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Soil Moisture Profile Effect on Radar Signal Measurement
CETP/CNRS, 10-12 av. de l'Europe, 78140 Vélizy, France
Bureau de Recherches Géologiques et Minières (BRGM), 3- av. C. Guillemin, B.P. 6009, 45060 Orléans cedex 2, France
INRA-Avignon, Centre de Recherches d'Avignon Domaine Saint Paul , Site Agroparc 84914 Avignon cedex 9, France
* Author to whom correspondence should be addressed.
Received: 22 December 2007 / Accepted: 8 January 2008 / Published: 21 January 2008
Abstract: The objective of this paper is to analyze the behaviour of a backscattered signalaccording to soil moisture depth over bare soils. Analysis based on experimental verticalmoisture profiles and ASAR/ENVISAT measurements has been carried out. A modifiedIEM model with three permittivity layers (0-1cm, 1-2cm, 2-5cm) has been developed andused in this study. Results show a small effect of moisture profile on the backscatteredsignal (less than 0.5dB). However, measurements and simulations have provided a moredetailed insight into the behaviour of the radar signal and have shown that it was importantto consistently use the same protocol when performing ground truth measurements of soilmoisture.
Keywords: Soil moisture; ASAR-ENVISAT; IEM; permittivity profile
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Cite This Article
MDPI and ACS Style
Le Morvan, A.; Zribi, M.; Baghdadi, N.; Chanzy, A. Soil Moisture Profile Effect on Radar Signal Measurement. Sensors 2008, 8, 256-270.
Le Morvan A, Zribi M, Baghdadi N, Chanzy A. Soil Moisture Profile Effect on Radar Signal Measurement. Sensors. 2008; 8(1):256-270.
Le Morvan, Aurélie; Zribi, Mehrez; Baghdadi, Nicolas; Chanzy, André. 2008. "Soil Moisture Profile Effect on Radar Signal Measurement." Sensors 8, no. 1: 256-270.