A new technique to infer convective rainfall from satellite infrared cloud observationsGLAS-2, a modified version of the GLAS-1 technique developed by Negri et al. (1984) for estimating convective precipitation from GEO-satellite IR data, is introduced and demonstrated on the data set for the Florida Area Cumulus Experiment in 1980. In GLAS-2, rain cells are located by identification of all local blackbody-temperature minima below 253 K in an array of GOES digital data, and rain parameters are assigned on the basis of the one-dimensional cloud model of Adler and Mack (1984). The demonstration results are presented in graphs and tables and compared with those of GLAS-1 and a number of other methods as well as radar and rain-gage measurements. The false-alarm rate for GLAS-2 is found to be 0.54, somewhat better than that of other satellihte methods; further improvements are suggested.
Document ID
19850055586
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Negri, A. J. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Adler, R. F. (NASA Goddard Space Flight Center Laboratory for Atmospheric Sciences, Greenbelt, MD, United States)
Date Acquired
August 12, 2013
Publication Date
January 1, 1984
Subject Category
Meteorology And Climatology
Meeting Information
Meeting: Conference on Satellite/Remote Sensing and Applications