Drought Assessment Using Tritium River Water Measurements for Existing Dam Infrastructure in the Ishikari River basin, Japan

Maksym Gusyev1, Uwe Morgenstern2, Michael K Stewart2, Yusuke Yamazaki3, Kazuhisa Kashiwaya4, Daisuke Kuribayashi5, Hisaya Sawano3 and Yoichi Iwami6, (1)Fukushima University, Fukushima, Japan, (2)GNS Science-Institute of Geological and Nuclear Sciences Ltd, Lower Hutt, New Zealand, (3)ICHARM International Centre for Water Hazard And Risk Management, Tsukuba, Japan, (4)Civil Engineering Research Institute for Cold Region, Sapporo, Japan, (5)International Centre for Water Hazard and Risk Management (ICHARM), Public Works Research Institute (PWRI), Tsukuba, Japan, (6)International Centre for Water Hazard And Risk Management(ICHARM), PWRI, Tsukuba, Japan