Motomu Ibaraki is known internationally for his work on theoretical aspects of mass transport, contaminant hydrogeology, and groundwater modelling. He is currently conducting research on the human health and environmental problems caused by changes in water quality and quantity. His other research fields include scientific communication and water/energy sustainability. He is a core developer of United States Geological Survey’s groundwater flow simulator MODFLOW.Hiroko Mori has a Bachelor’s degree in Chemical Engineering and a Master’s in Hydrology. She is currently a PhD student in the Environmental Science graduate program at Ohio State University, USA. Her research interests include coupling hydrological models and mosquito life cycle models to investigate vector-borne disease transmission in the Northern Great Plains region.