Huntsville '96: an experiment in ground-based microwave remote sensing of soil moisture
'Huntsville '96' was an experiment in ground-based remote sensing to acquire data needed to test and refine algorithms to estimate soil moisture on bare and vegetated plots. Remote sensing instruments included a L, S, and C band microwave radiometer and a L, C, and X-band radar. The remote sensing measurements were supported with automated and manual measurements of numerous soil and vegetation variables. The remote sensing instruments were able to detect both the large surface moisture changes due to rainfall and subsequent drying as well as the diurnal fluctuations in moisture. These data will be used to refine techniques to estimate moisture in the surface layer of soil, address issues related to the sensitivity of algorithms, the integration of data from passive and active systems, and the use of surface soil moisture estimates to increase the accuracy of soil moisture profile estimates. Although in-depth analyses of the data are underway, collaboration with other investigators is being encouraged.
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