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Correlation between Microwave Scattering and Emission from Land and Sea at 13.9 GHz

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2 Author(s)
Sobti, A. ; University of Kansas Center for Research, Inc., Remote Sensing Laboratory, Lawrence, KS 66045.now with the Motorola Communications Division, Schaumburg, IL 60172 ; Moore, R.K.

Correlations have been calculated between active and passive microwave responses received by the S-193 radiometer-scatterometer on Skylab. Over both land and sea the correlations between polarizations are high, but the correlation between radiometer and scatterometer response at 30° incidence is negligible. This suggests that multipolarization instruments with this crude resolution (greater than 10 km in all cases) are redundant, but a combination of radiometer and scatterometer is useful. Correlations among the responses at different angles suggest that the five angles used in Skylab are more than would be useful between 0° and 48° in future instruments, but that instruments with three angles of measurement would be useful. In small areas, conclusions based on these large-data-set averages may need to be modified.

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Geoscience Electronics, IEEE Transactions on  (Volume:14 ,  Issue: 2 )