MetOp-A ASCAT Level 2 12.5-km Ocean Surface Wind Vector Climate Data Record Optimized for Coastal Ocean

Description

This dataset represents the first historically reprocessed Level 2 coastal ocean surface wind vector climate data record from the Advanced Scatterometer (ASCAT) on MetOp-A sampled on a 12.5 km grid. This coastal dataset utilizes a spatial box filter to generate a spatial average of the Sigma-0 retrievals from the Level 1B dataset and obtains additional winds near the coast. Since the full resolution L1B Sigma-0 retrievals are used, all non-sea retrievals are discarded prior to the Sigma-0 averaging. Each box average Sigma-0 is then used to compute the vector cell wind using the same CMOD7 geophysical model function as in the operational OSI SAF ASCAT wind vector datasets. With this enhanced coastal retrieval, winds are computed as close to ~15 km from the coast. 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 12.5km data, please visit: https://podaac.jpl.nasa.gov/dataset/ASCATA-L2-Coastal. 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 Browse granule search results in Earthdata Search https://search.earthdata.nasa.gov/search/granules?p=C2036877686-POCLOUD
21 Reports and Publications https://scatterometer.knmi.nl/publications/
21 Search results for publications that cite this dataset by its DOI. https://scholar.google.com/scholar?q=10.15770%2FEUM_SAF_OSI_0007
21 Generic Data Readers https://github.com/podaac/data-readers
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
22 Thumbnail https://podaac.jpl.nasa.gov/Podaac/thumbnails/ASCATA_L2_COASTAL_CDR.jpg
21 Data Use and Citation Policy https://podaac.jpl.nasa.gov/CitingPODAAC
21 HTTPS endpoint for data browse and download https://cmr.earthdata.nasa.gov/virtual-directory/collections/C2036877686-POCLOUD
21 OPeNDAP Access for Data in the Cloud https://podaac.jpl.nasa.gov/OPeNDAP-in-the-Cloud
21 SOTO (State Of The Ocean) Visualization (wind speed, night) https://podaac-tools.jpl.nasa.gov/soto/#b=BlueMarble_ShadedRelief_Bathymetry&l=ascata_l2_coastal___wind_speed___2880_x_1440___night(la=true)
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 Mission and Instrument Overview https://www.eumetsat.int/our-satellites/metop-series
21 Training resources for scatterometry data provided by KNMI https://scatterometer.knmi.nl/training_material/

Tags

  • oceans
  • ocean-winds
  • earth-science

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