Validation of an improved computer algorithm for precipitation echo classification

Due to the character of the original source materials and the nature of batch digitization, quality control issues may be present in this document. Please report any quality issues you encounter to digital@library.tamu.edu, referencing the URI of the item.Includes bibliographical references (leaves 104-108).Issued also on microfiche from Lange Micrographics.A validation of an improved radar reflectivity partitioning scheme was performed using radar data collected for three separate precipitation systems in Central Texas. The improved algorithm was compared to a previously accepted method. Validation was performed using separate convective and stratiform mean vertical reflectivity profiles and mean vertical velocity profiles derived from dual-Doppler velocity data. The results were further validated through the use of convective and stratiform reflectivity and vertical velocity contour frequency by altitude diagrams (CFAD). As a final check, frequency distributions of reflectivity lapse rates in the mixed phase region were also examined. The results show that the new algorithm brings us a step closer in properly partitioning radar reflectivity data into its convective and stratiform parts. However, a few more modifications are needed in order to make it a more functional algorithm