Large submarine groundwater discharge (SGD) from a volcanic island

Guebuem Kim; Kang‐Kun Lee; Kwan‐Suk Park; Dong‐Woon Hwang; Han‐Soeb Yang

doi:10.1029/2003gl018378

journal article Nov 01, 2003

Large submarine groundwater discharge (SGD) from a volcanic island

Guebuem Kim

Kang‐Kun Lee Kwan‐Suk Park Dong‐Woon Hwang Han‐Soeb Yang

Geophysical Research Letters Vol. 30 No. 21 · American Geophysical Union (AGU)

View at Publisher Save 10.1029/2003gl018378

Abstract

We measured seepage rates of coastal groundwater from a volcanic island, standing in the South Sea of Korea. The seepage rates measured along the sandy coast were in the range 50–300 m/yr, which are much higher than those reported from typical continental coast. The 18O tracer in potential seeping waters signifies that they are mixtures of basal groundwater and pristine seawaters. On the eastern coast of Jeju, almost all groundwater discharge is attributed to recirculating seawater, while fresh groundwater contributes about 20% of the total submarine groundwater discharge (SGD) on the western coast of Jeju. Thus, SGD appears to be important for the management of water resources in western Jeju. The measured radionuclides (228Ra, 226Ra, and 222Rn) and nutrients in the groundwater suggest that the discharge of both fresh and recirculated seawater will have a significant influence on the budget of coastal nutrients and other chemical constituents in this region.

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References

Details

Published: Nov 01, 2003
Vol/Issue: 30(21)
License: View

Authors

G

Guebuem Kim

School of Earth and Environmental Sciences/RIO Seoul National University Seoul Korea

K

Kang‐Kun Lee

School of Earth and Environmental Sciences/RIO Seoul National University Seoul Korea

K

Kwan‐Suk Park

Department of Oceanography Pukyong National University Busan Korea

D

Dong‐Woon Hwang

Department of Oceanography Pukyong National University Busan Korea

H

Han‐Soeb Yang

Department of Oceanography Pukyong National University Busan Korea

Cite This Article

Guebuem Kim, Kang‐Kun Lee, Kwan‐Suk Park, et al. (2003). Large submarine groundwater discharge (SGD) from a volcanic island. Geophysical Research Letters, 30(21). https://doi.org/10.1029/2003gl018378

Large submarine groundwater discharge (SGD) from a volcanic island

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