Variability of surface velocity in the Kuroshio Current and adjacent waters derived from Argos drifter buoys and satellite altimeter data  

作　　者：马超 吴德星 林霄沛 

机构地区：[1]Physical Oceanography Laboratory,Ocean University of China

出　　处：《Chinese Journal of Oceanology and Limnology》2009年第2期208-217,共10页中国海洋湖沼学报（英文版）

基　　金：Supported by the National Basic Research Program of China (973 Program, Nos. 2007CB411804, 2005CB422303);the NSFC (No. 40706006);the Key Project of International Science and Technology Cooperation Program of China (No. 2006DFB21250);the "111 Project" (B07036);the Program for New Century Excellent Talents in University (NECT-07-0781)

摘　　要：By combining Argos drifter buoys and TOPEX/POSEIDON altimeter data, the time series of sea-surface velocity fields in the Kuroshio Current (KC) and adjacent regions are established. And the variability of the KC from the Luzon Strait to the Tokara Strait is studied based on the velocity fields. The results show that the dominant variability period varies in different segments of the KC: The primary period near the Luzon Strait and to the east of Taiwan Island is the intra-seasonal time scale; the KC on the continental shelf of the ECS is the steadiest segment without obvious periodicity, while the Tokara Strait shows the period of seasonal variability. The diverse periods are caused by the Rossby waves propagating from the interior ocean, with adjustments in topography of island chain and local wind stress.By combining Argos drifter buoys and TOPEX/POSEIDON altimeter data, the time series of sea-surface velocity fields in the Kuroshio Current （KC） and adjacent regions are established. And the variability of the KC from the Luzon Strait to the Tokara Strait is studied based on the velocity fields. The results show that the dominant variability period varies in different segments of the KC： The primary period near the Luzon Strait and to the east of Taiwan Island is the intra-seasonal time scale; the KC on the continental shelf of the ECS is the steadiest segment without obvious periodicity, while the Tokara Strait shows the period of seasonal variability. The diverse periods are caused by the Rossby waves propagating from the interior ocean, with adjustments in topography of island chain and local wind stress.

关 键 词：ARGOS ALTIMETER KUROSHIO VARIABILITY 

分 类 号：P731.2[天文地球—海洋科学]