gov.noaa.nodc:0311482 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 2026-06-02T13:22:39Z ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) Results of Oceanographic Observations taken by CTD in North Pacific Areas under National Jurisdiction of the United States of America from the R/V Keifu Maru, Cruise No. KS25-01, from 2025-01-25 to 2025-01-26 (NCEI Accession 0311482) 2026-01-20 publication 2026-01-12 creation International DOI Foundation (IDF) 10.25921/mhqx-bh05 NOAA National Centers for Environmental Information gov.noaa.nodc:0311482 NCEI Archive Management System 0311482 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 Shohei Hashimoto Japan Meteorological Agency (JMA) hashimoto-shohei@met.kishou.go.jp resourceProvider Japan Meteorological Agency (JMA) resourceProvider Yoshikazu Higashi Japan Meteorological Agency (JMA) seadata@met.kishou.go.jp principalInvestigator Higashi, Yoshikazu Japan Meteorological Agency (JMA) author Japan Meteorological Agency (JMA) contributor tableDigital KS25-01 cruise was conducted by the Japan Meteorological Agency's research vessel "Keifu Maru" from January to February, 2025. This dataset reports the results of marine observations conducted within the exclusive economic zone (EEZ) of the United States (Wake Atoll National Wildlife Refuge) during this voyage. The major objectives of the cruise are to monitor ocean conditions in the western North Pacific on a seasonal basis. During the cruise, vertical profiles of seawater temperature, salinity, dissolved oxygen, nutrients were observed. As a method of Hydrographic observation, vertical distributions of seawater temperature and salinity were measured using a CTD (Conductivity-Temperature-Depth profiler), and chemical analysis was performed on seawater samples collected by the CTD's multi-bottle sampler. This dataset is the U.S. State Department MSR RATS U2024-016. Data are in TXT and CSV formats. In recent years, the global environmental issues such as global warming and climate change have become one of the major socio-economic concerns, and it has become apparent that the ocean plays a key role in the climate system. For the better understanding and assessment of global environmental conditions, continuous monitoring of climate variables. To meet those requirements, JMA has been conducting operational oceanographic observations by research vessels in the western North Pacific on a seasonal basis.The present cruise is one of these activities. Major objectives of the cruise are monitor vertical profiles of seawater temperature, salinity, dissolved oxygen and nutrients. Funding Agency: Japan Meteorological Agency 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:0311482 Preview graphic PNG 0311482 NCEI ACCESSION NUMBER 2025-12-31 publication DISSOLVED OXYGEN nitrate + nitrite content (concentration) NITROGEN SALINITY silicate WATER TEMPERATURE theme NODC DATA TYPES THESAURUS CTD laboratory analysis Niskin bottle instrument NODC INSTRUMENT TYPES THESAURUS chemical in situ physical profile theme NODC OBSERVATION TYPES THESAURUS KEIFU MARU platform NODC PLATFORM NAMES THESAURUS Japan Meteorological Agency dataCentre NODC COLLECTING INSTITUTION NAMES THESAURUS Japan Meteorological Agency dataCentre NODC SUBMITTING INSTITUTION NAMES THESAURUS U. S. Department of State Marine Scientific Research (MSR) project NODC PROJECT NAMES THESAURUS North Pacific Ocean Pacific Remote Islands Marine National Monument place NODC SEA AREA NAMES THESAURUS oceanography theme WMO_CategoryCode 2012-09-15 publication JP/JMA > Japan Meteorological Agency, Japan 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 MSR > U.S. Department of State Marine Scientific Research project Global Change Master Directory (GCMD) Project 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 KS25-01 Cruise project Provider Project Names EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > NITRATE EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > NITRITE EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > NITROGEN EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > OXYGEN EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > SILICATE 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 (Nitrate+nitrite)-nitrogen CTD depth of STD. in meters CTD depth of sampling in meters CTD salinity STD. in PSS-78 CTD salinity in PSS-78 CTD temperature STD. in ITS-90 CTD temperature in ITS-90 Dissolved oxygen STD. Geopotential anomaly Hydrogen-ion Inorganic phosphate-phosphorus Nitrite-nitrogen Thermosteric anomaly theme Provider Keywords CTD > Conductivity, Temperature, Depth NISKIN BOTTLES 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 CTD,Multi-Niskin bottle sampler 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 KEIFU MARU (call sign: JPBN, ICES code: 49UF, 2000-) platform ICES/SeaDataNet Ship Codes R/V Keifu Maru platform Provider Platform Names OCEAN > PACIFIC OCEAN > NORTH PACIFIC 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 Northwest Pacific Ocean,Wake Atoll N.W.R place Provider Place Names MFML3U Send2NCEI Submission Package ID accessLevel: public otherRestrictions Cite as: Higashi, Yoshikazu (2026). Results of Oceanographic Observations taken by CTD in North Pacific Areas under National Jurisdiction of the United States of America from the R/V Keifu Maru, Cruise No. KS25-01, from 2025-01-25 to 2025-01-26 (NCEI Accession 0311482). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.25921/mhqx-bh05. 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. license This dataset is licensed under the Creative Commons Attribution 4.0 International (CC BY 4.0) License. SPDX License: Creative Commons Attribution 4.0 International (CC-BY-4.0) Products from JMA R/Vs: (Climate and Global Environmental Issues > Oceanographic Observation and Information > Observation Using Vessels) 2026 publication https://www.jma.go.jp/jma/en/Activities/cc.html HTTPS https://www.jma.go.jp/jma/en/Activities/cc.html User guide information crossReference userGuide eng; USA utf8 environment oceans 164.98333 165 16.98333 22 2025-01-25 2025-01-26 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 0.704 https://doi.org/10.25921/mhqx-bh05 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/311482 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/311482 HTTPS Web browser HTTPS Navigate directly to the URL for data access and direct download. download ftp://ftp-oceans.ncei.noaa.gov/nodc/archive/arc0241/0311482/ 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 0311482 v1.1 was published. 2026-01-20T16:02:29Z NCEI Accession 0311482 v1.1 publication https://www.ncei.noaa.gov/archive/accession/0311482/1.1 HTTPS NCEI Accession 0311482 v1.1 published 2026-01-20T16:02:29Z download dataset Parameter or Variable: CTD depth of sampling in meters (measured); Units: m; Observation Category: in situ; Sampling Instrument: CTD,Multi-Niskin bottle sampler Parameter or Variable: CTD temperature in ITS-90 (measured); Units: deg.C; Observation Category: in situ; Sampling Instrument: CTD,Multi-Niskin bottle sampler Parameter or Variable: CTD salinity in PSS-78 (measured); Units: psu; Observation Category: in situ; Sampling Instrument: CTD,Multi-Niskin bottle sampler Parameter or Variable: Dissolved oxygen (measured); Units: µmol/kg; Observation Category: in situ; Sampling Instrument: CTD,Multi-Niskin bottle sampler Parameter or Variable: Inorganic phosphate-phosphorus (measured); Units: µmol/kg; Observation Category: in situ; Sampling Instrument: CTD,Multi-Niskin bottle sampler Parameter or Variable: (Nitrate+nitrite)-nitrogen (measured); Units: µmol/kg; Observation Category: in situ; Sampling Instrument: CTD,Multi-Niskin bottle sampler Parameter or Variable: Nitrite-nitrogen (measured); Units: µmol/kg; Observation Category: in situ; Sampling Instrument: CTD,Multi-Niskin bottle sampler Parameter or Variable: Silicate (measured); Units: µmol/kg; Observation Category: in situ; Sampling Instrument: CTD,Multi-Niskin bottle sampler Parameter or Variable: Hydrogen-ion (measured); Units: total scale; Observation Category: in situ; Sampling Instrument: CTD,Multi-Niskin bottle sampler Parameter or Variable: CTD depth of STD. in meters (measured); Units: m; Observation Category: in situ; Sampling Instrument: CTD,Multi-Niskin bottle sampler Parameter or Variable: CTD temperature STD. in ITS-90 (measured); Units: deg.C; Observation Category: in situ; Sampling Instrument: CTD,Multi-Niskin bottle sampler Parameter or Variable: CTD salinity STD. in PSS-78 (measured); Units: psu; Observation Category: in situ; Sampling Instrument: CTD,Multi-Niskin bottle sampler Parameter or Variable: Dissolved oxygen STD. (measured); Units: µmol/kg; Observation Category: in situ; Sampling Instrument: CTD,Multi-Niskin bottle sampler Parameter or Variable: Thermosteric anomaly (measured); Units: 10-8m3/kg; Observation Category: in situ; Sampling Instrument: CTD,Multi-Niskin bottle sampler Parameter or Variable: Geopotential anomaly (measured); Units: 10m2 /sec2; Observation Category: in situ; Sampling Instrument: CTD,Multi-Niskin bottle sampler 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 laboratory analysis laboratory analysis use as an observation type Niskin bottle Niskin bottle Device for obtaining samples of seawater at a specific depth Why special entry for Niskin bottle but no entry for Nansen bottle? KEIFU MARU Updated information from ICES for the vessel KEIFU MARU from JAPAN has been added. Code : 49UF Name : KEIFU MARU Flag : JAPAN - JP (ISO Country Code) Call Sign : JPBN Platform Class : 31 Research vessel IMO : 9237838 Commissioned Date : 2000 Current Length : 81 Built : 2000 Notes : WOD code 8887. MMSI 431560000 Additional Information Sources: - http://www.marinetraffic.com/ais/ru/shipdetails.aspx?mmsi=431560000 General Comments: Confirmed in Miramar Ship Index