The annual variations of the urban heat island in Busan is investigated using surface temperature data measured at 3 automatic weather stations(AWSs) for the 5 years period, 2006 to 2010. Similar to previous studies, the intensity of the urban heat island is calculated using the temperature difference between downtown(Busanjin, Dongnae) and suburb(Gijang). The maximum hourly mean urban heat island are 1.4℃ at Busanjin site, 2300LST and 1.6 ℃ at Dongnae site, 2100LST. It occurs more often at Dongnae than Busanjin. Also the maximum hourly mean urban heat island appears in November at both sites. The urban heat island in Busan is stronger in the nighttime than in the daytime and decreases with increasing wind speed, but it is least developed in summer. Also it partly causes the increasement of nighttime PM10 concentration.

Abstract
 1. 서 론
 2. 재료 및 방법
 3. 결과 및 고찰
  3.1. 지점별 평균기온 분포
  3.2. 시간대별 도시열섬 강도
  3.3. 도시열섬 발생빈도 분포
  3.4. 도시열섬 강도와 기상인자와의 관계
  3.5. 도시열섬 강도와 대기오염도와의 관계
 4. 결 론
 참 고 문 헌

• 도우곤(부산광역시 보건환경연구원) | Woo-Gon Do (Busan Metropolitan City of Institute of Health and Environment)
• 정우식(인제대학교 대기환경정보공학과/대기환경정보연구센터) | Woo-Sik Jung (Department of Atmospheric Environment Information Engineering/Atmospheric Environment Information Research Center, Inje University) Corresponding author