- 다양한 지표면 위에서 총체 전달 방법에 의한 대기 난류 플럭스 추정
- ㆍ 저자명
- 김민성,권병혁,강동환,Kim. Min-Seong,Kwon. Byung-Hyuk,Kang. Dong-Hwan
- ㆍ 간행물명
- Journal of environmental science international
- ㆍ 권/호정보
- 2014년|23권 6호|pp.1199-1211 (13 pages)
- ㆍ 발행정보
- 한국환경과학회
- ㆍ 파일정보
- 정기간행물| PDF텍스트
- ㆍ 주제분야
- 기타
The momentum flux and the sensible heat flux were measured with the scintillometers and ultrasonic anemometers at 6 sites of which surface characteristics like roughness length and zero-displacement are different each other. We estimated the momentum flux and the sensible heat flux based on the bulk transfer method with the drag coefficient and the heat transfer coefficient calculated from the temperature and wind speed at two heights. The variation of bulk transfer coefficients showed a remarkable difference depending on the atmospheric stability which is less influenced by the zero-displacement than the roughness length. The estimated sensible heat fluxes were in good agreement with those measured at 3 m, showing 23.7 $Wm^{-2}$ of the root mean square error that is less than 10% of its maximum. Since the estimated momentum flux is not only effected by drag coefficient but also by wind speed square, the determination of wind speed in the bulk transfer method is critical.