• Journal of the Korean earth science society
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• v.21 no.1
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• pp.51-58
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• 2000

This study was performed to accumulate database for natural sulfur emissions in the Yellow Sea region of Korea. The atmospheric concentrations of dimethylsulfide(DMS) were measured during two intensive field experiments (April and September 1999) from Duk-Juk Island located in the Yellow Sea. Ship-measurement of DMS was made additionally between Chungdo(China) and Inchun(Korea) across the Yellow Sea during June 1999. The mean(and ISD) of DMS concentrations in Duk-Juk Island during two field campaigns was $24.0{\pm}40.5$(n=40, April) and $61.1{\pm}37.9$ pptv(n=35, September), respectively. The atmospheric DMS measured from ship experiments was generally low and close to the background concentrations in the open sea area. The temporal distributions of DMS concentration were complicated in some sense but comparable to those of ambient meteorological parameters. On the basis of our measurements of atmospheric DMS(and evidence found from previous studies), the sea-to-air flux of DMS in the Yellow Sea is estimated to be about 4Gg S/yr. This amount of natural S emissions is relatively lower than the estimates derived for Cheju Island. Therefore, additional experiments may be desperate to derive more reliable figures for natural sulfur emissions in the Yellow Sea region.

• Proceedings of the Korea Air Pollution Research Association Conference
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• 1999.10a
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• pp.319-322
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• 1999

최근 전지구적인 규모로 일어나고 있는 기상이변과 엘리뇨(El Nino)와 같은 현상들은 대기중 탄산가스농도의 증가와 그로 인한 지구온난화가 주요 원인중의 하나로 추정되고 있다. 이산화탄소를 위시한 여러 온난화가스들은 지표면에서 방출되는 태양의 복사열을 흡수하여 대기권 밖으로 열의 이동을 차단하는 효과를 발휘한다. 이러한 온난화 현상은 화석연료의 사용으로 대표되는 인간의 산업활동과 밀접한 연관성을 띠는 것으로 밝혀졌다 (김＆이, 1999).(중략)