITY SALINITY - SURFACE WATER SOUND VELOCITY total alkalinity Tritium (Hydrogen isotope) WATER DENSITY WATER TEMPERATURE WIND DIRECTION WIND SPEED theme NODC DATA TYPES THESAURUS ADCP binoculars coulometer for DIC measurement CTD echo sounder fluorometer mass spectrometer Neuston net XCTD instrument NODC INSTRUMENT TYPES THESAURUS chemical derived products geological in situ laboratory analyses meteorological physical profile survey - biological theme NODC OBSERVATION TYPES THESAURUS Oshoro Maru platform NODC PLATFORM NAMES THESAURUS Hokkaido University, Faculty of Fisheries Sciences dataCentre NODC COLLECTING INSTITUTION NAMES THESAURUS Hokkaido University, Faculty of Fisheries Sciences dataCentre NODC SUBMITTING INSTITUTION NAMES THESAURUS Bering Sea Chukchi Sea North Pacific Ocean place NODC SEA AREA NAMES THESAURUS oceanography theme WMO_CategoryCode 2012-09-15 publication Arctic Challenge for Sustainability II project Provider Project Names EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC PRESSURE EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC TEMPERATURE EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC WATER VAPOR > WATER VAPOR INDICATORS > HUMIDITY > RELATIVE HUMIDITY EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC WINDS > SURFACE WINDS > WIND DIRECTION EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC WINDS > SURFACE WINDS > WIND SPEED EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > ANIMALS/VERTEBRATES > BIRDS EARTH SCIENCE > BIOSPHERE > OMICS > BUILDING BLOCKS > DNA EARTH SCIENCE > CLIMATE INDICATORS > ATMOSPHERIC/OCEAN INDICATORS > SURFACE SALINITY EARTH SCIENCE > OCEANS > BATHYMETRY/SEAFLOOR TOPOGRAPHY > BATHYMETRY EARTH SCIENCE > OCEANS > OCEAN ACOUSTICS > ACOUSTIC VELOCITY EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > ALKALINITY EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > CHLOROPHYLL EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > INORGANIC CARBON EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > NUTRIENTS EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > ORGANIC MATTER EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > OXYGEN EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > PIGMENTS EARTH SCIENCE > OCEANS > OCEAN CIRCULATION > OCEAN CURRENTS EARTH SCIENCE > OCEANS > OCEAN OPTICS > FLUORESCENCE EARTH SCIENCE > OCEANS > OCEAN PRESSURE > WATER PRESSURE EARTH SCIENCE > OCEANS > OCEAN TEMPERATURE > POTENTIAL TEMPERATURE EARTH SCIENCE > OCEANS > OCEAN TEMPERATURE > WATER TEMPERATURE EARTH SCIENCE > OCEANS > SALINITY/DENSITY > CONDUCTIVITY EARTH SCIENCE > OCEANS > SALINITY/DENSITY > DENSITY 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 Captured image (png) Captured video (mp4) Number and weight of fishes Number of fish larvae Numbers of observed marine mammal groups and individuals Zooplankton wet weight environmental DNA fish DNA light photon neuston net sampling sea ice CDOM sea ice Chlorophyll a sea ice DIC sea ice Delta Oxygen-18 sea ice TA sea ice Turbidity sea ice nutrients sea ice salinity seabird species solar insolation theme Provider Keywords ADCP > Acoustic Doppler Current Profiler BINOCULAR > BINOCULAR COULOMETERS CTD > Conductivity, Temperature, Depth ECHO SOUNDERS > ECHO SOUNDERS FLUOROMETERS > FLUOROMETERS MASS SPECTROMETERS > MASS SPECTROMETERS NEUSTON NET 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 ACLW-CAD ACTW-CAD Auto-analyzer, Quatro-5ch BONGO net CHF-LP02-4-20mA-c CTD mounted Niskin bottles Chlrophyll Fluorometer Continuous Plankton Imaging and Classification System (CPICS) Dissolved oxygen sensor HMT333 LC net for bottom trawling LP‐PAR03BLAC Landing net N363D NORPAC net (335 µm) Niskin bottles and Water Sampling System Ordinary fishing rods, reels, lines and hooks using bait PE bottles PTB210 PVC bottles Pan-tilt-zoom camera (PTZ Camera) TA analyzer TS-301C high performance liquid chromatography kite trawl instrument Provider Instruments 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 Oshoro Maru (call sign: 7JRM, ICES code: 49OX, 2014-) platform ICES/SeaDataNet Ship Codes OCEAN > ARCTIC OCEAN > CHUKCHI SEA OCEAN > PACIFIC OCEAN > NORTH PACIFIC OCEAN OCEAN > PACIFIC OCEAN > NORTH PACIFIC OCEAN > BERING 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 0JTLFT Send2NCEI Submission Package ID accessLevel: public otherRestrictions Cite as: Ueno, Hiromichi; Imai, Keiri; Abe, Hiroto; Kasai, Akihide; Nomura, Daiki; Yamaguchi, Atsushi; Yamamura, Orio; Thiebot, Jean-Baptiste (2024). Water temperature, salinity, and others taken by CTD, and other instruments from the training ship Oshoro Maru in the Bering Sea and Chukchi Sea from 2023-06-16 to 2023-07-23 (NCEI Accession 0287423). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.25921/8a0t-2412. 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 geoscientificInformation climatologyMeteorologyAtmosphere biota 144 -160 40 70 2023-06-16 2023-07-23 This dataset has multiple versions. The highest version is the most complete 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 16397.856 https://doi.org/10.25921/8a0t-2412 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/287423 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/287423 HTTPS Web browser HTTPS Navigate directly to the URL for data access and direct download. download ftp://ftp-oceans.ncei.noaa.gov/nodc/archive/arc0222/0287423/ 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 0287423 v1.1 was published. 2024-01-23T23:09:34Z NCEI Accession 0287423 v1.1 publication https://www.ncei.noaa.gov/archive/accession/0287423/1.1 HTTPS NCEI Accession 0287423 v1.1 published 2024-01-23T23:09:34Z download NCEI Accession 0287423 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. 2024-08-30T00:28:20Z NCEI Accession 0287423 v2.2 publication https://www.ncei.noaa.gov/archive/accession/0287423/2.2 HTTPS NCEI Accession 0287423 v2.2 published 2024-08-30T00:28:20Z download NCEI Accession 0287423 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. 2025-01-07T17:31:08Z NCEI Accession 0287423 v3.3 publication https://www.ncei.noaa.gov/archive/accession/0287423/3.3 HTTPS NCEI Accession 0287423 v3.3 published 2025-01-07T17:31:08Z download dataset Parameter or Variable: WATER TEMPERATURE (measured); Units: degrees Celsius; Observation Category: in situ; Sampling Instrument: XCTD Parameter or Variable: SALINITY (measured); Units: psu; Observation Category: in situ; Sampling Instrument: XCTD Parameter or Variable: HYDROSTATIC PRESSURE (measured); Units: dbar; Observation Category: in situ; Sampling Instrument: CTD Parameter or Variable: WATER TEMPERATURE (measured); Units: degrees Celsius; 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: OXYGEN (measured); Units: ml/l; Observation Category: in situ; Sampling Instrument: CTD Parameter or Variable: FLUORESCENCE (measured); Units: mg m-3; Observation Category: in situ; Sampling Instrument: Chlrophyll Fluorometer Parameter or Variable: SALINITY (measured); Units: psu; Observation Category: in situ; Sampling Instrument: CTD Parameter or Variable: WATER DENSITY (measured); Units: kg m-3; Observation Category: in situ; Sampling Instrument: CTD Parameter or Variable: SOUND VELOCITY (measured); Units: m s-1; Observation Category: in situ; Sampling Instrument: CTD Parameter or Variable: Potential temperature (theta) (measured); Units: degrees Celsius; Observation Category: in situ; Sampling Instrument: CTD Parameter or Variable: WIND DIRECTION (measured); Units: degree; Observation Category: in situ; Sampling Instrument: N363D Parameter or Variable: WIND SPEED (measured); Units: m s-1; Observation Category: in situ; Sampling Instrument: N363D Parameter or Variable: BAROMETRIC PRESSURE (measured); Units: hPa; Observation Category: in situ; Sampling Instrument: PTB210 Parameter or Variable: AIR TEMPERATURE (measured); Units: attodegrees Celsius; Observation Category: in situ; Sampling Instrument: TS-301C Parameter or Variable: RELATIVE HUMIDITY (measured); Units: %; Observation Category: in situ; Sampling Instrument: HMT333 Parameter or Variable: solar insolation (measured); Units: W m-2; Observation Category: in situ; Sampling Instrument: CHF-LP02-4-20mA-c Parameter or Variable: light photon (measured); Units: umol m-2 s-1; Observation Category: in situ; Sampling Instrument: LP‐PAR03BLAC Parameter or Variable: WATER TEMPERATURE (measured); Units: degrees Celsius; Observation Category: in situ; Sampling Instrument: ACTW-CAD Parameter or Variable: CONDUCTIVITY (measured); Units: mS/cm; Observation Category: in situ; Sampling Instrument: ACTW-CAD Parameter or Variable: SALINITY - SURFACE WATER (measured); Units: psu; Observation Category: in situ; Sampling Instrument: ACTW-CAD Parameter or Variable: CHLOROPHYLL A (measured); Units: ppb; Observation Category: in situ; Sampling Instrument: ACLW-CAD Parameter or Variable: DISSOLVED OXYGEN (measured); Units: mg l-1; Observation Category: in situ; Sampling Instrument: Dissolved oxygen sensor Parameter or Variable: DISSOLVED INORGANIC CARBON (DIC) (measured); Units: μmol kg−1; Observation Category: in situ; Sampling Instrument: Coulometer for DIC measurement Parameter or Variable: total alkalinity (measured); Units: μmol kg−1; Observation Category: in situ; Sampling Instrument: TA analyzer Parameter or Variable: NUTRIENTS (measured); Units: μmol L−1; Observation Category: in situ; Sampling Instrument: Auto-analyzer, Quatro-5ch Parameter or Variable: Delta Oxygen-18 (measured); Units: per mille; Observation Category: in situ; Sampling Instrument: mass spectrometer Parameter or Variable: Chromophoric Dissolved Organic Matter (CDOM) (measured); Units: m-1; Observation Category: in situ; Sampling Instrument: fluorometer Parameter or Variable: HPLC PIGMENTS (measured); Units: μg L−1; Observation Category: in situ; Sampling Instrument: high performance liquid chromatography Parameter or Variable: POLYNUCLEAR AROMATIC HYDROCARBONS (PAH) (measured); Units: ng L–1; Observation Category: in situ; Sampling Instrument: PVC bottles Parameter or Variable: Tritium (Hydrogen isotope) (measured); Units: Bq L–1; Observation Category: laboratory analysis; Sampling Instrument: PE bottles; Sampling and Analyzing Method: Unanalyzed Parameter or Variable: sea ice salinity (measured); Units: psu; Observation Category: in situ; Sampling Instrument: Landing net Parameter or Variable: sea ice Delta Oxygen-18 (measured); Units: per mille; Observation Category: in situ; Sampling Instrument: landing net Parameter or Variable: sea ice DIC (measured); Units: μmol kg−1; Observation Category: in situ; Sampling Instrument: Landing net Parameter or Variable: sea ice TA (measured); Units: μmol kg−1; Observation Category: in situ; Sampling Instrument: Landing net Parameter or Variable: sea ice nutrients (measured); Units: μmol L−1; Observation Category: in situ; Sampling Instrument: Landing net Parameter or Variable: sea ice CDOM (measured); Units: m-1; Observation Category: in situ; Sampling Instrument: Landing net Parameter or Variable: sea ice Chlorophyll a (measured); Units: μg L−1; Observation Category: in situ; Sampling Instrument: Landing net Parameter or Variable: sea ice Turbidity (measured); Units: FTU; Observation Category: in situ; Sampling Instrument: Landing net Parameter or Variable: CURRENT SPEED (measured); Units: m s-1; Observation Category: in situ; Sampling Instrument: ADCP Parameter or Variable: neuston net sampling (measured); Units: N/A; Observation Category: in situ; Sampling Instrument: Neuston net; Sampling and Analyzing Method: Unanalyzed Parameter or Variable: environmental DNA (measured); Units: N/A; Observation Category: laboratory analysis; Sampling Instrument: Niskin bottles and Water Sampling System; Sampling and Analyzing Method: Unanalyzed Parameter or Variable: CHLOROPHYLL A (measured); Units: mg m-3; Observation Category: laboratory analysis; Sampling Instrument: CTD mounted Niskin bottles Parameter or Variable: Zooplankton wet weight (measured); Units: mg WW m-3; Observation Category: laboratory analysis; Sampling Instrument: NORPAC net (335 µm) Parameter or Variable: Captured image (png) (measured); Units: N/A; Observation Category: in situ; Sampling Instrument: Continuous Plankton Imaging and Classification System (CPICS) Parameter or Variable: Captured video (mp4) (measured); Units: N/A; Observation Category: in situ; Sampling Instrument: Pan-tilt-zoom camera (PTZ Camera) Parameter or Variable: Number of fish larvae (measured); Units: N/A; Observation Category: in situ; Sampling Instrument: BONGO net Parameter or Variable: Number and weight of fishes (measured); Units: Number and g; Observation Category: in situ; Sampling Instrument: LC net for bottom trawling Parameter or Variable: Number and weight of fishes (measured); Units: number and g; Observation Category: in situ; Sampling Instrument: Ordinary fishing rods, reels, lines and hooks using bait Parameter or Variable: fish DNA (measured); Units: N/A; Observation Category: laboratory analysis; Sampling Instrument: kite trawl; Sampling and Analyzing Method: Unanalyzed Parameter or Variable: Numbers of observed marine mammal groups and individuals (measured); Units: N/A; Observation Category: in situ; Sampling Instrument: binoculars Parameter or Variable: seabird species (measured); Units: N/A; Observation Category: in situ; Sampling Instrument: binoculars Parameter or Variable: BATHYMETRY (measured); Units: meter; Observation Category: in situ; Sampling Instrument: echo sounder asNeeded Metadata are developed, maintained and distributed by NCEI. Updates are performed as needed to maintain currentness. NOAA National Centers for Environmental Information custodian ADCP ADCP Acoustic Doppler Current Profiler The Acoustic Doppler Current Profiler (ADCP) measures currents beneath a ship while underway. Sound signals sent from the moving ship bounce back to receivers aboard the ship. This provides a profile of water movement relative to the ship-precise modern navigation, allowing the ship's motion to be subtracted from the data. These devices are also used on moorings and profilers and, along with acoustic backscattering, measure animal biomass. Particles in the path of the sound waves, mostly plankton, reflect a small part of the sound energy back toward receivers, allowing researchers to make remote estimates of the sizes and numbers of animals present in the water column. Before the 1970's, the most technologically advanced instrument used to measure water velocity was known as a Doppler speed log. This evolved into the first commercial ADCP, produced in the mid-1970's, which used averaging. Later in the 1970's, the first vessel-mounted ADCP was developed to measure water velocity more accurately and to allow measurement in range cells over a depth profile. As instruments evolved, so did new techniques in Doppler signal processing. Initially, Doppler speed logs used simple analog signal processing methods, which are still used in some commercial speed logs today. However, the first ADCPs incorporated analog-to-digital signal conversion over a narrow communication bandwidth. Around 1990, this technique was developed into broadband signal processing. Since then, broadband ADCPs have been able to generate very accurate, real-time velocity measurements. binoculars binoculars Binoculars, field glasses or binocular telescopes are a pair of identical or mirror-symmetrical telescopes mounted side-by-side and aligned to point accurately in the same direction, allowing the viewer to use both eyes (binocular vision) when viewing distant objects. coulometer for DIC measurement coulometer for DIC measurement measures dissolved inorganic carbon (DIC) A known amount of seawater is dispensed into a stripping chamber where it is acidified and purged with an inert gas. The amount of CO2 in the resulting gas stream is determined by absorbing the CO2 in an absorbent. The pH of the solution is monitored by measuring the transmittance . CTD CTD Conductivity-Temperature-Depth probe echo sounder echo sounder instrument used to determine water depth or bathymetry also known as an echosounder fluorometer fluorometer fluorometer mass spectrometer mass spectrometer Instrument that measure the massess and relative concentrations of atoms and molecules Neuston net Neuston net Neuston net is a net designed to sample plankton or microplastics located in the first few centimeters of the water column. cf. net - plankton net (insttypes_id 31) XCTD XCTD expendable conductivity, temperature, depth profiler Oshoro Maru ICES request for the vessel Oshoro Maru from JAPAN(JP). Name : Oshoro Maru Country(s) : JAPAN(JP) (ISO Country Code) Platform Class : 31 Research vessel Call Sign : 7JRM MMSI: 431001010 IMO : 9699983 Current Length : 78 Built : 2014-07-28 Notes : Training vessel Owner : Hokkaido University Information Sources: - http://www.marinetraffic.com/ais/details/ships/shipid:660927/mmsi:431001010/imo:9699983/vessel:OSHORO_MARU General Comments: Added to avoid confusion with OSHORO MARU code 49OS. Confirmed by NOAA on 2015-08-25.