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경산에서의 강수의 화학성분과 지상풍과의 관계 KCI 등재

Relationships between Precipitation Component and Surface Wind at Kyungsan, Korea

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한국환경과학회지 (Journal of Environmental Science International)
한국환경과학회 (The Korean Environmental Sciences Society)
초록

This study is an attempt to investigate the chemical components of precipitation and its variation according to surface wind. Precipitation samples were collected by an wet-only precipitation sampler during the period of October 1994 to September 1995 at Kyungsan in Korea. The results obtained in this study are summerized as follows.
The annual average of precipitation pH is 5.0, the highest month of pH is July of 5.5, and the lowest month of pH is December of 4.4. The most frequent appearance is in the range of pH 5.0 to 5.5 and its rate is 56.8%. The order of ion concentration in precipitation is SO4^2->NO3^->Cl^-in case of anion and Ca^2+>NH4^+ >Na^+>Mg^2+ in case of cation. It is found from our analysis that the correlation coefficient among the precipitation pH and ion components is below r=0.3, while the correlation coefficient between SO4^2- and NO3, Na^+ and Cl^- is above r=0.8, respectively.
The mean pH of precipitation is 4.8 under the westerly wind and 5.2 under the easterly wind. The concentrations of anion and cation under the westerly wind are more than the concentrations under the easterly wind. In autumn, the concentration of Na^+ and Cl^- under the easterly wind are higher than the concentration under the westerly wind. The correlation coefficients between wind speed and pH, ion components show very low correlation of -0.41≤r≤0.2. But the present study show that the correlation coefficient between wind speed and pH of precipitation is positive and the correlation coefficients between wind speed and ion concentration is negative.

저자
  • 문영수(경산대 환경과학과) | Yung-Soo MOON
  • 박문기(경산대 환경과학과) | Moon-Ki PARK
  • 김희종(경산대 환경과학과) | Hee-Jong KIM
  • 김경익(경북대 천문대기과학과) | Kyung-Eak KIM
  • 이동인(부산수산대 대기과학과) | Dong-In LEE