Title :
An algorithm to improve the NEXRAD rain rate estimates
Author :
Ramirez, Nazario D. ; Cruz-Pol, Sandra ; Ortiz, Xiomara ; Castro, Joan M. ; Kuliwoski, Robert
Author_Institution :
Univ. of Puerto Rico - Mayaguez, Mayaguez
Abstract :
A Doppler WSR-88D radar (NEXRAD) is currently operating in Cayey (East of PR, at 886 m). Reflectivity and rain rate (Z-R) relationships were developed using a dense network of rain gauges to validate radar estimates. These equations intent to correct the radar estimates for seasonal effects. Equations were derived for wet and dry seasons over Puerto Rico. To minimize the errors due to beam block and clutter, equations were derived with 20 rain gauges located 15 km or less from the radar location.
Keywords :
Doppler radar; hydrological techniques; rain; remote sensing by radar; Cayey; Doppler WSR-88D radar; NEXRAD rain rate estimates; Puerto Rico dry seasons; Puerto Rico wet seasons; beam block errors; clutter errors; rain gauge network; reflectivity; Doppler radar; Equations; Frequency; Geologic measurements; Meteorological radar; Radar clutter; Rain; Reflectivity; Spaceborne radar; Weather forecasting;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 2007. IGARSS 2007. IEEE International
Conference_Location :
Barcelona
Print_ISBN :
978-1-4244-1211-2
Electronic_ISBN :
978-1-4244-1212-9
DOI :
10.1109/IGARSS.2007.4423491
