WRF-Fire 산불 연료·지형자료 해상도와 지상바람의 연소면적 모의민감도 및 오차 분석연구
Study on Sensitivities and Fire Area Errors in WRF-Fire Simulation to Different Resolution Data Set of Fuel and Terrain, and Surface Wind
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초록
This study conducted WRF-Fire simulations in order to investigate sensitivities ofthe resolution of fire fuel and terrain data sets, and the surface wind to simulated fire area. Thesensitivity simulations were consisted of 8 different WRF-Fire runs, each of which used differentcombination of data sets of fire fuel and terrain with different resolution. From the results itwas turned out that the surface wind was most sensitive. The next was fire fuel and then fireterrain. Unfortunately, every run produced too much fire area. In other words no simulationssucceeded in simulating such proper fire area so as for the WRF-Fire to be used realistically. Itwas verified that the errors of fire area from each runs were contributed by 41%, 53%, and 6%from surface wind, fire fuel, and fire terrain, respectively. Finally this study suggested that theselection of Anderson fuel category in the area of interest seemed to be very critical in the performanceof WRF-Fire simulations.
Abstract
This study conducted WRF-Fire simulations in order to investigate sensitivities ofthe resolution of fire fuel and terrain data sets, and the surface wind to simulated fire area. Thesensitivity simulations were consisted of 8 different WRF-Fire runs, each of which used differentcombination of data sets of fire fuel and terrain with different resolution. From the results itwas turned out that the surface wind was most sensitive. The next was fire fuel and then fireterrain. Unfortunately, every run produced too much fire area. In other words no simulationssucceeded in simulating such proper fire area so as for the WRF-Fire to be used realistically. Itwas verified that the errors of fire area from each runs were contributed by 41%, 53%, and 6%from surface wind, fire fuel, and fire terrain, respectively. Finally this study suggested that theselection of Anderson fuel category in the area of interest seemed to be very critical in the performanceof WRF-Fire simulations.
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