Korean Journal of Agricultural and Forest Meteorology, Vol. 4, No. 4, (2002), pp. 203~212
ⓒ Author(s) 2014. CC Attribution 3.0 License.
(2002년 09월 06일 접수; 2002년 10월 15일 수락)
Monthly Normals of Daily Minimum Temperature
(2)Department of Ecosystems Engineering/Institute of Life Science and Natural Resources,
Kyung Hee University, Suwon 449-701, Korea
(Received September 06, 2002; Accepted October 15, 2002)
주로 도시에 소재하는 표준기상관측소 자료의 공간 내삽에 의해 일 최저기온의 평년값을 추정할 때, 도시 열섬효과의 전이에 의해 전원지역에서 과다추정 되는 오류를 수정하기 위해 본 연구를 수행하였다. 도시열섬효과의 공간적인 확산을 모의하기 위해 먼저 불연속적인 변량인 시군 행정구역단위 인구를 지표피복도 상의 시가지 픽셀에만 할당하여 규칙적인 격자점 단위의 평균인구로 변환함으로써 연속적인 변량인 수치인구모형(DPM)으로 표현하였다. 다섯 가지 평활화 DPM 가운데 최적으로 판명된 사방 2.5 km DPM과 기온추정 오차간 회귀식을 기존의 거리-고도 보정 내삽과정에 결합하였다. 이 방법을 적용하여 추정된 평년(1971-2000) 월별 일 최저기온의 추정오차는 기존방법에 비해 최소 50%가 개선되었다.
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