Title :
Spatial inhomogeneities of rain brightness temperature and averaging effect for satellite microwave radiometer observations
Author :
Kutuza, B.G. ; Hornbostel, A. ; Schroth, A.
Author_Institution :
Inst. of Radio Eng. & Electron., Acad. of Sci., Moscow, Russia
Abstract :
The analysis of brightness temperature data, obtained by the Olympus ground station, Oberpfaffenhofen, Germany, is presented. Long time measurements with 19.2 GHz polarimetric radiometer allowed the investigation of temporal variability of atmospheric radio emission for stratiform (Nb) and cumuliform (Cb) precipitation. Conversion of temporal variations to spatial units was performed utilizing wind speed measurements. The square root of the structure function was taken as a measure for the variation intensity of brightness temperature T. Average values of T and rain rate over areas with diameters from 1 km to 15 km show significant differences
Keywords :
atmospheric techniques; microwave measurement; radiometry; rain; remote sensing; 19.2 GHz; Olympus; SHF; atmosphere; averaging effect; cumuliform; measurement technique; meteorology; microwve radiometry; polarimetry; radio emission; rain brightness temperature; remote sensing; satellite microwave radiometer observations; spatial inhomogeneity; stratiform; temporal variability; Atmospheric measurements; Brightness temperature; Niobium; Performance evaluation; Radiometry; Rain; Satellite ground stations; Time measurement; Velocity measurement; Wind speed;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 1994. IGARSS '94. Surface and Atmospheric Remote Sensing: Technologies, Data Analysis and Interpretation., International
Conference_Location :
Pasadena, CA
Print_ISBN :
0-7803-1497-2
DOI :
10.1109/IGARSS.1994.399567
