Eddies in the Labrador Sea as Observed by Profiling RAFOS Floats and Remote Sensing
Eddies in the Labrador Sea as Observed by Profiling RAFOS Floats and Remote Sensing
复制标题
通过分析 RAFOS 浮标和遥感观测到的拉布拉多海涡流
DOI：
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发表时间：
2002
期刊：
影响因子：
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通讯作者：
M. Prater
中科院分区：
文献类型：
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作者：
M. Prater
摘要利用RAFOS浮标剖面、TOPEX/Poseidon测高和ERS-1上的沿航迹扫描辐射计（ATSR）数据，描述了拉布拉多海涡旋变化的空间和季节特征。海面高度（SSH）变化的峰值出现在两个区域：格陵兰岛西部大陆架附近61.5°N， 52°W附近，3000米等深线与大陆架分离，以及在58°N， 52°W的盆地中心。两个地点的海平面高度变化的季节范围都高达40毫米，格陵兰岛站点在1月至3月的变化最大，比中心站点多50天。来自格陵兰岛海域ATSR的海面温度图像显示，由于西格陵兰洋流注入拉布拉多海内部，形成了许多涡旋，既有气旋的，也有反气旋的。作为拉布拉多海深对流实验的一部分，利用1997年发射的RAFOS浮标剖面数据详细描述了西格陵兰洋流的三个漩涡。之一……
Abstract Data from profiling RAFOS floats, TOPEX/Poseidon altimetry, and the alongtrack scanning radiometer (ATSR) aboard ERS-1 have been used to describe the spatial and seasonal patterns of eddy variability in the Labrador Sea. Peaks in sea surface height (SSH) variability appear in two regions: off the west Greenland shelf near 61.5°N, 52°W where the 3000-m isobath separates from the shelf, and in the center of the basin at 58°N, 52°W. Both locations show seasonal ranges in SSH variability of up to 40 mm, with the Greenland site, having largest variability in January–March, leading the central site by 50 days. A sea surface temperature image from the ATSR at the Greenland site shows numerous eddies, both cyclonic and anticyclonic, being formed by injection of West Greenland Current water into the Labrador Sea interior. Data from profiling RAFOS floats launched in 1997 as part of the Labrador Sea Deep Convection Experiment are used to describe three of the West Greenland Current eddies in detail. One of...