A series of meteorological observation using automatic weather system(AWS) carried out to investigate characteristics of nocturnal meteorological characteristics on June 21 ∼ 22, 1999 at Buljeondong mountain slope, Kyungbuk. The measured variables i...
A series of meteorological observation using automatic weather system(AWS) carried out to investigate characteristics of nocturnal meteorological characteristics on June 21 ∼ 22, 1999 at Buljeondong mountain slope, Kyungbuk. The measured variables include dry temperature, relative humidity, wind direction and wind speed. All the monitors are operated automatically. There is also a data logger which is programmed to collect and automatically record data. Measurements are taken and stored in the data logger every 1 minute. Dry temperature at valley was higher than mountain except for about 1 hour(0557 ∼0654LST, June 22, 1999) because of high lapse rate at mountain. Relative humidity was distributed 4 parts according to up and down of wave shape of relative humidity. And relative humidity for early morning(0600 ∼0700LST) decreased in inverse proportion to dry temperature. Wind direction was distributed as relative humidity. The wind direction of valley and mountain had the opposite direction. Wind speed at valley from sunset to next day morning was lower than mountain, but that of valley after sunrise was higher than mountain.