Environmental Definition Program Cross Sectional Analysis; Summary of Data and Analysis Techniques

A unique set of data were compiled and analyses were prepared in support of the Environmental Definition Program (EDP) effort. This data set formed the basic input to the AFCRL second generation model (AFCRL II) which was used to derive a climatology of liquid water content profiles and hydrometeor distribution at selected U.S. and Eurasian locations. The data set consists of conventional and meteorological data (surface and upper air): DMSP satellite imagery; Air Force Global Weather Central's three-dimensional nephanalyses; time-height cross section analyses of temperature, moisture, stability fields; inferred cloud and hydrometeor fields; and cloud nephanalyses based on the DMSP imagery. Approximately 4000 time-height cross sections and 1450 satellite nephanalyses were prepared for the period between 1 February 1973 and 30 January 1974. This report describes the technique used for the preparation of these analyses.