Wave and Anemometer-based Sea Surface Wind (WASWind)

Ship-based measurements of sea surface wind speed displays a spurious upward trend due to increases in anemometer height. To correct this bias, we construct a new sea surface wind dataset from ship observations of wind speed and wind wave height archived in the International Comprehensive Ocean-Atmosphere Data Set (ICOADS). The Wave and Anemometer-based Sea-surface Wind (WASWind) dataset is available at monthly resolution on a 4 degrees by 4 degrees. longitude-latitude grid from 1950 to 2011. It substantially reduces the upward trend in wind speed through height-correction for anemometer-measured winds, rejection of spurious Beaufort winds, and use of estimated winds from wind wave height. The reduced upward trend is smallest among the existing global datasets of in situ observations and comparable with those of reanalysis products. Despite the significant reduction of globally-averaged wind speed trend, WASWind features rich spatial structures in trend pattern, making it a valuable dataset for studies of climate changes on regional scales. Not only does the combination of ship winds and wind wave height successfully reproduce major modes of seasonal-to-decadal variability, but its trend patterns are also physically consistent with sea level pressure (SLP) measurements. WASWind is in close agreement with wind changes in satellite measurements by the Special Sensor Microwave Imager (SSM/I) for the recent two decades. The agreement in trend pattern with such independent observations illustrates the utility of WASWind for climate trend analysis.

To Access Resource:

Questions? Email Resource Support Contact:

  • Zaihua Ji
    UCAR/NCAR - Research Data Archive

Temporal Range

  • Begin:  1950-01-16T00:00:00Z
    End:  2011-12-16T00:00:00Z


Resource Type dataset
Temporal Range Begin 1950-01-16T00:00:00Z
Temporal Range End 2011-12-16T00:00:00Z
Temporal Resolution N/A
Bounding Box North Lat 90
Bounding Box South Lat -90
Bounding Box West Long -180
Bounding Box East Long 180
Spatial Representation grid
Spatial Resolution 4 degree
Related Links

Related Resource #1 : WASWind

Additional Information N/A
Resource Format NetCDF
Standardized Resource Format NetCDF
Asset Size 60.27 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 Tokinaga, Hiroki
Publisher Research Data Archive at the National Center for Atmospheric Research, Computational and Information Systems Laboratory
Publication Date 2012-12-10
Digital Object Identifier (DOI) https://doi.org/10.5065/BRX8-V029
Alternate Identifier ds232.3
Resource Version N/A
Topic Category oceans
Progress onGoing
Metadata Date 2022-03-02T19:05:05-07:00
Metadata Record Identifier edu.ucar.rda::ds232.3
Metadata Language eng; USA
Suggested Citation Tokinaga, Hiroki. (2012). Wave and Anemometer-based Sea Surface Wind (WASWind). Research Data Archive at the National Center for Atmospheric Research, Computational and Information Systems Laboratory. https://doi.org/10.5065/BRX8-V029. Accessed 21 September 2023.

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