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Dataset: 0
Catalog: /thredds/catalog/files/g/d745001/ccmp_6hourly/2016/catalog.html
dataFormatNetCDF
authorityedu.ucar.rda
featureTypeGRID
dataSize43447929
idfiles/g/d745001/ccmp_6hourly/2016/0
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DAP4 Data Access Access dataset using the DAP4 protocol.
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Documentation
Keywords
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Description:

  • summary: The CCMP data set combines cross-calibrated satellite microwave winds and instrument observations using a Variational Analysis Method (VAM) to produce high-resolution (0.25 degree) gridded analyses. Satellite wind retrievals derived by Remote Sensing Systems from a number of satellite-borne passive and active microwave instruments are used. RSS intercalibrates radiometers at the brightness temperature level to within 0.2 degree Celsius, applying a refined sea-surface emissivity model and radiative transfer function to derive surface winds. The resulting wind retrievals are highly consistent between microwave radiometer instrument platforms, including SSM/I, SSMIS, AMSR, TMI, WindSat, and GMI. RSS has also developed a geophysical model function for deriving wind speeds and directions from microwave scatterometers, including QuikSCAT and ASCAT. Both radiometer and scatterometer data are validated against ocean moored buoys, which confirm the measurements are in agreement (to within 0.8 m/s) despite the difference in wind measurement and retrieval methodologies. The VAM combines RSS instrument data with moored buoy measurements and a starting estimate (first-guess) of the wind field. The European Center for Medium-Range Weather Forecasts (ECMWF) ERA-Interim Reanalysis winds are used in the CCMP V2.0 processing as the first-guess wind field. This 0.25 degree model wind field is consistently processed, as opposed to that of the ECMWF operational model for which the model changes over time. All wind observations (satellite and buoy) and model analysis fields are referenced to a height of 10 meters.
  • NCAR RDA - Cross-Calibrated Multi-Platform Ocean Surface Wind Vector Analysis Product V2, 1987 - ongoing (d745001)
  • Version 2 CCMP Wind Product

Keywords:

  • : Remote Sensing
  • : Observation
  • : Wind

Dates:

  • modified : 2017-08-08T18:02:59Z

Creators:

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