gov.noaa.nodc:0190272 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 2026-04-17T21:08:31Z ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) Sargassum density and coverage using Moderate Resolution Imaging Spectroradiometer (MODIS) satellite data from 2001-01-01 to 2018-12-31 (NCEI Accession 0190272) 2019-06-26 publication 2019-10-05 revision 2019-06-14 creation NOAA National Centers for Environmental Information gov.noaa.nodc:0190272 NCEI Archive Management System 0190272 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 Mengqiu Wang University of South Florida (USF) https://www.usf.edu/ HTTPS University of South Florida (USF) website Institution web page information resourceProvider University of South Florida (USF) https://www.usf.edu/ HTTPS University of South Florida (USF) website Institution web page information resourceProvider Chuanmin Hu University of South Florida (USF) https://www.usf.edu/ HTTPS University of South Florida (USF) website Institution web page information principalInvestigator Mengqiu Wang University of South Florida (USF) mengqiu@mail.usf.edu https://www.usf.edu/ HTTPS University of South Florida (USF) website Institution web page information pointOfContact Wang, Mengqiu University of South Florida (USF) https://www.usf.edu/ HTTPS University of South Florida (USF) website Institution web page information author Hu, Chuanmin University of South Florida (USF) https://www.usf.edu/ HTTPS University of South Florida (USF) website Institution web page information author Barnes, Brian B. University of South Florida (USF) https://www.usf.edu/ HTTPS University of South Florida (USF) website Institution web page information author University of South Florida (USF) https://www.usf.edu/ HTTPS University of South Florida (USF) website Institution web page information contributor tableDigital This dataset includes the monthly mean Sargassum density/coverage derived from MODIS measurements. The data are stored in netcdf, GeoTIFF, or ascii format. The coverage data range from 2001 to 2018 and the density data range from 2001 to 2010. The location covers from 20°S to 50°N and 98°W to 15°E. The data resolution is 0.5° by 0.5°. This dataset is available to the public for a wide variety of uses including scientific research and analysis. Funding Agency: National Oceanic and Atmospheric Administration Funding Agency: US National Aeronautic and Space Administration Funding Agency: NOAA RESTORE Science Program 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 0190272 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:0190272 Preview graphic PNG 0190272 NCEI ACCESSION NUMBER 2019-09-05 publication biological data MACROALGAE theme NODC DATA TYPES THESAURUS MODIS instrument NODC INSTRUMENT TYPES THESAURUS satellite data theme NODC OBSERVATION TYPES THESAURUS University of South Florida dataCentre NODC COLLECTING INSTITUTION NAMES THESAURUS University of South Florida dataCentre NODC SUBMITTING INSTITUTION NAMES THESAURUS Gulf of Mexico Mediterranean Sea North Atlantic Ocean Sargasso Sea South Atlantic Ocean South Pacific Ocean place NODC SEA AREA NAMES THESAURUS oceanography theme WMO_CategoryCode 2012-09-15 publication NASA Ecological Forecast Program (NNX17AE57G) NASA Ocean Biology and Biogeochemistry Program (NNX14AL98G, NNX16AR74G) NOAA RESTORE Science Program (NA17NOS4510099) project Provider Project Names EARTH SCIENCE > BIOLOGICAL CLASSIFICATION EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > PLANTS > MACROALGAE (SEAWEEDS) 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 Sargassum coverage Sargassum density Sargassum mean biomass Sargassum mean coverage theme Provider Keywords MODIS > Moderate-Resolution Imaging Spectroradiometer 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 OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN > GULF OF AMERICA OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN > GULF OF MEXICO OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN > MEDITERRANEAN SEA OCEAN > ATLANTIC OCEAN > SOUTH ATLANTIC OCEAN OCEAN > PACIFIC OCEAN > SOUTH 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 GB74EX Send2NCEI Submission Package ID accessLevel: Public otherRestrictions Cite as: Wang, Mengqiu; Hu, Chuanmin; Barnes, Brian B. (2019). Sargassum density and coverage using Moderate Resolution Imaging Spectroradiometer (MODIS) satellite data from 2001-01-01 to 2018-12-31 (NCEI Accession 0190272). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://www.ncei.noaa.gov/archive/accession/0190272. 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. Mapping and quantifying Sargassum distribution and coverage in the Central West Atlantic using MODIS observations. Remote sensing of environment 2016 publication https://optics.marine.usf.edu/projects/SaWS.html HTTPS https://optics.marine.usf.edu/projects/SaWS.html project website information Wang, M author Hu, C. author University of South Florida, College of Marine Science, Optical Oceanography Laboratory publisher documentDigital 183 pgs. 350-367 crossReference project eng; USA utf8 environment oceans biota -98 15 -20 50 2001-01-01 2018-12-31 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 91.004 https://www.ncei.noaa.gov/archive/accession/0190272 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/190272 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/190272 HTTPS Web browser HTTPS Navigate directly to the URL for data access and direct download. download ftp://ftp-oceans.ncei.noaa.gov/nodc/archive/arc0139/0190272/ 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 0190272 v1.1 was published. Access to this revision of this accession has been limited, and full and open access is not available at this time. As acknowledged in NOAA Administrative Order 212-15, some data archived at NCEI may have specific access constraints that are mutually agreed upon and documented by the Data Producer / Data Provider and NCEI. 2019-06-26T03:30:04Z NCEI Accession 0190272 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. 2019-10-05T07:49:48Z NCEI Accession 0190272 v2.2 publication https://www.ncei.noaa.gov/archive/accession/0190272/2.2 HTTPS NCEI Accession 0190272 v2.2 published 2019-10-05T07:49:48Z download dataset Parameter or Variable: Sargassum density (calculated); Units: kg/m^2; Observation Category: satellite; Sampling Instrument: MODIS Parameter or Variable: Sargassum coverage (calculated); Units: % coverage; Observation Category: satellite; Sampling Instrument: MODIS Parameter or Variable: Sargassum mean biomass (calculated); Units: million tons; Observation Category: satellite; Sampling Instrument: MODIS; Sampling and Analyzing Method: Total Sargassum biomass in the Caribbean Sea and Central Atlantic Ocean from 2011 to 2018 Parameter or Variable: Sargassum mean coverage (calculated); Units: km^2; Observation Category: satellite; Sampling Instrument: MODIS; Sampling and Analyzing Method: Total Sargassum coverage in the Caribbean Sea and Central Atlantic Ocean from 2000 to 2018 asNeeded Metadata are developed, maintained and distributed by NCEI. Updates are performed as needed to maintain currentness. NOAA National Centers for Environmental Information custodian MODIS MODIS Moderate Resolution Imaging Spectroradiometer MODIS (or Moderate Resolution Imaging Spectroradiometer) is a key instrument aboard the Terra (EOS AM) and Aqua (EOS PM) satellites. Terra's orbit around the Earth is timed so that it passes from north to south across the equator in the morning, while Aqua passes south to north over the equator in the afternoon. Terra MODIS and Aqua MODIS are viewing the entire Earth's surface every 1 to 2 days, acquiring data in 36 spectral bands, or groups of wavelengths (see MODIS Technical Specifications). MODIS Technical Specifications Orbit: 705 km, 10:30 a.m. descending node (Terra) or 1:30 p.m. ascending node (Aqua), sun-synchronous, near-polar, circular Scan Rate: 20.3 rpm, cross track Swath Dimensions: 2330 km (cross track) by 10 km (along track at nadir) Telescope: 17.78 cm diam. off-axis, afocal (collimated), with intermediate field stop Size: 1.0 x 1.6 x 1.0 m Weight: 228.7 kg Power: 162.5 W (single orbit average) Data Rate: 10.6 Mbps (peak daytime); 6.1 Mbps (orbital average) Quantization: 12 bits Spatial Resolution: 250 m (bands 1-2); 500 m (bands 3-7); 1000 m (bands 8-36) Design Life: 6 years (From: http://modis.gsfc.nasa.gov/about/index.html)