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

Volume

3

fYear

1994

fDate

8-12 Aug 1994

Firstpage

1789

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/IGARSS.1994.399567

Filename

399567