GHRSST NOAA/STAR Metop-A AVHRR FRAC ACSPO v2.80 1km L2P Dataset (GDS version 2)

Description

The MetOp First Generation (FG) is a European multi-satellite program jointly established by ESA and EUMETSAT, comprising three satellites, MetOp-A, -B and -C. The primary sensor onboard MetOp-FG, the Advanced Very High Resolution Radiometer/3 (AVHRR/3) contributed by NOAA, measures Earth emissions and reflectances in 5 out of 6 available bands (centered at 0.63, 0.83, 1.61, 3.7, 11 and 12 microns), in a swath of 2,600km from an 817km altitude. These data are collected in a Full Resolution Area Coverage (FRAC) mode, with pixel size of 1.1km at nadir. MetOp-A launched on 19 October 2006 is the first in the MetOp-FG series. The NOAA Advanced Clear-Sky Processor for Ocean (ACSPO) Level 2 Preprocessed (L2P) SST product is derived at the full AVHRR FRAC resolution and reported in 10 minute granules in NetCDF4 format, compliant with the GHRSST Data Specification version 2 (GDS2). Subskin SSTs are derived using the regression Nonlinear SST (NLSST) algorithm, which employs three bands (3.7, 11 and 12 microns) at night and two bands (11 and 12 microns) during the day. The ACSPO AVHRR FRAC L2P product is monitored and validated against quality controlled in situ data, provided by the NOAA in situ SST Quality Monitor system (iQuam; Xu and Ignatov, 2014, https://doi.org/10.1175/JTECH-D-13-00121.1), in another NOAA system, SST Quality Monitor (SQUAM; Dash et al, 2010, https://doi.org/10.1175/2010JTECHO756.1). SST imagery and clear-sky masking are continuously evaluated, and checked for consistency with other sensors and platforms, in the ACSPO Regional Monitor for SST (ARMS) system. MetOp-A orbital characteristics and AVHRR/3 sensor performance are tracked in the NOAA 3S system (He et al., 2016, https://doi.org/10.3390/rs8040346). The L2P Near Real Time (NRT) SST files are archived at PO.DAAC with 3-6 hours latency, and then replaced by the Re-ANalysis (RAN) SST after about 2 months later with identical file names. Two features can be used to identify them: different file name time stamps and netCDF global attribute metadata source=NOAA-NCEP-GFS for NRT and source=MERRA-2 for RAN. A reduced size (0.45GB/day), equal-angle gridded (0.02-deg resolution) ACSPO L3U product is also available.

Resources

Name Format Description Link
0 Navigate directly to the URL for a descriptive web page with download links. https://doi.org/10.25921/am4h-a956
0 Navigate directly to the URL for data access and direct download. https://www.ncei.noaa.gov/data/oceans/ghrsst/L2P/AVHRRMTA/STAR/
0 Information for contacts at NCEI. https://www.ncei.noaa.gov/contact
0 User documentation https://doi.org/10.5281/zenodo.7589540
0 Global Change Master Directory (GCMD). 2023. GCMD Keywords, Version 17. 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 https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords
0 Program documentation https://doi.org/10.5281/zenodo.6984989
0 related journal article https://doi.org/10.1117/1.jrs.11.032405
0 Institution web page https://www.star.nesdis.noaa.gov/
0 Institution web page https://www.star.nesdis.noaa.gov/
0 Information for contacts at NCEI. https://www.ncei.noaa.gov/contact
0 Global Change Master Directory (GCMD). 2023. GCMD Keywords, Version 17. 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 https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords
0 related journal article https://doi.org/10.3390/rs13204046
0 Global Change Master Directory (GCMD). 2023. GCMD Keywords, Version 17. 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 https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords
0 Institution web page https://www.star.nesdis.noaa.gov/
0 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). ftp://ftp-oceans.ncei.noaa.gov/pub/data.nodc/ghrsst/L2P/AVHRRMTA/STAR/
0 Institution web page https://podaac.jpl.nasa.gov/
0 Global Change Master Directory (GCMD). 2023. GCMD Keywords, Version 17. 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 https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords
0 related journal article https://doi.org/10.1002/2013jd020637
0 related journal article https://doi.org/10.1175/jtech-d-15-0166.1
0 related journal article https://doi.org/10.1175/jtech-d-13-00121.1
0 related journal article https://doi.org/10.1175/2010jtecha1413.1
0 related journal article https://doi.org/10.1175/2010jtecho756.1
0 related journal article https://doi.org/10.3390/rs8040346
0 Institution web page https://www.umd.edu/
0 related journal article https://doi.org/10.1175/jtech-d-10-05023.1
0 SST products monitored in ARMS R2 https://www.star.nesdis.noaa.gov/socd/sst/arms/
0 Institution web page https://www.star.nesdis.noaa.gov/
0 SST products monitored in iQUAM R2 https://www.star.nesdis.noaa.gov/socd/sst/iquam/
0 Institution web page https://www.star.nesdis.noaa.gov/
0 SST products monitored in SQUAM R2 https://www.star.nesdis.noaa.gov/socd/sst/squam/
0 Institution web page https://www.star.nesdis.noaa.gov/
21 AVHRRF_MA-STAR-L2P-v2.80 https://cmr.earthdata.nasa.gov/search/concepts/C2205121384-POCLOUD.html
0 Global Change Master Directory (GCMD). 2023. GCMD Keywords, Version 17. 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 https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords
0 Global Change Master Directory (GCMD). 2023. GCMD Keywords, Version 17. 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 https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords
21 These data are available through a variety of services via a THREDDS (Thematic Real-time Environmental Distributed Data Services) Data Server (TDS). Depending on the dataset, the TDS can provide WMS, WCS, DAP, HTTP, and other data access and metadata services as well. For more information on the TDS, see http://www.unidata.ucar.edu/software/thredds/current/tds/. https://www.ncei.noaa.gov/thredds-ocean/catalog/ghrsst/L2P/AVHRRMTA/STAR/catalog.html

Tags

  • oceanography

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