气象学报2012，Vol.70Issue(2)：261-274,14.
中尺度海-气耦合模式GRAPES_OMLM对台风珍珠的模拟研究
Simulative study of Typhoon Chanchu (2006) using the mesoscale coupled air-sea model GRAPES_OMLM
摘要
Abstract
A new mesoscale coupled air-sea model was developed based on the Global/Regional Assimilation and Prediction System (GRAPES) with the improved Mellor-Yamada type Ocean Mixed Layer Model (OMLM) employed. Using this GRAPES_ OMLM model, Typhoon Chanchu (2006) was simulated to test the ability of the GRAPES_OMLM in typhoon research and investigate the impact of local air-sea interaction on typhoon. The results show that thc GRAPES_OMLM is able to catch the main physical processes of the typhoon weather. The simulated minimum surface pressure, maximum wind near the typhoon center and the typhoon's track in the coupled model where the air-sea interaction is included are better consistent with the observation than those in the uncoupled model. Furthermore, compared to the experiment Ctrl_l with unchanged SST condition, the results of the Ctrl_2 in which daily mean SST is adopted have a bit improvement as well. The SST simulated in the coupled model is also very close to the observation with the maximum SST cooling of more than 4. 0℃, which is located at the right of Chanchu's track. There is an inverse correlation between the change of SST and the surface wind stress, and the increasing of wind stress will induce TKE's rise with wind-inducing mixing as the main reason for the SST cooling. Moreover, SST cooling can weaken the typhoon's intensity and change the typhoon's circulation structure through reducing the heat flux from the o-cean, as well as change the WN-1 structure of the Potential Vorticity Tendency which affects the typhoon's track,关键词
耦合模式/台风模拟/局地海-气相互作用Key words
Coupled model/ Simulation of typhoon/ Local air-sea interaction分类
天文与地球科学引用本文复制引用
王子谦,段安民,郑永骏,刘琨,梁旭东,马光..中尺度海-气耦合模式GRAPES_OMLM对台风珍珠的模拟研究[J].气象学报,2012,70(2):261-274,14.基金项目
国家重点基础研究发展计划(2009CB421403)、财政部、科技部公益性行业(气象)科研专项(GYHY200806007)以及中国科学院项目百人计划暨知识创新工程重要方向项目(KZCX2-YW-BR-14) （2009CB421403）
