[1] CTR ETUD ENVIRONM TERRESTRE & PLANETAIRES,F-78140 VELIZY VILLACOUBL,FRANCE
[2] ENGREF,CEMAGREF,COMMUN TELEDETECT LAB,F-34033 MONTPELLIER,FRANCE
[3] PENN STATE UNIV,CTR EARTH SYST SCI,UNIVERSITY PK,PA 16802
[4] INRA,F-78850 THIVERVAL GRIGNON,FRANCE
[5] USDA ARS,HYDROL LAB,BELTSVILLE,MD 20705