The Characteristics of Air Temperature according to the Location of Automatic Weather System

AWS 설치장소에 따른 기온 특성

  • Joo, Hyong-Don (Climate and Information Division, Gwangju Regional Meteorological Office, KMA) ;
  • Lee, Mi-Ja (Climate and Information Division, Gwangju Regional Meteorological Office, KMA) ;
  • Ham, In-Wha (Climate and Information Division, Gwangju Regional Meteorological Office, KMA)
  • 주형돈 (기상청 광주지방기상청 기후정보과) ;
  • 이미자 (기상청 광주지방기상청 기후정보과) ;
  • 함인화 (기상청 광주지방기상청 기후정보과)
  • Received : 2005.08.11
  • Accepted : 2005.09.30
  • Published : 2005.09.30

Abstract

Due to several difficulties, a number of Automatic Weather Systems (AWS) operated by Korea Meteorological Administration (KMA) are located on the rooftop so that the forming of standard observation environment to obtain the accuracy is needed. Therefore, the air temperature of AWSs on the synthetic lawn and the concrete of the rooftop is compared with the standard observation temperature. The hourly mean temperature is obtained by monthly and hourly mean value and the difference of temperature is calculated according to the location, the weather phenomenon, and cloud amount. The maximum and the minimum temperatures are compared by the conditions, such as cloud amount, the existence of precipitation or not. Consequently, the temperature on the synthetic lawn is higher than it on the concrete so that it is difficult to obtain same effect from ASOS, on the contrary the installation of AWS on the synthetic lawn seem to be inadequate due to heat or cold source of the building.

Keywords