Comparison of remote sensing data with in-situ wind observation during the development of the South China Sea monsoon
Li, J; Wang, DX; Chen, J; Yang, L; dxwang@scsio.ac.cn
2012
发表期刊CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY
ISSN0254-4059
卷号30期号:6页码:933-943
摘要Wind measurements derived from QuikSCAT data were compared with those measured by anemometer on Yongxing Island in the South China Sea (SCS) for the period from April 2008 to November 2009. The comparison confirms that QuikSCAT estimates of wind speed and direction are generally accurate, except for the extremes of high wind speeds (> 13.8 m/s) and very low wind speeds (< 1.5 m/s) where direction is poorly predicted. In-situ observations show that the summer monsoon in the northern SCS starts between May 6 and June 1. From March 13, 2010 to August 31, 2010, comparisons of sea surface temperature (SST) and rainfall from AMSR-E with data from a buoy located at Xisha Islands, as well as wind measurements derived from ASCAT and observations from an automatic weather station show that QuikSCAT, ASCAT and AMSR-E data are good enough for research. It is feasible to optimize the usage of remote-sensing data if validated with in-situ measurements. Remarkable changes were observed in wind, barometric pressure, humidity, outgoing longwave radiation (OLR), air temperature, rainfall and SST during the monsoon onset. The eastward shift of western Pacific subtropical high and the southward movement of continental cold front preceded the monsoon onset in SCS. The starting dates of SCS summer monsoon indicated that the southwest monsoon starts in the Indochinese Peninsula and forms an eastward zonal belt, and then the belt bifurcates in the SCS, with one part moving northeastward into the tropical western North Pacific, and another southward into western Kalimantan. This largely determined the pattern of the SCS summer monsoon. Wavelet analysis of zonal wind and OLR at Xisha showed that intra-seasonal variability played an important role in the summer. This work improves the accuracy of the amplitude of intra-seasonal and synoptic variation obtained from remote-sensed data.
部门归属[Li Jian; Wang Dongxiao; Chen Ju; Yang Lei] Chinese Acad Sci, State Key Lab Oceanog Trop, S China Sea Inst Oceanol, Guangzhou 510301, Guangdong, Peoples R China
关键词Wind Data South China Sea (Scs) Xisha Islands In-situ Observation Quikscat Ascat Amsr-e
学科领域Limnology ; Oceanography
语种英语
资助项目LTO
WOS记录号WOS:000311286500004
引用统计
被引频次:3[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.scsio.ac.cn/handle/344004/10053
专题热带海洋环境国家重点实验室(LTO)
通讯作者dxwang@scsio.ac.cn
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GB/T 7714
Li, J,Wang, DX,Chen, J,et al. Comparison of remote sensing data with in-situ wind observation during the development of the South China Sea monsoon[J]. CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY,2012,30(6):933-943.
APA Li, J,Wang, DX,Chen, J,Yang, L,&dxwang@scsio.ac.cn.(2012).Comparison of remote sensing data with in-situ wind observation during the development of the South China Sea monsoon.CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY,30(6),933-943.
MLA Li, J,et al."Comparison of remote sensing data with in-situ wind observation during the development of the South China Sea monsoon".CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY 30.6(2012):933-943.
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