台风“芭玛”(2009)近海突然加强的模拟研究  

Simulation studies on the sudden offshore strengthening of typhoon“Parma”(2009)

作　　者：曾小团[1] 黄海洪[2] 罗建英[1] 黄荣成[1] 李佳颖[1] Zeng Xiaotuan;Huang Haihong;Luo Jianying;Huang Rongeheng;li Jiaying(Guangxi Meteorological Observatory,Nanning Guangxi 530022;Guangxi Institute of Meteoroiogical,Disaster Mitigation,Nanning Guangxi 530022)

机构地区：[1]广西区气象台,南宁530022 [2]广西区气象减灾研究所,南宁530022

出　　处：《气象研究与应用》2018年第3期1-6,共6页Journal of Meteorological Research and Application

基　　金：广西科技重点研发计划项目(桂科AB16380267)资助

摘　　要：通过对台风"芭玛"在北部湾近海突然加强过程进行模拟研究,结果表明:台风"芭玛"突然加强过程中其内部暖心结构有显著变化;弱冷空气被不断从台风环流外围卷入到台风低层内部,抬升暖湿气流促进水汽凝结潜热释放;台风"芭玛"在其突然加强过程中存在环流重组情况,其环流内圈包括极大风速等的分布不断对称化发展,并将其外围的螺旋云系进行重新整合,将外围周边的对流云团发展释放的能量不断卷入到台风环流中,同时将外围松散正涡度重新组织到台风内部;综合因子叠加作用使得台风"芭玛"在近海突然加强。Based on the simulation study on the sudden offshore strengthening process of typhoon ＂Parma＂ in Beibu Gulf, we found that there were significant changes in the warm heart structure of typhoon ＂Parma＂ during the sudden strengthening pro- cess. Weak cold air was constantly drawn into the inner lower part of the typhoon from the periphery of the typhoon circulation, and lifting warm moist airflow promoted latent heat release from condensation of water vapor.During the process of sudden in- tensification, there were some circulation reorganizations, it means the distribution of the inner circle including the maximum wind speed showed constant symmetrization development, and the peripheral spiral structure was readjusted, involving the en- ergy released by peripheral convective clouds into the typhoon circulation, at the same time,reorganizing the loose positive vor- ticity of the periphery into the typhoon interior. All the above factors combined to make typhoon ＂Parma＂ suddenly strength- ened in offshore Beibu Gulf.

关 键 词：台风 数值模拟 北部湾 突然加强 暖心结构 

分 类 号：P458.124[天文地球—大气科学及气象学]