Currents and mixing in the Irminger Sea and in the Iceland Basin
Currents and mixing in the Irminger Sea and in the Iceland Basin
复制标题
伊尔明格海和冰岛盆地的洋流和混合
DOI：
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发表时间：
1995
期刊：
影响因子：
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通讯作者：
W. Krauss
中科院分区：
文献类型：
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作者：
W. Krauss
根据法罗群岛沿62M-0N向格陵兰岛的水文剖面和大约20个卫星跟踪浮标的部署，表明伊明格海流在雷克雅内斯海岭分支。其总运输量为17-18西沃特。伊明格海流的东部分支（8sv）转向东部，通过法罗-设得兰海峡（3sv）和法罗群岛的东北部进入挪威海。在东西格陵兰洋流的外缘，最大速度可达70厘米/秒-1。在流入伊尔明格盆地的四个水团之间观察到非常强烈的混合。涡流搅拌对强交织、后续盐指化和双扩散分层起主导作用。这些过程的条件几乎在伊尔明格海的任何地方都是最佳的。
On the basis of a hydrographic section from the Faeroe Islands toward Greenland along 62M-0N and the deployment of about 20 satellite-tracked buoys, it is shown that the Irminger Current branches at the Reykjanes Ridge. Its total transport amounts to 17-18 Sv. The eastern branch of the Irminger Current (8 Sv) turns east and enters the Norwegian Sea both through the Faeroe-Shetland Channel (3 Sv) and by passing northeast of the Faeroe Islands. Maximum speeds of 70 cm s -1 are reached at the outer edge of the East and West Greenland Current. Very intensive mixing is observed between the four water masses that flow into the Irminger Basin. Stirring by eddies plays a dominant role for strong interleaving, subsequent salt fingering, and double-diffusive layering. Conditions for these processes are optimal nearly everywhere in the Irminger Sea.