Comparisons of remotely sensed and model-simulated soil moisture over a heterogeneous watershed

D. S. Lin, E. F. Wood, P. A. Troch, M. Mancini, T. J. Jackson

Research output: Contribution to journalArticle

23 Scopus citations

Abstract

Soil moisture estimates from a distributed hydrologic model and two microwave airborne sensors (Push Broom Microwave Radiometer and Synthetic Aperture Radar) are compared with ground measurements on two different scales, using data collected during a field experiment over a 7.4-k m2 heterogeneous watershed located in central Pennsylvania. It is found that both microwave sensors and the hydrologic model successfully reflect the temporal variation of soil moisture. Watershed-averaged soil moistures estimated by the microwave sensors are in good agreement with ground measurements. The hydrologic model initialized by streamflow records yields estimates that are wetter than observations. The preliminary test of utilizing remotely sensed information as a feedback to correct the initial state of the hydrologic model shows promising results.

Original languageEnglish (US)
Pages (from-to)159-171
Number of pages13
JournalRemote Sensing of Environment
Volume48
Issue number2
DOIs
StatePublished - May 1994
Externally publishedYes

ASJC Scopus subject areas

  • Soil Science
  • Geology
  • Computers in Earth Sciences

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