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황사농도 단기예측모델의 PM10 농도와 실측 PM10 농도의 비교
조창범(Changbum Cho),전영신(Youngsin Chun),구본양(Bonyang Ku),박순웅(Soon-Ung Park),이상삼(Sang-Sam Lee),정연앙(Yun-Ang Chung) 한국기상학회 2007 대기 Vol.17 No.1
Simulation results of Asian Dust Aerosol Model (ADAM) for the period of April 7-9, 2006 were analyzed, comparing with observed PM10 data. ADAM simulated around ten times lower than on-site PM10 concentration in the source regions: Zhurihe, Tongliao, Yushe, Dalian and Huimin. As the result of this low concentration, transported amounts of Asian Dust were under-estimated as well. In order to quantify a forecasting accuracy, Bias and RMSE were calculated. Even though remarkably negative Biases and high RMSEs were observed, ADAM simulation had followed well up the time of dust outbreak and a transported path. However, the emission process to generate dust from source regions requires a great enhancement. The PM10 concentration at the surface reached up to 2,300 ㎍ m?³ at Baeknyoungdo and Seoul (Mt. Gwanak), up to 1,750 ㎍ m?³ at KGAWO about 18:00 LST in April 8, respectively; however, ADAM did not simulate the same result on its second peak. It is considered that traveling Asian dust might have been lagged over the Korean peninsula by the blocking of surface high pressure. Moreover, the current RDAPS's 30 km grid resolution (which ADAM adopts as the meteorological input data) might not adequately represent small-scale atmospheric motions below planetary boundary layer.
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