The relationship between brightness temperature and soil moisture Selection of frequency range for microwave remote sensing
作者:
K. S. RAO,
GIRISH CHANDRA,
P. V.NARASIMHA RAO,
期刊:
International Journal of Remote Sensing
(Taylor Available online 1987)
卷期:
Volume 8,
issue 10
页码: 1531-1545
ISSN:0143-1161
年代: 1987
DOI:10.1080/01431168708954795
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
The analysis of brightness temperature data acquired from field and aircraft experiments demonstrates a linear relationship between soil moisture and brightness temperature. However, the analysis of brightness temperature data acquired by the Skylab radiometer demonstrates a non-linear relationship between soil moisture and brightness temperature. In view of the above and also because of recent theoretical developments for the calculation of the dielectric constant and brightness temperature under varying soil moisture profile conditions, an attempt is made to study the theoretical relationship between brightness temperature and soil moisture as a function of frequency. Through the above analysis, the appropriate microwave frequency range for soil moisture studies is recommended.
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