VIL (Vertically Integrated Liquid) is a function of reflectivity, and converts reflectivity data into an equivalent liquid water content value based on drop-size distribution and a reflectivity factor.
VIL is a radar-derived estimate of liquid water (exclusive of ice) that is computed at each grid point from the vertical profile of reflectivity using the following equation (Greene and Clark 1972):
Vertically integrated liquid (VIL) is an estimate of the total mass of precipitation in the clouds. The measurement is obtained by observing the reflectivity of the air which is obtained with weather radar.
VIL is the integration of reflectivity within a column of air. A higher VIL means there is more precipitation in a column of air. At one time it was thought a VIL value is associated with a certain hail size.
VIL is a NEXRAD radar estimate of the total amount of liquid precipitation water (in kg/m2 )in the atmospheric column over a given location. The amount of liquid precipitation water in a given volume can be calculated from the radar reflectivity using a so-called Z-R relation.
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DESCRIPTION: Vertically Integrated Liquid, or VIL, is a calculation that converts a column of reflectivity into its liquid water equivalent. However, it turns out that VIL is seasonally and geographically correlated to hail size.
vil m (oblique and nominative feminine singular vil or vile) horrible; vile; awful low; base