Critical discussion on the "observed" water balances of five sub-basins in the Everest region

摘要: The hydrometeorological components of five Dudh Koshi River sub-basins on the Nepalese side Mount Everest have been monitored during four hydrological years (2013-2017), with altitudes ranging from 2000 m to top, areas between 4.65 and 1207 km², proportions glaciated nil 45%. This data set is completed glacier mass balance observations. analysis observed resulting water balances show large uncertainties different types: aleatory, epistemic or semantic, following classification proposed by Beven (2016). discussion illustrated using results two modeling approaches, physical (ISBA, Noilhan Planton, 1996) conceptual (J2000, Krause, 2001), as well scale obtained way a recent remote sensing processing method.