주암댐 주변 안개발생예측 연구

Abstract

This study investigates the characteristics of fog around Juam-dam in Suncheon where is the second foggy area in the country. First, we analyze the frequency of fog phenomena, the meteorological elements, and the correlation between the fog phenomena and the meteorological elements, and the model of the prediction of fog according to day, month and weather. The maximum air temperature is the most significant element of the meterological elements. Its annual correlation figure with fog phenomena is 0.368 and 0.545 in November. The annual mean of occurrence of fog phenomena is 91.7days, which the months from August to November consist of 54.8days. In October which is the most frequent fog phenomena, the maximum air temperature ranges from 13.8℃ to 30.6℃. The model of fog production is made by the multi regression equation and the logistic regression equation of the probability of fog phenomena. The regression equation as follows; - January fog = -0.08214 + 0.00184(maximum air temperature : 0.1℃) + 0.00079(cloud amounts : 1/100) - February fog = -0.12550 + 0.00168(maximum air temperature : 0.1℃) + 0.00102(cloud amounts : 1/100) - March fog = 0.23238 - 0.00450(mean wind speed : 0.1㎧) + 0.00165(850hPa air temperature : 0.1℃) - April fog = -0.02210 + 0.00171(maximum air temperature : 0.1℃) - 0.00818(mean wind speed : 0.1㎧) - May fog = -0.20433 + 0.00249(maximum air temperature : 0.1℃) - 0.00856(mean wind speed : 0.1㎧) - June fog = -0.68945 + 0.00416(maximum air temperature : 0.1℃) - 0.01317(mean wind speed : 0.1㎧) - July fog = 0.77275 - 0.02717(mean wind speed : 0.1㎧) - 0.00400(cloud amounts : 1/100) - August fog = -0.77855 + 0.00485(maximum air temperature 0.1℃) - 0.03280(mean wind speed 0.1㎧) - September fog = -0.30012 + 0.00567(maximum air temperature : 0.1℃) - 0.03645(mean wind speed : 0.1㎧) - October fog = 0.16230 + 0.00126(850hPa air temperature : 0.1℃) + 0.00288(maximum air temperature : 0.1℃) - 0.0719(mean wind speed : 0.1㎧) - November fog = -0.24607 + 0.00413(cloud amounts : 1/100) + 0.00455(maximum air temperature : 0.1℃) - 0.01309(mean wind speed : 0.1㎧) - December fog = -0.30052 + 0.00302(cloud amounts : 1/100) + 0.00388(maximum air temperature : 0.1℃) + 0.00308(cloud amounts : 1/100