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Temporal brightness temperature signatures of land, sea and snow/ice at 19.35, 22.235 and 31.4 CHz

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Abstract

Around 100 temporal brightness temperature (TB) signatures at 19.35, 22.235 and 31.4 GHz pertaining to broad regions of Land, Sea and Snow/Ice have been extracted from Indian Satellite Bhaskara-II microwave radiometers data. Statistical techniques are adopted to arrive at these signatures by careful study of the brightness temperature data acquired over Indian sub-continent during Dec., 1981 to August, 1983. A discussion on the moisture retention characteristics of Indian Soils is presented to facilitate the understanding of the signatures. Distinct variations in TB signatures are noticed for 19.35 GHz and 22.235 GHz. However, definite conclusions could not be drawn for 31.4 GHz as the data seem to be noisy in many cases.

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Authors and Affiliations

  1. Centre of Studies in Resources Engineering Indian Institute of Technology, Bombay

    K. S. Bao, B. K. Mohan & P. Venkatachalam

  2. All India Soil and Land Use Survey, New Delhi

    R. L. Karale & K. K. Narula

Authors
  1. K. S. Bao
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  2. B. K. Mohan
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  3. P. Venkatachalam
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  4. R. L. Karale
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  5. K. K. Narula
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Bao, K.S., Mohan, B.K., Venkatachalam, P. et al. Temporal brightness temperature signatures of land, sea and snow/ice at 19.35, 22.235 and 31.4 CHz. Jour.Ind.Soc. Remote Sensing 14, 9–22 (1986). https://doi.org/10.1007/BF03007227

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  • DOI: https://doi.org/10.1007/BF03007227

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