JpGU-AGU Joint Meeting 2017

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[JJ] Oral

A (Atmospheric and Hydrospheric Sciences) » A-CG Complex & General

[A-CG51] [JJ] Coastal Ecosystems - 1. Water Cycle and Land-Ocean Interactions

Wed. May 24, 2017 9:00 AM - 10:30 AM 301A (International Conference Hall 3F)

convener:Jun Shoji(Hiroshima University), Ryo Sugimoto(Faculty of Marine Biosciences, Fukui Prefectural University), Makoto Yamada(Research Institute for Humanity and Nature), Masahiko Fujii(Faculty of Environmental Earth Science), Chairperson:Jun Shoji(Hiroshima University), Chairperson:Ryo Sugimoto(Faculty of Marine Biosciences, Fukui Prefectural University), Chairperson:Makoto Yamada(Research Institute for Humanity and Nature), Chairperson:Masahiko Fujii(Faculty of Environmental Earth Science)

9:45 AM - 10:00 AM

[ACG51-03] Evaluation of submarine groundwater discharge in a ria coast at the eastern Kyushu island using Rn isotopes

Hiroyuki Nishimura1, Shusaku Otake2, Kazuyoshi Miyamura2, *Ryo Sugimoto1 (1.Faculty of Marine Biosciences, Fukui Prefectural University, 2.Oita Prefectural Agriculture, Forestry and Fisheries Research Center)

Keywords:Submarine groundwater discharge, Ria coast, 222Rn

Ria coast is thought to have a high potential for groundwater discahrge adn related nutrient fluxes from land to coastal sea due to a topgraphic property. However, there is little knowledge about submarine groundwater discharge in ria coast in Japan. In this study, we have evaluated the rate of submarine groundwater discahrge and associated nutrient fluzes in the small coastal embayment along the ria coast at the eastern Kyusyu uinsg 222Rn.