“…In recent years, hydrogen and oxygen isotopes in water molecules have proven to be very useful tools for meteorological, hydrological, and water resource studies. For example, these isotopes have been used to trace air‐mass sources of regional precipitation (Peng et al ., ; Vodila et al ., ; Stumpp et al ., ), reveal climate variations (Liu et al ., ; Langebroek et al ., ; Hughes and Crawford, ), evaluate the extent of evapotranspiration (Tsujimura and Tanaka, ; Wang and Yakir, ; Rothfuss et al ., ; Peng et al ., ; Rothfuss et al ., ), revise stream water generation (Jeelani et al ., ; Meriano et al ., ; Klaus and McDonnell, ; Dahlke et al ., ), identify groundwater recharge (Praamsma et al , ; Peng et al ., ; Peng et al ., ) and discharge (Peng et al ., ; Bertrand et al ., ), and study the hydrological relations between different water bodies (Wassenaar et al ., ; Mohammed et al ., ).…”