3.24 VVP: Velocity Volume Processing
Figure 35 VVP Example Configuration
VVP provides line graphs or time against height cross-sections of wind speed, wind
direction and divergence against height.
VVP obtains the following parameters averaged over a volume centered about the radar:
• Horizontal wind speed and direction
• Particle vertical velocity (airspeed and particle fallspeed combined)
• Horizontal divergence (related to vertical air motions)
• Horizontal deformation and axis of dilatation (related to frontal forcing)
• Average reflectivity
• Average RhoHV
You can select which data is calculated and store the resulting product. You can also turn
data and be on or o. Note that for the top 4 velocity-related buttons, any button turned on
implies those above are also turned on. You must also turn on at least one data type.
This algorithm is similar to the VAD technique, with an improved analytical approach.
1)
1) See Waldteufel and Corbin (1979, Journal of Applied Meteorology, p. 532).
IRIS Product and Display User Guide M211319EN-H
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