3. Define the WIND display options.
Subtract Mean Wind
Select Yes for IRIS to subtract the mean wind vector from all wind vectors and
display the perturbation wind vectors.
Select No to display the full wind vector.
Wind Display Style
Display the WIND product vectors as wind barbs or wind strings.
The WIND vectors are estimates of horizontal winds using a uniform wind
algorithm in sectors around the radar.
Wind barbs point toward the wind direction, with hatch marks denoting the wind
speed following the standard meteorological convention of 1/2 barb for 5 knots,
full barb for 10 knots, and triangles for 50 knots.
Wind strings point away from the wind direction, with the length of the string
indicating the relative wind speed (the longer the string, the higher the speed).
String Max Length
If you choose Strings as the wind display style, enter the maximum string length
in meters/second.
Any data point that exceeds this length is displayed at the maximum length.
Area Coverage Threshold %
Add threshold points for which the aerial coverage of radial velocity data is less
than the selected value. A value of 50 % is typical.
More information
‣
NDOP Output Options (page 249)
‣
VVP Output Options: Time-Height (page 251)
‣
FCAST: Forecast (page 37)
‣
WIND: Wind Speed and Direction (page 108)
6.18
Printing and Exporting Displays
IRIS Product and Display User Guide M211319EN-H
258 RESTRICTED
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