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Progress in Earth and Planetary Science
Fig. 1 | Progress in Earth and Planetary Science

Fig. 1

From: High-resolution mapping and time-series measurements of 222Rn concentrations and biogeochemical properties related to submarine groundwater discharge along the coast of Obama Bay, a semi-enclosed sea in Japan

Fig. 1

a Location of the study site, Obama Bay. b Map showing the continuous 222Rn monitoring track (dotted line), the station at which the time-series measurements of 222Rn were made, and the seepage meter (star mark). Monitoring along the coastline from a boat was conducted from A to D. c Schematic illustration of the deployment of the seepage meters and loggers

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