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NTIS 바로가기Journal of Korea Water Resources Association = 한국수자원학회논문집, v.50 no.11, 2017년, pp.781 - 793
임창수 (경기대학교 공과대학 토목공학과)
In this study, applicabilities of aerodynamic approaches for the estimation of pan evaporation were evaluated on 56 study stations in South Korea. To accomplish this study purpose, previous researchers' evaporation estimation equations based on aerodynamic approaches were grouped into seven generali...
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핵심어 | 질문 | 논문에서 추출한 답변 |
---|---|---|
공기동력학적 방법은 무엇인가? | 증발량을 산정하는 방법 중에 하나인 공기동력학적 방법은 수증기가 수표면으로부터 대기 중으로 전이되는 물리적 현상에 기초하여 증발량을 결정하는 방법이다(Harbeck, 1962; Goddard and Pruitt, 1966; Tanner, 1966; Weisman, 1975; Tyrvainen, 1978; Sill, 1981). 또한, 공기동력학적 방법은 증발량을 산정하는 가장 오래된 방법 중에 하나이지만 (Dalton, 1802; Meyer, 1915; Penman, 1948), 증발수체 내의 열저류를 고려하고 있지 않으며, 또한 전반적으로 다른 증발량 산정방법들과 비교해서 식이 단순하고 보다 적은 기상자료를 필요로 하는 반면에 적절하게 증발량을 산정하는 것으로 발표되었다(Thornthwaite and Holzman, 1939; Meyer, 1944;Sverdrup, 1946; Sutton, 1949; Jensen, 1973). | |
공기동력학적 방법을 적용하여 증발량을 산정하는 경우 요구 되는 기상요소는 무엇인가? | 공기동력학적 방법을 적용하여 증발량을 산정하는 경우 요구되는 기상요소자료는 풍속, 상대습도, 그리고 기온이다. 따라서 과거 연구자들은 연구 대상지역에 이들 기상요소자료 들을 이용하여 증발식들의 매개변수를 경험적으로 추정함으로서 공기동력학적 방법을 이용한 지역별 증발량 산정식들을 제안하였으며, 이런 제안식들은 몇 가지 형식으로 구분할 수있다. | |
증발량을 산정하는 방법은 무엇이 있는가? | 과거 수행되어온 연구결과들에 의하면 증발량을 산정하는 방법에는 다양한 방법들이 있다. 이들 방법에는 물수지 방법(Harbeck et al., 1954;Lapworth, 1965; Gangopaphaya et al., 1966; Guitjens, 1982), 에너지수지 방법(Sene et al., 1991; Stannard and Rosenberry, 1991; Assouline and Mahrer, 1993), 공기동력학적 방법 (Meyer, 1915; Horton, 1919; Rohwer, 1931; Penman, 1948;Harbeck et al., 1954; Harbeck, 1958; Romanenko, 1961), 그리고 조합법(Penman, 1948; Priestley and Taylor, 1972;Stewart and Rouse, 1976; Linacre, 1993) 등이 있다. |
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