CAJ | 학술논문

国家重点基础研究发展计划（973计划）项目---“台风登陆前后异常变化及机理研究”经过5年（2009-2013年）的研究完成研究任务。项目系统性地开展了16个台风的外场观测试验，在浅水区的海气拖曳系数、边界层高度变化等方面获得新的观测结果；发展了针对登陆台风的多源资料融合方法，例如台风雷达风场反演和同化技术取得进展；揭示了不同尺度系统活动导致台风路径突变、登陆台风复苏、双眼壁的形成等的物理机制；改进了涡旋初始化和积云对流参数化技术，提出了新的云辐射参数化方案，建立了台风海-陆-气耦合模式，台风数值预报关键技术的研发取得明显进展，文中介绍该项目所取得的代表性成果，对台风登陆前后异常变化的科学问题及研究进展进行综述。
국가중점기출연구발전계화（973계화）항목---“태풍등륙전후이상변화급궤리연구”경과5년（2009-2013년）적연구완성연구임무。항목계통성지개전료16개태풍적외장관측시험，재천수구적해기타예계수、변계층고도변화등방면획득신적관측결과；발전료침대등륙태풍적다원자료융합방법，례여태풍뢰체풍장반연화동화기술취득진전；게시료불동척도계통활동도치태풍로경돌변、등륙태풍복소、쌍안벽적형성등적물리궤제；개진료와선초시화화적운대류삼수화기술，제출료신적운복사삼수화방안，건립료태풍해-륙-기우합모식，태풍수치예보관건기술적연발취득명현진전，문중개소해항목소취득적대표성성과，대태풍등륙전후이상변화적과학문제급연구진전진행종술。
Much work has been conducted,and some significant results have been achieved in the National (Key)Basic Re-search and Development (973)Program of China entitled “Unusual Variations of Landfalling Tropical Cyclones and Associated Physical Mechanisms”during 2009-2013.Systematic observations of 16 typhoons have been made,and new observational re-sults about the drag coefficient over shallow water areas and the changes in boundary-layer height were obtained.Notable pro-gress in the multi-source data synthesis and assimilation techniques has been made,particularly in the retrieval of radar wind fields and the associated assimilation.Physical mechanisms for the roles of the systems on different scales in the sudden change of typhoon tracks,the rainfall reinforcement associated with landfalling tropical cyclones,and the formation of concentric eye-walls have also been revealed.Through improving the vortex initialization and cumulus convective parameterization schemes, developing new cloud-radiation parameterization scheme,and establishing an air-land-sea coupled model,the performance of ty-phoon forecasting by regional numerical models in China has been significantly improved.The progress of the Program is sum-marized,and associated scientific issues are discussed.