Accession Number : ADA265492


Title :   Determination of the Robustness of Passive Microwave Measurements and Derivative Parameters for Use in Precipitation Discrimination Over Land.


Descriptive Note : Master's thesis


Corporate Author : AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH


Personal Author(s) : Shattuck, John S


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a265492.pdf


Report Date : Jan 1992


Pagination or Media Count : 114


Abstract : In this study, a large set of microwave and infrared parameters, derived from the Special Sensor Microwave/Imager (SSM/I) and the Indian Geosynchronous Satellite (INSAT), are examined to qualitatively determine how much contrast exists between raining and non-raining conditions over land. The precipitation regime of the Indian summer monsoon was chosen for the evaluation testbed. Each of the microwave parameters contain measurements which were enhanced, through a deconvolution technique, to match the spatial resolution of the 85 GHz channel (15 x 13 km). The microwave and infrared measurements are grouped into Probability Distribution Functions (PDFs) and Cumulative Distribution Functions (CDFs) containing one week of measurements for each parameter and time of satellite measurement within a Indian subdivision. The mean and standard deviation of each PDF and the slope and intercept factors of each CDF are tested for robustness against weekly subdivisional raingage data.


Descriptors :   *ARTIFICIAL SATELLITES , *ATMOSPHERIC PRECIPITATION , ALGORITHMS , PROBABILITY DISTRIBUTION FUNCTIONS , INFRARED EQUIPMENT , THESES , MICROWAVE EQUIPMENT


Subject Categories : Meteorology


Distribution Statement : APPROVED FOR PUBLIC RELEASE