This study analyzes the characteristics of Western North Pacific (WNP) tropical cyclone (TC) activity and large-scale environments according to the Western Pacific (WP) teleconnection pattern in summer. In the positive WP phase, an anomalous cyclone and an anomalous anticyclone develop in the low and middle latitudes of the East Asia, respectively. As a result, southeasterlies are reinforced in the northeast area of the East Asia including Korea and Japan which facilitates the movement of TC to this area, whereas northwesterlies are reinforced in the southwest area of the East Asia including South China and Indochina Peninsula which blocks the movement of TC to this area. Due to the spatial distribution of this reinforced pressure system, TCs develop, move, and turn more to the northeast of WNP than those in the negative WP phase. Consequently, the characteristics of this TC activity in the positive WP phase are associated with the location of upper tropospheric jet further to the northeast. Meanwhile, TCs in the negative WP phase mainly move to the west from Philippines toward south China and Indochina Peninsula. Furthermore, due to the terrain effect caused by the high passage frequency of TCs in the mainland China, the intensity of TCs are weaker than those in the positive WP phase.

Abstract
 1. 서 론
 2. 자료 및 분석방법
  2.1. 자료
  2.2. 분석방법
 3. 서태평양 원격패턴에 따른 변화
  3.1. 태풍발생빈도
  3.2. 태풍이동빈도
  3.3. 태풍전향
  3.4. 태풍강도
  3.5. 종관환경
 4. 결론
 REFERENCE

• 최재원(국립기상연구소 연구기획운영과) | Jae-Won Choi (Planning and General Affairs Division, National Institute of Meteorological Research) Corresponding author
• 김정윤(국립기상연구소 연구기획운영과) | Jeoung-Yun Kim (Planning and General Affairs Division, National Institute of Meteorological Research)
• 이승욱(국립기상연구소 연구기획운영과) | Seung-Wook Lee (Planning and General Affairs Division, National Institute of Meteorological Research)