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Marine Atmospheric Boundary Layers Associated with Summer Monsoon Onset over the South China Sea in 1998

ISSN号：1674-7097
期刊名称：《大气科学学报》
时间：0
分类：P732[天文地球—海洋科学] Q959.12[生物学—动物学]
作者机构：[1]Key Laboratory of Tropical Marine Environmental Dynamics＇, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China, [2]Guy Carpenter Asia-Pacific Climate Impact Centre, School of Energy and Environment, City University ofHong Kong, Hong Kong, China, [3]Weifang Marine andEnvironment Monitor Center, Weifang 261401, China
相关基金：Acknowledgements. This work is supported by the Chinese Academy of Sciences （Grant No. KZCX1-YW-12-01）, the National Natural Science Foundation of China （Grant Nos. U0733002 and 40876009）, and The National Basic Research Program of China （Grant No. 2011 CB403504）.

作者： WANG Dong-Xiao[1], ZHOU Wen[2], YU Xiao-Li[1,3], XIE Qiang[1], WANG Xin[1,2]

关键词：海洋大气边界层, 中国南海, 季风爆发, 夏季季风, 大海, 全球定位系统, 南海南部, 南海北部, monsoon onset, marine atmospheric boundary layer height, atmosphere internal dynamics, SST

中文摘要：

与华南海夏天季风联系的海洋的大气的边界层(MABL ) 的变化用鸣每天在 1998 上船研究的 5 月 6 月期间获得四次的数据集的全球放系统(GPS ) 被检验容器 Kexue 1 和 Shiyan 3。MABL 高度在虚拟潜在的温度从表面由 1 K 增加的底层被定义为高度。结果显示 MABL 高度在北华南海(SCS ) 上减少了并且在南部的 SCS 上仍然是一样，当海表面温度(SST ) 相信了北并且为在季风发作以后的南部的 SCS 的玫瑰。在北 SCS 上，在 SST 和表面的减少在发作以后的潜伏热的流动从云导致了 MABL 高度的减小以及 MABL 的去耦。通信了到降雨出现，被发现那 MABL 高度减小。在南部的 SCS 上，为 SST 和表面热流动的经常的增加的一个可能的原因是降雨和内部大气的动力学。

英文摘要：

The variations of the marine atmospheric boundary layer （MABL） associated with the South China Sea Summer Monsoon were examined using the Global Positioning System （GPS） sounding datasets obtained four times daily during May-June 1998 on board Research Vessels Kexue 1 and Shiyan 3. The MABL height is defined as the height at the lowest level where virtual potential temperature increases by 1 K from the surface. The results indicate that the MABL height decreased over the northern South China Sea （SCS） and remained the same over the southern SCS, as sea surface temperature （SST） fell for the northern and rose for the southern SCS after the monsoon onset. Over the northern SCS, a decrease in both the SST and the surface latent-heat flux after the onset resulted in a reduction of the MABL height as well as a decoupling of MABL from clouds. It was found that MABL height reduction corresponded to rainfall occurrence. Over the southern SCS, a probable reason for the constant increase of SST and surface heat flux was the rainfall and internal atmospheric dynamics.

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