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http://dx.doi.org/10.14191/Atmos.2013.23.4.485

Study on Sensitivities and Fire Area Errors in WRF-Fire Simulation to Different Resolution Data Set of Fuel and Terrain, and Surface Wind  

Seong, Ji-Hye (High-impact Weather Research Center, Forecast Research Division, NIMR/KMA)
Han, Sang-Ok (High-impact Weather Research Center, Forecast Research Division, NIMR/KMA)
Jeong, Jong-Hyeok (High-impact Weather Research Center, Forecast Research Division, NIMR/KMA)
Kim, Ki-Hoon (High-impact Weather Research Center, Forecast Research Division, NIMR/KMA)
Publication Information
Atmosphere / v.23, no.4, 2013 , pp. 485-500 More about this Journal
Abstract
This study conducted WRF-Fire simulations in order to investigate sensitivities of the resolution of fire fuel and terrain data sets, and the surface wind to simulated fire area. The sensitivity simulations were consisted of 8 different WRF-Fire runs, each of which used different combination of data sets of fire fuel and terrain with different resolution. From the results it was turned out that the surface wind was most sensitive. The next was fire fuel and then fire terrain. Unfortunately, every run produced too much fire area. In other words no simulations succeeded in simulating such proper fire area so as for the WRF-Fire to be used realistically. It was 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 the selection of Anderson fuel category in the area of interest seemed to be very critical in the performance of WRF-Fire simulations.
Keywords
WRF-Fire; sensitivity; fuel category; terrain; resolution;
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