장파복사 모형의 매개변수 추정 KCI

Title
장파복사 모형의 매개변수 추정
Alternative Title
Parameters Estimation in Longwave Radiation Formula
Author(s)
조홍연; 이길하; 이정미
KIOST Author(s)
Cho, Hong Yeon(조홍연)
Publication Year
2012-04
Abstract
Daily net radiation is essential for heat budget analysis for environmental impact assessment in the coastal zone and longwave radiation is an important element of net radiation because there is a significant exchange of radiant energy between the earth's surface and the atmosphere in the form of radiation at longer wavelengths. However, radiation data is not commonly available, and there has been no direct measurement for most areas where coastal environmental impact assessment is usually most needed. Often an empirical equation, e.g., Penman and FAO-24 formulae is used to estimate longwave radiation using temperature, humidity, and sunshine hour data but local calibration may be needed. In this study, local recalibration was performed to have best fit from a widely used longwave equation using the measured longwave radiation data in Korea Global Atmospheric Watch Center (KGAWC). The results shows recalibration can provided better performance AE=0.23( W/m2 ) and RMSE=14.73( W/m2 ). This study will contribute to improve the accuracy of the heat budget analysis in the coastal area.
ISSN
1225-7184
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/1737
Bibliographic Citation
환경영향평가, v.21, no.2, pp.239 - 246, 2012
Publisher
한국환경영향평가학회
Keywords
Longwave radiation; heat-budget analysis; calibration; Penman and FAO-24 formulae; net radiation
Type
Article
Language
Korean
Publisher
한국환경영향평가학회
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