Assessing Water Withdrawals in Scarce-Data Transboundary Areas by Use of Dynamic Precipitation–Flow Relationships: The Case of the Hasbani River Basin

The present study proposes a nonstandard solution to the problem of assessing water withdrawals (AWW) in scarce-data transboundary basin. applied AWW method operates with open-source available data on precipitation and river flow thereby overcomes usual restriction due lack shared use Middle East. Analysis dynamic precipitation-flow relationships enable separate effect from total decline under decreasing precipitation. This is first which provides complete information (1972–2020) total, surface, base Hasbani River (Lebanon). resulting values that exceed by far earlier published estimates were confirmed (i) indirect indices (area irrigated land population), (ii) validation based independent (Israel Water Authority). results are useful for balance estimations, as well management resources Jordan headwaters basin entire Lake Kinneret Basin. can be other basins enables historical real-time monitoring necessary database settlement riparian relations.