1. Porter School of Environmental Studies, Tel-Aviv University; Tel-Aviv 69989 Israel
2. Department of Geography and Human Environment, Remote Sensing Laboratory; Tel Aviv University; Tel-Aviv 69989 Israel
3. Department of Electrical and Electronics Engineering; Ariel University; Ariel 40700 Israel
4. Soil Erosion Research Station, Ministry of Agriculture and Rural Development; Beit Dagan 50250 Israel