ASCAP is an acronym for the Air–Sea interaction, Cloud And Precipitation experiment over the Baltic Sea, a component of BALTEX.
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ASCAP is a comprehensive campaign for an air–sea interaction field campaign in the Baltic Sea, with the central aim being to improve model parameterization schemes via a better understanding of the physical mechanisms and validation of remote sensing algorithms. The objectives are:
Measurements of parameters determining air–sea interaction processes, the sea state, and wave spectra;
In–situ measurements and observations of clouds, water vapor and precipitation;
Parameterization of air–sea interaction processs in region models;
Validation of algorithms to estimate cloud parameters, water vapor and precipitation from radar and satellite data; and
Validation of numerical models against long–term measurements.
The measurement phase of this experiment took place from 1995 until 1997.