气象学报2011，Vol.69Issue(6)：933-944,12.
西北太平洋台风“海棠”结构的GPS下投式探空仪观测分析
Observational analysis of the structure of Typhoon Haitang (0505) over the western North Pacific by using the GPS Dropsonde data.
摘要
Abstract
On the basis of the global positioning system (GPS) dropsondes data collected in the Dropsonde Observations for Typhoon Surveillance near the Taiwan Region (DOTSTAR) . The vertical kinetic and thermodynamic structures of the strong typhoon named Haitang (0505) over the western North Pacific are analyzed and compared for its different development stages. The results show that not only the kinetic structure but also the thermodynamic structure of Haitang's is more robust in the second surveillance than the first surveillance, which is manifested by the stronger and larger scope of cyclonic inflow and the upper-level warm core, as well as the developed anticyclonic outflow. Besides, Haitang was moving to the high SST region and situated in a favorable environment with weak vertical wind shear, and it therefore intensified during the second stage. The same data are also used to validate the published related numerical simulation results (Frank and Ritchie 1999, 2001) , which show that the vertical wind shear can induce a wavenumber one asymmetry in the eyewall structure and has strong effect on the asymmetric structure of the tropical cyclone. The presented observational results are well consistent with their modeling results and explain how the vertical wind shear possibly produces a pronounced asymmetric structure in Haitang.关键词
台风"海棠"/下投式探空仪/台风结构/垂直风切变Key words
Typhoon Haitang/Dropsonde/Structure of typhoon/Vertical wind shear分类
天文与地球科学引用本文复制引用
舒守娟,王元,宋金杰..西北太平洋台风“海棠”结构的GPS下投式探空仪观测分析[J].气象学报,2011,69(6):933-944,12.基金项目
资助课题 （）
国家自然科学基金项目(40905020和40830958)、国家重点基础研究发展规划973项目(2009CB421502)、高等学校博士学科点专项科研基金(20090091120038)、中央高校基本科研业务费专项资金(1117020704)和中国气象科学研究院灾害天气国家重点实验室开放课题(2007LASW02). （40905020和40830958）
