고흥만 습지에서 증발산량의 산출 방법
Estimation Method of Evapotranspiration over Goheung bay Wetland
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참고문헌
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초록
증발산은 지표와 대기 사이에서 일어나는 에너지 상호작용에 기여하는 중요한 요소 중 하나이다. 갈대 로 덮인 고흥만 간척지에서 현열, 토양열 그리고 순복사를 측정하여 증발산량을 조사하였다. 자동기상관측 자 료로부터 산출된 증발산량은 구름과 바람의 연직경도가 1s-1보다 미약한 경우를 제외하고 열수지 방정식으로 추정한 값과 잘 일치하였다. 토양열은 순복사의 약 10%로 평가되었다. 갈대로 구성된 식생캐노피 내에서 온도 에 따른 포화수증기압의 변화율( ≅ )이 약 1.5로 근사되었고, 증발산량은 순복사 에너지의 함수로 설 명될 수 있다.
Abstract
Evapotranspiration is an important factor in the nergy interaction proces betwen the surface and theair. Over a vegetable canopy, evapotranspiration was investigated by measuring the sensible heat flux, the soil heatflux and the net radiation flux. Evapotranspiration based on routine AWS data is in god agrement with thatestimated from the nergy balance quation except for weak wind shear les than 1s-1 and a cloudy period. Soilheat flux can be aproximately to 10% of net radiation flux atthe lower layer. When the slope of the saturationvapor presure versus temperature curve () is aproximated to 1.5, the vapotranspiration can be describedin function of the net radiation energy flux over Goheung baywetland covered with the vegetable canopy, reds.
참고문헌 (20)
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