אסיף מאגר המחקר החקלאי

The relationship between ERS-2 SAR backscatter and soil moisture: Generalization from a humid to semi-arid transect

Year:

2000

Source of publication :

Authors :

Volume :

21

Co-Authors:

Shoshany, M., Department of Geography, Bar-Ilan University, Ramat-Gan 52900, Israel
Svoray, T., Department of Geography, Bar-Ilan University, Ramat-Gan 52900, Israel, Department of Soil Survey, Land Evaluation and Remote Sensing, Ministry of Agriculture, Tel Aviv 61570, Israel
Curran, P.J., Department of Geography, University of Southampton, Highfield, Southampton SO17 1BJ, United Kingdom
Foody, G.M., Department of Geography, University of Southampton, Highfield, Southampton SO17 1BJ, United Kingdom
Perevolotsky, A., Department of Natural Resources, Agricultural Research Organization, Volcani Centre, P.O.B. 6, Bet Dagan, 50250, Israel

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Abstract:

A linear relationship between ERS-2 SAR backscattering coefficient (σ0) and volumetric soil moisture was determined at both ends of a rainfall gradient in Israel. A Normalized radar Backscatter soil Moisture Index (NBMI) was derived and related strongly to soil moisture concentration. This index may allow the mapping of soil moisture conditions over large areas with C band SAR data.

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