gov.noaa.nodc:0286197 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 2026-02-02T20:40:08Z ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) Water temperature, salinity, turbulent kinetic energy (TKE) dissipation rate, thermal dissipation rate, and other variables collected from the research vessel Thomas G. Thompson in the Equatorial Pacific Ocean at 140 deg W from 1984-11-16 to 1984-12-03 as part of the TROPIC HEAT Experiment (NCEI Accession 0286197) 2023-12-18 publication 2023-12-15 creation NOAA National Centers for Environmental Information gov.noaa.nodc:0286197 NCEI Archive Management System 0286197 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 Hartmut Peters Earth and Space Research (ESR) tuoichen@gmail.com https://www.esr.org/ HTTPS Earth and Space Research (ESR) website Institution web page information resourceProvider Earth and Space Research (ESR) https://www.esr.org/ HTTPS Earth and Space Research (ESR) website Institution web page information resourceProvider Hartmut Peters Earth and Space Research (ESR) tuoichen@gmail.com https://www.esr.org/ HTTPS Earth and Space Research (ESR) website Institution web page information pointOfContact Michael C. Gregg University of Washington, Applied Physics Laboratory (APL) mgregg@uw.edu http://www.apl.washington.edu/ HTTP University of Washington, Applied Physics Laboratory (APL) website Institution web page information principalInvestigator John Toole Woods Hole Oceanographic Institution (WHOI) http://www.whoi.edu HTTP Woods Hole Oceanographic Institution (WHOI) website Institution web page information principalInvestigator Peters, Hartmut Earth and Space Research tuoichen@gmail.com https://www.esr.org/ HTTPS Earth and Space Research (ESR) website Institution web page information author Gregg, Michael C. University of Washington; Applied Physics Laboratory http://www.apl.washington.edu/ HTTP University of Washington, Applied Physics Laboratory (APL) website Institution web page information author Toole, John M. Woods Hole Oceanographic Institution http://www.whoi.edu HTTP Woods Hole Oceanographic Institution (WHOI) website Institution web page information author University of Washington, Applied Physics Laboratory (APL) http://www.apl.washington.edu/ HTTP University of Washington, Applied Physics Laboratory (APL) website Institution web page information contributor Earth and Space Research (ESR) https://www.esr.org/ HTTPS Earth and Space Research (ESR) website Institution web page information contributor Woods Hole Oceanographic Institution (WHOI) http://www.whoi.edu HTTP Woods Hole Oceanographic Institution (WHOI) website Institution web page information contributor tableDigital Velocity and temperature microstructure, shear and stratification were observed at 35 stations between 3 degrees North and 2.5 degrees South at 140 degrees West from November 16 to December 3, 1984. The stations include a 4.5-day time series on the equator. The observations span the meridional extent of the Equatorial Undercurrent. The time series resolves a diurnal cycle in and below the varying surface mixed layer. After these many years, only station averages and hourly averages from the equatorial time series survive. Ancillary data, including surface forcing, and documentation are included in the data compilation. Data are in ASCII format. These observations were designed to analyze the role of diapycnal mixing in the dynamics of the highly sheared and mostly stratified waters above the core of the Equatorial Undercurrent. By extension, the data relate to the dynamics of the ocean-atmosphere in the Tropical Pacific. The TROPIC HEAT I (There was a TROPIC HEAT II.) observations for the first time resolved the large, rapid variability of diapycnal mixing. The findings proved to be incompatible with popular parameterizations of mixing prevalent at the time. Funding Agency: National Science Foundation; Directorate for Geosciences (GEO) 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:0286197 Preview graphic PNG 0286197 NCEI ACCESSION NUMBER 2023-12-15 publication CURRENT METER - EAST-WEST COMPONENT (U) CURRENT METER - NORTH-SOUTH COMPONENT (V) SALINITY turbulent kinetic energy (TKE) dissipation rate WATER TEMPERATURE theme NODC DATA TYPES THESAURUS ADCP CTD turbulence profiler instrument NODC INSTRUMENT TYPES THESAURUS in situ physical profile theme NODC OBSERVATION TYPES THESAURUS moorings R/V THOMAS G. THOMPSON platform NODC PLATFORM NAMES THESAURUS Earth and Space Research University of Washington, Applied Physics Laboratory Woods Hole Oceanographic Institution dataCentre NODC COLLECTING INSTITUTION NAMES THESAURUS Earth and Space Research dataCentre NODC SUBMITTING INSTITUTION NAMES THESAURUS TROPIC HEAT project NODC PROJECT NAMES THESAURUS Equatorial Pacific Ocean place NODC SEA AREA NAMES THESAURUS oceanography theme WMO_CategoryCode 2012-09-15 publication ESR > Earth and Space Research UWA/APL > Applied Physics Laboratory, University of Washington WHOI > WOODS HOLE OCEANOGRAPHIC INSTITUTION dataCentre Global Change Master Directory (GCMD) Data Center Keywords 2026 revision 23 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 > OCEAN CIRCULATION > OCEAN CURRENTS EARTH SCIENCE > OCEANS > OCEAN TEMPERATURE > WATER TEMPERATURE EARTH SCIENCE > OCEANS > SALINITY/DENSITY > SALINITY theme Global Change Master Directory (GCMD) Science Keywords 2026 revision 23 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 shear thermal dissipation rate theme Provider Keywords ADCP > Acoustic Doppler Current Profiler CTD > Conductivity, Temperature, Depth instrument Global Change Master Directory (GCMD) Instrument Keywords 2026 revision 23 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 Advanced Microstructure Profiler Ametek Straza ADCP moored current meter instrument Provider Instruments MOORINGS platform Global Change Master Directory (GCMD) Platform Keywords 2026 revision 23 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 THOMAS G. THOMPSON (call sign: KGWT, ICES code: 31TT) platform ICES/SeaDataNet Ship Codes Thomas G. Thompson platform Provider Platform Names OCEAN > PACIFIC OCEAN place Global Change Master Directory (GCMD) Location Keywords 2026 revision 23 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 K0NHTB Send2NCEI Submission Package ID accessLevel: public otherRestrictions Cite as: Peters, Hartmut; Gregg, Michael C.; Toole, John M. (2023). Water temperature, salinity, turbulent kinetic energy (TKE) dissipation rate, thermal dissipation rate, and other variables collected from the research vessel Thomas G. Thompson in the Equatorial Pacific Ocean at 140 deg W from 1984-11-16 to 1984-12-03 as part of the TROPIC HEAT Experiment (NCEI Accession 0286197). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://www.ncei.noaa.gov/archive/accession/0286197. 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. Gregg, M. C., Peters, H., Wesson, J. C., Oakey, N. S., & Shay, T. J. (1985). Intensive measurements of turbulence and shear in the equatorial undercurrent. Nature, 318(6042), 140–144. https://doi.org/10.1038/318140a0 1985-11 publication International DOI Foundation (IDF) https://doi.org/10.1038/318140a0 https://doi.org/10.1038/318140a0 HTTPS https://doi.org/10.1038/318140a0 Related journal article information Gregg, M. C. author Peters, H. author Wesson, J. C. author Oakey, N. S. author Shay, T. J. author Springer Science and Business Media LLC publisher documentDigital Nature 318(6042) ISSN 0028-0836, ISSN 1476-4687, pp. 140-144 crossReference sciencePaper Toole, J. M., Peters, H., & Gregg, M. C. (1987). Upper Ocean Shear and Density Variability at the Equator during TROPIC HEAT. Journal of Physical Oceanography, 17(9), 1397–1406. https://doi.org/10.1175/1520-0485(1987)017%3C1397:uosadv%3E2.0.co;2 1987-09 publication International DOI Foundation (IDF) https://doi.org/10.1175/1520-0485(1987)017%3C1397:uosadv%3E2.0.co;2 https://doi.org/10.1175/1520-0485(1987)017%3C1397:uosadv%3E2.0.co;2 HTTPS https://doi.org/10.1175/1520-0485(1987)017%3C1397:uosadv%3E2.0.co;2 Related journal article information Toole, John M. author Peters, Hartmut author Gregg, Michael C. author American Meteorological Society publisher documentDigital J. Phys. Oceanogr. 17(9) ISSN 0022-3670, ISSN 1520-0485, pp. 1397-1406 crossReference sciencePaper Peters, H., Gregg, M. C., & Toole, J. M. (1988). On the parameterization of equatorial turbulence. Journal of Geophysical Research: Oceans, 93(C2), 1199–1218. https://doi.org/10.1029/jc093ic02p01199 1988-02-15 publication International DOI Foundation (IDF) https://doi.org/10.1029/jc093ic02p01199 https://doi.org/10.1029/jc093ic02p01199 HTTPS https://doi.org/10.1029/jc093ic02p01199 Related journal article information Peters, H. author Gregg, M. C. author Toole, J. M. author American Geophysical Union (AGU) publisher documentDigital J. Geophys. Res. 93(C2) ISSN 0148-0227, pp. 1199-1218 crossReference sciencePaper Peters, H., Gregg, M. C., & Toole, J. M. (1989). Meridional variability of turbulence through the equatorial undercurrent. Journal of Geophysical Research: Oceans, 94(C12), 18003–18009. https://doi.org/10.1029/jc094ic12p18003 1989-12-15 publication International DOI Foundation (IDF) https://doi.org/10.1029/jc094ic12p18003 https://doi.org/10.1029/jc094ic12p18003 HTTPS https://doi.org/10.1029/jc094ic12p18003 Related journal article information Peters, H. author Gregg, M. C. author Toole, J. M. author American Geophysical Union (AGU) publisher documentDigital J. Geophys. Res. 94(C12) ISSN 0148-0227, pp. 18003-18009 crossReference sciencePaper eng; USA utf8 environment oceans -140.2 -139.8 -2.6 3.1 1984-11-16 1984-12-03 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 24.728 https://www.ncei.noaa.gov/archive/accession/0286197 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/286197 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/286197 HTTPS Web browser HTTPS Navigate directly to the URL for data access and direct download. download ftp://ftp-oceans.ncei.noaa.gov/nodc/archive/arc0221/0286197/ 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 0286197 v1.1 was published. 2023-12-18T20:49:10Z NCEI Accession 0286197 v1.1 publication https://www.ncei.noaa.gov/archive/accession/0286197/1.1 HTTPS NCEI Accession 0286197 v1.1 published 2023-12-18T20:49:10Z download dataset Parameter or Variable: turbulent kinetic energy (TKE) dissipation rate (measured); Units: W/kg; Observation Category: in situ; Sampling Instrument: Advanced Microstructure Profiler; Sampling and Analyzing Method: rapid sampling of output of airfoil sensors; Data Quality Method: Sensors were calibrated in laboratory. Output was scrutinized mainly in the frequency / wavenumber domain. Parameter or Variable: thermal dissipation rate (measured); Units: degrees kelvin ^2 / sec; Observation Category: in situ; Sampling Instrument: Advanced Microstructure Profiler; Sampling and Analyzing Method: Output of cold film sensor sampled rapidly; Data Quality Method: Scrutiny of spectra Parameter or Variable: WATER TEMPERATURE (measured); Units: degrees Celsius; Observation Category: in situ; Sampling Instrument: Advanced Microstructure Profiler; Sampling and Analyzing Method: Rapidly sampled, calibrated thermistor Parameter or Variable: SALINITY (measured); Units: psu; Observation Category: in situ; Sampling Instrument: Advanced Microstructure Profiler; Sampling and Analyzing Method: Calculated from thermistor temperature and Neil Brown Conductivity Parameter or Variable: shear (measured); Units: seconds ^ -1; Observation Category: in situ; Sampling Instrument: Ametek Straza ADCP; Sampling and Analyzing Method: vertically differenced relative velocity data, east and north components Parameter or Variable: CURRENT METER - EAST-WEST COMPONENT (U) (measured); Units: m/s; Observation Category: in situ; Sampling Instrument: moored current meter Parameter or Variable: CURRENT METER - NORTH-SOUTH COMPONENT (V) (measured); Units: m/s; Observation Category: in situ; Sampling Instrument: moored current meters 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. CTD CTD Conductivity-Temperature-Depth probe turbulence profiler turbulence profiler Instrument that measure ocean turbulence. moorings entry created as MOORINGS OF UNITED STATES, but has been used as a generic MOORINGS entry. R/V THOMAS G. THOMPSON Use this platform for data attributed to R/V Thomas G. Thompson that were collected between August 1965 and December 1989. R/V Thomas G. Thompson (AGOR-9) Owned by US Navy, leased to University of Washington. Active dates: 1 August 1965 - December 1989 Renamed R/V Pacific Escort II (IX-517), Dec 1989 - May 1997 Renamed R/V Gosport (IX-517), May 1997 - Feb 2004 Sunk 14 Nov 2004 as part of NATO exercise (Source: http://www.navsource.org/archives/09/57/5709.htm, last accessed on 20 Dec 2011)