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Proceedings Paper

Retrieval of soil moisture profile by combined C-band scatterometer data and a surface hydrological model
Author(s): Claudia Notarnicola; Angelo Canio D'Alessio; Francesco Posa; Vincenzo Sabatelli; Domenico Casarano
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Paper Abstract

The objective of this work is to develop a method to use radar scatterometer data and a hydrological model in order to retrieve soil behaviour at a level greater than C-band microwave penetration depth. For microwave measurements a C-band FM-CW scatterometer has been employed in two campaigns; the device is able to provide backscattering coefficients in the range of+10 dB and -40 dB for incidence angles between 10° and 60°. Subsequently, microwave scatterometer data have been analysed to estimate their sensitivity to the soil moisture patterns of topsoil comparing them with ground truth measurements. For the validation of these radar data, a coupled heat and moisture balance model has been run to predict the hydrological behaviour of the same topsoil starting from point ground truth measurements. In a second run, soil moisture values derived from scatterometer data should have been used for the initialisation of the model. First attempts have been carried out to propagate the surface physical parameters to unreachable soil layers, such as vertical soil moisture profiles.

Paper Details

Date Published: 21 December 2000
PDF: 12 pages
Proc. SPIE 4173, SAR Image Analysis, Modeling, and Techniques III, (21 December 2000); doi: 10.1117/12.410648
Show Author Affiliations
Claudia Notarnicola, INFM Bari (Italy) and Univ. degli Studi di Bari (Italy)
Angelo Canio D'Alessio, INFM Bari (Italy) and Univ. degli Studi di Bari (Italy)
Francesco Posa, INFM Bari (Italy), Univ. degli Studi di Bari (Italy), and Politecnico di Bari (Italy)
Vincenzo Sabatelli, INFM Bari (Italy) and Ente per le Nuove Tecnologie, l'Energia e l'Ambiente (Italy)
Domenico Casarano, INFM Bari (Italy) and Ente per le Nuove Tecnologie, l'Energia e l'Ambiente (Italy)

Published in SPIE Proceedings Vol. 4173:
SAR Image Analysis, Modeling, and Techniques III
Francesco Posa; Luciano Guerriero, Editor(s)

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