Measuring Surface Roughness Height to Parameterize Radar Backscatter Models for Retrieval of Surface Soil Moisture

@article{Bryant2007MeasuringSR,
  title={Measuring Surface Roughness Height to Parameterize Radar Backscatter Models for Retrieval of Surface Soil Moisture},
  author={Ross Bryant and Mary Susan Moran and David Thoma and Chandra D. Holifield Collins and Susan Skirvin and Mohammed Magfurar Rahman and K. Slocum and Patrick J. Starks and David D. Bosch and Maria P. Gonz{\'a}lez-Dugo},
  journal={IEEE Geoscience and Remote Sensing Letters},
  year={2007},
  volume={4},
  pages={137-141}
}
Surface roughness is a crucial input for radar backscatter models. Roughness measurements of root mean-squared height (hrms) of the same surface can vary depending on the measuring instrument and how the data are processed. This letter addresses the error in hrms associated with instrument bias and instrument deployment issues such as number and length of measurement transects. It was found that at least 20 transect measurements, 3 m in length, for study sites ranging from 3.5 to 1225 m2 in… CONTINUE READING

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