Eddy-Induced Heat Transport in the Subtropical North Pacific from Argo, TMI, and Altimetry Measurements
Eddy-Induced Heat Transport in the Subtropical North Pacific from Argo, TMI, and Altimetry Measurements
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DOI：
10.4067/s0717-65382004000300033
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发表时间：
2005-04
期刊：
影响因子：
0.1
通讯作者：
B. Qiu;Shuiming Chen
中科院分区：
文献类型：
--
作者：
B. Qiu;Shuiming Chen
摘要利用卫星反演的海平面高度和温度资料（温度资料来自TRMM微波成像仪（TMI））与Argo浮标温盐资料相结合，估算了中尺度海洋涡旋引起的海盆尺度热输运。在北太平洋副热带环流中，中尺度涡旋的暖（冷）温异常总是位于高（低）SSH异常的西侧。然而，温度和速度异常之间的相位失调，在很大程度上局限于季节性温跃层，导致大部分的涡流引起的热传输进行在表面200米层。通过建立涡动热量输送的表层积分值与深度积分值之间的统计关系，利用近6年同期卫星SSH/SST资料反演了流域尺度涡动热量输送。在黑潮延伸区，曲折的纬向急流产生相反符号的涡动热通量。因此，...
Abstract Basin-scale heat transport induced by mesoscale oceanic eddies is estimated by combining satellite-derived sea surface height and temperature [temperature data are from the TRMM Microwave Imager (TMI)] data with Argo float temperature–salinity data. In the North Pacific Ocean subtropical gyre, warm (cold) temperature anomalies of mesoscale eddies are found to be consistently located to the west of high (low) SSH anomalies. The phase misalignment between the temperature and velocity anomalies, however, is largely confined to the seasonal thermocline, causing most of the eddy-induced heat transport to be carried in the surface 200-m layer. By establishing a statistical relationship between the surface and depth-integrated values of the eddy heat transport, the basin-scale eddy heat transport is derived from the concurrent satellite SSH/SST data of the past six years. In the Kuroshio Extension region, the meandering zonal jet is found to generate oppositely signed eddy heat fluxes. As a result, the ...