A raingage, radar and satellite simulation study of the estimation of convective rainfall by area-time integralsCorrelations between area-averaged rainrates and the areal fraction of rainrates exceeding a preset threshold, F(T), are examined using data from a network of 22 raingages located within 120 km of the NOAA/Tropical Ocean-Global Atmosphere (TOGA) C-band meteorological radar at Darwin, Australia. The results show that the area averages of convective rainfall are highly correlated with the fraction F(T). To simulate the use of the relationship between area-averaged rainrates and F(T) to obtain space-time averaged rainrates from a satellite sensor, observations from the NOAA/TOGA radar observations are used to estimate F(T) using a reflectivity threshold. The use of area-time integral methods for inferring area-averaged rainrates from satellites is examined, noting the possible use of the methodology for the Tropical Rainfall Measuring Mission.
Document ID
19900043094
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Short, David A. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Rosenfeld, Daniel (Jerusalem, Hebrew University Israel)
Wolff, David B. (Applied Research Corp. Landover, MD, United States)
Atlas, David (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Date Acquired
August 14, 2013
Publication Date
January 1, 1989
Subject Category
Meteorology And Climatology
Meeting Information
Meeting: Conference on Satellite Meteorology and Oceanography