*Mutsunori Yamamoto¹, Koki Kashiwaya², Brenda Ariesty Kusumasari², Yohei Tada⁴, Tada-nori Goto³, Katsuaki Koike² (1.Osaka Museum of Natural History, 2.Kyoto University, Laboratory of Environmental Geosphere Engineering Department of Urban Management Graduate School of Engineering, 3.University of Hyogo, Earth-Science Laboratory, Graduate School of Science , 4.Kyoto University, Laboratory of Environmental Geosphere Engineering Department of Urban Management Graduate School of Engineering (previous affiliation))

*Mochamad Iqbal^1,2, Koki Kashiwaya¹, Katsuaki Koike¹ (1.Kyoto University, 2.Institut Teknologi Sumatera)

*Oliver S. Schilling^1,2, Yama Tomonaga^1,4, Pertti Ala-Aho³ (1.Hydrogeology, Department of Environmental Sciences, University of Basel, Switzerland, 2.Tracer Hydrogeology, Eawag - Swiss Federal Institute of Aquatic Science and Technology, Switzerland, 3.Snow Hydrology and Modeling, Water, Energy and Environmental Research Unit, University of Oulu, Finland, 4.Entracers GmbH, Switzerland)

*MORI Ueyama¹, MAKOTO Kagabu¹ (1.Faculty of Environmental Science, Nagasaki University)