Remote sensing of surface soil moisture from a spaceborne SAR sensor over the Sele plain

Guido D'Urso, Andrea Giacomelli, Marco Mancim, Peter Troch

Research output: Contribution to journalConference articlepeer-review

1 Scopus citations


Backscattering data obtained from ERS-1 SAR imagery are used to verify the ability to detect field scale spatial and temporal variations of surface soil moisture from spaceborne microwave sensors, and to test sub-field scale detection capability. The investigated area is part of the Sele basin, in southern Italy. For two dates, corresponding to satellite overflights of the area during November, 1993, Time Domain Reflectometry (TDR) measurements were taken over a dense sampling grid in two bare soil fields, in order to acquire ground-truth information for soil moisture in the upper 10 cm soil layer. Statistical analysis shows a good agreement between the two types of data at the field scale; at the sub-field scale, a similarity in the spatial structure of TDR and radar signal is found through cross-covariance and covariance analysis. In addition, one of the dates gives the possibility of observing the response of the SAR sensor and of the TDR for a field showing quasi-uniform ponding conditions.

Original languageEnglish (US)
Pages (from-to)516-524
Number of pages9
JournalProceedings of SPIE - The International Society for Optical Engineering
StatePublished - Jan 31 1995
EventMultispectral and Microwave Sensing of Forestry, Hydrology, and Natural Resources 1994 - Rome, Italy
Duration: Sep 26 1994Sep 30 1994

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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