Figure 3From: Groundwater, possibly originated from subducted sediments, in Joban and Hamadori areas, southern Tohoku, JapanRelationship between I/Cl weight ratio and temperature of deep groundwater. Seawater temperature (4°C) was calculated as an annual average of seawater off Fukushima Prefecture, at a depth of 400 m in 2013, using data from the Japan Meteorological Agency (2013).Back to article page