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http://dx.doi.org/10.9719/EEG.2022.55.1.45

Hydrological Characteristics of the Underground Discharge at Moolgol in Dokdo, Korea  

Woo, Nam C. (Department of Earth System Sciences, Yonsei University)
Lee, Dong Y. (Department of Earth System Sciences, Yonsei University)
Park, Jong H. (Department of Earth System Sciences, Yonsei University)
Kim, Yoon B. (Ulleungdo.Dokdo Ocean Research Station, Korea Institute of Ocean Science and Technology (KIOST))
Woo, Min S. (Ulleungdo.Dokdo Ocean Research Station, Korea Institute of Ocean Science and Technology (KIOST))
Park, Chan H. (Dokdo Research Center, Korea Institute of Ocean Science and Technology (KIOST))
Publication Information
Economic and Environmental Geology / v.55, no.1, 2022 , pp. 45-51 More about this Journal
Abstract
Whether Dokdo can sustain human habitation or economic life of their own plays an important role to the legal status of the island in the international maritime law. This study reports the hydrological survey results regarding the water resource of the island occurred at Moolgol in Seodo. The amount of underground discharge at Moolgol was estimated at least 1.1 m3/d, conforming the results of previous studies. Based on the oxygen and hydrogen isotope ratios of water, the discharge appeared to originate from precipitation, and about 36% of the daily precipitation moves fast to the Moolgol through the joints developed in the volcanic bedrocks. Quality of the discharged water shows relatively higher concentrations in Cl and NO3 to be used for drinking and domestic purposes, probably affected by the sea spray and waves from surrounding sea and the birds' excretion such as black-tailed gulls.
Keywords
Moolgol; Dokdo; underground discharge; water stable isotope; discharge rate; water quality;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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