MetOp-A ASCAT Level 2 25-km Ocean Surface Wind Vector Climate Data Record

Description

This dataset represents the first historically reprocessed Level 2 ocean surface wind vector climate data record from the Advanced Scatterometer (ASCAT) on MetOp-A sampled on a 25 km grid. Products at 25-km sampling are less noisy than 12.5-km products, but also contain less geophysical information on small scales and near the coasts. The wind vector retrievals are currently processed using the CMOD7 geophysical model function using a Hamming filter to spatially average the Level 1 Sigma-0 data over 25 km swath grid cells. Each file corresponds to one complete orbit and is provided in netCDF version 3 format. The beginning of the orbit files is defined near the South Pole. ASCAT is a C-band fan beam radar scatterometer, providing two independent swaths of backscatter retrievals, aboard the MetOp-A platform in sun-synchronous polar orbit. It is a product of the European Organization for the Exploitation of Meteorological Satellites (EUMETSAT) Ocean and Sea Ice Satellite Application Facility (OSI SAF) provided through the Royal Netherlands Meteorological Institute (KNMI). For more information on the MetOp mission, please visit: https://www.eumetsat.int/our-satellites/metop-series . For access to more contemporaneous and near-real-time MetOp-A ASCAT 25-km data, please visit: https://podaac.jpl.nasa.gov/dataset/ASCATA-L2-25km. For more timely announcements, users are encouraged to register with the KNMI scatterometer email list: scat@knmi.nl. All intellectual property rights of the OSI SAF products belong to EUMETSAT. The use of these products is granted to every interested user, free of charge. If you wish to use these products, EUMETSAT's copyright credit must be shown by displaying the words "copyright (year) EUMETSAT" on each of the products used. Use cases and feedback on the products will be much appreciated and in fact helps to sustain the reprocessing capability.

Resources

Name Format Description Link
21 Data Use and Citation Policy https://podaac.jpl.nasa.gov/CitingPODAAC
21 Search results for publications that cite this dataset by its DOI. https://scholar.google.com/scholar?q=10.15770%2FEUM_SAF_OSI_0006
33 ASCAT Level 2 CDR User Guide https://knmi-scatterometer-website-prd.s3-eu-west-1.amazonaws.com/publications/osisaf_cdop2_ss3_pum_ascat_repr_v1p2.pdf
21 Training resources for scatterometry data provided by KNMI https://scatterometer.knmi.nl/training_material/
21 Browse granule search results in Earthdata Search https://search.earthdata.nasa.gov/search/granules?p=C2491772100-POCLOUD
21 Reports and Publications https://scatterometer.knmi.nl/publications/
21 Mission and Instrument Overview https://www.eumetsat.int/our-satellites/metop-series
22 Thumbnail https://podaac.jpl.nasa.gov/Podaac/thumbnails/ASCATA_L2_25KM_CDR.jpg
21 HTTPS endpoint for data browse and download https://cmr.earthdata.nasa.gov/virtual-directory/collections/C2491772100-POCLOUD
21 Generic data readers https://github.com/podaac/data-readers
33 Verhoef, A., J. Vogelzang and A. Stoffelen, 2016: ASCAT L2 Winds Data Record Validation Report Version 1.2. Technical Note, SAF/OSI/CDOP2/KNMI/TEC/RP/239, EUMETSAT. https://knmi-scatterometer-website-prd.s3-eu-west-1.amazonaws.com/publications/ascat_repr_validation_1.2.pdf
21 README file https://archive.podaac.earthdata.nasa.gov/podaac-ops-cumulus-docs/ascat/open/L2/metop_a/cdr/25km/README.txt

Tags

  • oceans
  • ocean-winds
  • earth-science

Topics

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