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Proceedings Paper

Sensitivity to soil moisture and roughness by a 5.3 GHz ground-based scatterometer
Author(s): Claudia Notarnicola; Angelo Canio D'Alessio; Domenico Casarano; Francesco Posa; Vincenzo Sabatelli
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Paper Abstract

Six experiments on remote sensing of soil moisture and surface roughness were carried out over bare fields with a microwave scatterometer at a frequency of 5.3 GHz during February 1998 and January-April 2000. Other two experiments in May and June 2001 were conducted under controlled field condition for putting in evidence the radar response sensitivity to soil moisture. Data analysis indicates that a clear dependence of backscattering coefficients on soil moisture variations, with an average sensitivity of 0.25 dB/gr/cm3, when other parameters as roughness and incidence angle remain constant. Regarding surface roughness, a rougher field shows more suitable characteristics for inversion purposes. In fact, backscattering coefficients retain a good sensibility on soil moisture content, after the removal of incidence angle effects. These remote-sensing campaigns are part of an extensive activity where angular and polarization microwave signatures for airborne and ground based radars are collected on bare soils in different soil moisture and roughness conditions.

Paper Details

Date Published: 27 November 2001
PDF: 9 pages
Proc. SPIE 4491, Subsurface and Surface Sensing Technologies and Applications III, (27 November 2001); doi: 10.1117/12.450149
Show Author Affiliations
Claudia Notarnicola, Politecnico di Bari and INFM (Italy)
Angelo Canio D'Alessio, Politecnico di Bari and INFM (Italy)
Domenico Casarano, ENEA CR Trisaia and INFM (Italy)
Francesco Posa, Politecnico di Bari and INFM (Italy)
Vincenzo Sabatelli, ENEA CR Trisaia and INFM (Italy)


Published in SPIE Proceedings Vol. 4491:
Subsurface and Surface Sensing Technologies and Applications III
Cam Nguyen, Editor(s)

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