MEMBERSHIPS
- American Water Resources Association
- American Water Works Association
- American Geophysical Union
- Israel Association of Hydrology and Water Resources
- International Association of Hydrological Sciences
- International Water Resources Association
- The International Water Academy
- International League of Humanists
- Senior Advisor, International Year of Planet Earth
HONORS
- Chi Epsilon Civil Engineering Honor Society, 1967
- Foreign Member of the Spanish Academy of Sciences, 1994
- Fellow of the American Society of Civil Engineers, 1994
- Fellow of the American Geophysical Union, 1997
- Life Member of the American Society of Civil Engineers, 2001
- International Hydrology Prize 2000, by IAHS, UNESCO and WMO
- Julian Hinds Award of the American Society of Civil Engineers 2003 “For Meritorious Contributions to Water Resources Development”
- 2006 Priestly Lecturer, Australian CSIRO Marine and Armospheris Reseach Division
- Honorary Member of the Israeli Water Association, 2009
- Life-long Acheivement Award of the Israel Water Association, awarded in 2013
- Fellow of the Environment and Water Resources Institute (EWRI) of the American Society of Civil Engineers (ASCE), inducted in 2013
- Fellow of the International Union of Geodesy and Geophysics (IUGG), 2015
- Distinguished Member ASCE, 2019