Analyzing surface and upper air meteorological observations in the form of a time cross section is a concise form of simulating atmospheric conditions over a particular location. Using these observations and DMSP satellite data, procedures for estimating the liquid water content within regions of cloud and precipitation have been derived. The procedures for deriving the liquid water content profiles have evolved over a five-year period, and it is the purpose of this report to describe the current methodology. The profiles of liquid water content are used as input for a determination of the erosion severity index (ESI). The advantage of the techniques described is that estimates or a climatology of ESI can be obtained in any part of the world through an analysis of readily available meteorological observations. (Author)

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