1. Institute of Soil, Water and Environmental Sciences, A.R.O., Volcani Center; Bet Dagan Israel
2. Department of Civil and Environmental Engineering; University of California; Berkeley California USA
3. Division of Hydrologic Sciences; Desert Research Institute; Las Vegas Nevada USA
4. Geography and Environmental Development; Ben-Gurion University of the Negev; Beer Sheva Israel
5. Nicholas School of the Environment; Duke University; Durham North Carolina USA
6. Pratt School of Engineering; Duke University; Durham North Carolina USA