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MODIS 인공위성 이미지를 이용한 Priestley-Taylor기반 공간 잠재증발산 산정: 낙동강유역을 중심으로

Title
MODIS 인공위성 이미지를 이용한 Priestley-Taylor기반 공간 잠재증발산 산정: 낙동강유역을 중심으로
Other Titles
Spatial Estimation of Priestley-Taylor Based Potential Evapotranspiration Using MODIS Imageries: the Nak-dong river basin
Author
최민하
Keywords
Potential Evapotranspiration; Pan Evaporation; MODIS; Priestley-Taylor algorithm; Remote Sensing
Issue Date
2012-10
Publisher
대한원격탐사학회
Citation
대한원격탐사학회지, 2012, 28(5), P.521-529, 9P.
Abstract
본 연구에서는, 수문순환과정의 중요한 요소인 증발산의 지역적 특성을 고려한 정확한 산정을 위하여 Moderate Resolution Imaging Spectroradiometer (MODIS) 인공위성 데이터를 이용한 원격탐사 기술을 적용하였다. Priestley-Taylor 방법으로 한반도 전역에서의 잠재 증발산을 산정하고 공간적인 거동을 파악하고자 하였다. 산정된 잠재 증발산을 바탕으로 낙동강 유역의 기상청 증발접시 증발량과 비교를 통해 지역적인 적용성을 확인하였다. 포항 기상대에서는 소형 증발접시 0.70, 대형 증발접시 0.55의 상관 계수를 가지며, 문경 기상대의 결과는 소형 증발접시 0.62, 대형 증발접시 0.52의 상관 계수를 갖는다. The evapotranspiration (ET) is one of the most important factor in the hydrological cycle, In this study, remote sensing based ET algorithm using Moderate Resolution Imaging Spectroradiometer (MODIS) was considered, Then, Priestley-Taylor algorithm was used for estimation of potential evapotranspiration in South Korea, and its spatial distribution was analyzed, Overall applicability between estimated potential evapotranspiration and weather station pan evaporation in Nakdong river basin was represented. The results using small pan showed that correlation coefficient in Pohang and Moonkyung Station was 0.70 and 0.55, respectively. However, the results using large pan showed correlation coefficient in Pohang and Moonkyung Station was 0.62 and 0.52, respectively
URI
http://koreascience.or.kr/article/ArticleFullRecord.jsp?cn=OGCSBN_2012_v28n5_521http://hdl.handle.net/20.500.11754/50762
ISSN
1225-6161
DOI
10.7780/kjrs.2012.28.5.5
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > CIVIL AND ENVIRONMENTAL ENGINEERING(건설환경공학과) > Articles
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