The influence of the atmosphere on radiometric measurements in the frequency range of 10GHz to 400GHz
Abstract
The influence of the atmosphere on the brightness temperature of ground based objects, the reflectivities of which are known is discussed. Attenuation caused by atmospheric gases and hydrometeors (rain, fog, clouds, snow) is described in detail. Given this attenuation, a computer program for the radiometric transfer equation was compiled. The possibility of determining the brightness temperature for any object on the ground and for any position of the sensor is shown. The brightness temperature was computed for 38 different frequencies. The results are presented as diagrams.
- Publication:
-
NASA STI/Recon Technical Report N
- Pub Date:
- September 1980
- Bibcode:
- 1980STIN...8122275P
- Keywords:
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- Atmospheric Attenuation;
- Brightness Temperature;
- Microwave Attenuation;
- Microwave Radiometers;
- Transfer Functions;
- Atmospheric Density;
- Atmospheric Moisture;
- Computer Programs;
- Precipitation (Meteorology);
- Radiative Transfer;
- Weather;
- Communications and Radar