Doppler Radar Wind Profiles at De Bilt
- Wind profiles (last 6 hours)
- Wind profiles (last day)
- Listing of archived images.
- Monitoring by CWINDE.
Wind Profiles (last 6 hours)
The Radar winds are given by the black barbs and the Hirlam winds by the blue barbs.
The radar wind profiles are obtained using the Gematronik implementation of the Velocity Volume Processing (VVP) algorithm. The VVP algorithm has been developed by Waldteufel and Corbin.
The Hirlam wind profiles are calculated from the three-hourly HIRLAM analyses. The grid point nearest to De Bilt is taken. The profile at a grid point is calculated by interpolation of the (wind) parameters at the model levels to the ones used in the volume processing of the Radar wind data.
The Radiosonde wind profiles are obtained from the 10-seconds data from the soundings at De Bilt. The data from the radiosonde have been binned to 200 meter thick height layers. When more datapoints are present per height layer, the (wind) parameters are averaged.
NOTE: On 28 April 2005 the number of vertical levels is
adjusted from 31 to 30.
NOTE: On 17 December 2003 the radar wind profile data are
taken from VCRIS.
NOTE: On 26 September 2003 an improved version of the
Gematronik VVP algorithm has been implemented.
NOTE: On 26 September 2001 the VVP product of Gematronik
has been upgraded.
NOTE: On 26 September 2001 the Doppler clutter filter has
been changed to number 3 and the SQI to 0.5.
NOTE: On 27 July 2001 the Doppler clutter filter has been
switched on (number 2, SQI:0.3).
Wind Profiles (last day)
The Radar winds are given by the black barbs and the Hirlam winds by the blue barbs.
Listing of archived images.
The radar wind profiles are obtained using the Gematronik implementation of the Velocity Volume Processing (VVP) algorithm. The VVP algorithm has been developed by Waldteufel and Corbin.
The Hirlam wind profiles are calculated from the three-hourly HIRLAM analyses. The grid point nearest to De Bilt is taken. The profile at a grid point is calculated by interpolation of the (wind) parameters at the model levels to the ones used in the volume processing of the Radar wind data.
The Radiosonde wind profiles are obtained from the 10-seconds data from the soundings at De Bilt. The data from the radiosonde have been binned to 200 meter thick height layers. When more datapoints are present per height layer, the (wind) parameters are averaged.
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