Cross-Calibrated Multi-Platform Ocean Surface Wind Vector Analysis Product V2, 1987 - ongoing

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.

To Access Resource:

Questions? Email Resource Support Contact:

  • Zaihua Ji
    zji@ucar.edu
    UCAR/NCAR - Research Data Archive

Temporal Range

  • Begin:  1987-07-10T00:00:00Z
    End:  2019-04-29T18:00:00Z

Keywords

Resource Type dataset
Temporal Range Begin 1987-07-10T00:00:00Z
Temporal Range End 2019-04-29T18:00:00Z
Temporal Resolution N/A
Bounding Box North Lat 78.375
Bounding Box South Lat -78.375
Bounding Box West Long -180
Bounding Box East Long 180
Spatial Representation grid
Spatial Resolution 0.25 degree
Related Links

Related Resource #1 : Version 2 CCMP Wind Product

Additional Information N/A
Asset Size 332047 MB
Legal Constraints

Use of this dataset is subject to UCAR's Terms of Use, except that commercial use is generally not prohibited.


Access Constraints Registration on the RDA web site is a requirement for access to the data.
Software Implementation Language N/A
Resource Support Name Zaihua Ji
Resource Support Email zji@ucar.edu
Resource Support Organization UCAR/NCAR - Research Data Archive
Distributor NCAR Research Data Archive
Metadata Contact Name N/A
Metadata Contact Email rdahelp@ucar.edu
Metadata Contact Organization NCAR Research Data Archive
Author Wentz, F. J.
Scott, J.
Hoffman, R.
Leidner, M.
Atlas, R.
Ardizzone, J.
Publisher Research Data Archive at the National Center for Atmospheric Research, Computational and Information Systems Laboratory
Publication Date 2016-08-05
Digital Object Identifier (DOI) https://doi.org/10.5065/4TSY-K140
Alternate Identifier ds745.1
Resource Version N/A
Topic Category oceans
Progress onGoing
Metadata Date 2019-08-16T09:05:01-07:00
Metadata Record Identifier edu.ucar.rda::ds745.1
Metadata Language eng; USA
Suggested Citation Wentz, F. J., Scott, J., Hoffman, R., Leidner, M., Atlas, R., Ardizzone, J.. (2016). Cross-Calibrated Multi-Platform Ocean Surface Wind Vector Analysis Product V2, 1987 - ongoing. Research Data Archive at the National Center for Atmospheric Research, Computational and Information Systems Laboratory. https://doi.org/10.5065/4TSY-K140. Accessed 10 December 2019.

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