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Different roles of Ekman pumping in the west and east segments of the South China Sea Warm Current
  • ISSN号:0253-505X
  • 期刊名称:Acta Oceanologica Sinica
  • 时间:0
  • 页码:1-13
  • 分类:P434[天文地球—大气科学及气象学] TP751[自动化与计算机技术—控制科学与工程;自动化与计算机技术—检测技术与自动化装置]
  • 作者机构:[1]State Key Laboratory of Oceanography in the Tropics, South China Sea Institute of Oceanology, Chinese Academic of Sciences,Guangzhou 510301, China
  • 相关基金:Supported by the National Basic Research Program of China (973 Program) (No. 2011CB403504), the Knowledge Innovation Program of Chinese Academy of Sciences (Nos. KZCX2-YW-Q 11-02, KZCX2-YW-Y202), and the National Natural Science Foundation of China (Nos. 40830851,41006011 )
  • 相关项目:南海环流中的涡致输运及其在环流季节转换中的作用
中文摘要:

从 QuikSCAT 数据导出的风大小与风速表从 2008 年 4 月为时期在华南海(SCS ) 在 Yongxing 岛上测量到 2009 年 11 月的那些相比。比较证实风速度和方向的 QuikSCAT 估计通常是精确的,除了高风速度的极端(> 13.8 m/s ) 并且很低的风速度(< 1.5 m/s ) 在方向糟糕被预言的地方。在原处,观察证明在北 SCS 的夏天季风在 5 月 6 日和 6 月 1 日之间开始。在 Xisha 从2010年3月13日定位了岛到2010年8月31日,海表面温度( SST )的比较和从有从一个浮标的数据的 AMSR-E 的降雨,以及风大小从自动气象站表演源于 ASCAT 和观察那 QuikSCAT , ASCAT 和 AMSR-E 数据对研究足够好。如果验证了与,优化遥远察觉到的数据的用法是可行的在原处大小。显著变化在季风发作期间在风,气压的压力,湿度,出去的 longwave 放射(OLR ) ,空气温度,降雨和 SST 中被观察。西方的和平的副热带的高度和大陆人寒冷前面的向南方的运动的东方移动在 SCS 先于季风发作。SCS 夏天季风的开始的日期显示西南季风在 Indochinese 半岛和形式开始一条东方带的带,然后带在 SCS 区分,与进热带西方的诺思太平洋,和进西方的 Kalimantan 向南方的另外一个向东北的移动的一部分。这大部分决定了 SCS 夏天季风的模式。在 Xisha 的带的风和 OLR 的小浪分析证明 intra 季节的可变性在夏天起了一个重要作用。这个工作改进从遥远感觉的数据获得的 intra 季节、摘要的变化的振幅的精确性。

英文摘要:

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 ofintra-seasonal and synoptic variation obtained from remote-sensed data.

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期刊信息
  • 《海洋学报:英文版》
  • 主管单位:
  • 主办单位:中国海洋学会
  • 主编:潘德炉
  • 地址:北京海淀大慧寺路8号
  • 邮编:100081
  • 邮箱:hyxbe@263.net
  • 电话:010-62179976
  • 国际标准刊号:ISSN:0253-505X
  • 国内统一刊号:ISSN:11-2056/P
  • 邮发代号:82-285
  • 获奖情况:
  • 国内外数据库收录:
  • 俄罗斯文摘杂志,美国化学文摘(网络版),荷兰文摘与引文数据库,美国剑桥科学文摘,美国科学引文索引(扩展库),英国科学文摘数据库,英国动物学记录
  • 被引量:331