Meddy trajectories in the Canary Basin measured during the SEMAPHORE experiment, 1993–1995
Meddy trajectories in the Canary Basin measured during the SEMAPHORE experiment, 1993–1995
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1993-1995 年 SEMAPHORE 实验期间测量的加那利盆地的 Meddy 轨迹
DOI：
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发表时间：
1998
期刊：
影响因子：
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通讯作者：
A. Tychensky
中科院分区：
文献类型：
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作者：
P. Richardson;A. Tychensky
作为海洋-大气交换结构：海洋异质性实验研究（信号量）实验的一部分，在加那利盆地发现了四个地中海水涡（Meddies），并用自由漂移的RAFOS浮子进行了跟踪。在葡萄牙圣文森特角以西1700公里处发现的一个巨大而充满活力的梅迪，在1.5年内以3.9厘米/秒的速度向西南方向移动了1700公里，创造了距离和速度纪录。这个梅迪从圣文森特角向麦克道尔和罗斯比[1978]在多米尼加共和国北部发现的可能的梅迪地点行进了57%的距离。观察到两个Meddie在通过亚速尔海流下方或穿过它时与亚速尔海流相互作用，三个Meddie与高大的海山相撞，这似乎扰乱了正常的漩涡速度，在两个案例中可能是致命的。一个梅迪在与海山相撞时似乎分叉了。
As part of the Structures des Echanges Mer-Atmosphere, Proprietes des Heterogeneites Oceaniques: Recherche Experimentale (SEMAPHORE) experiment, four Mediterranean water eddies (Meddies) were identified in the Canary Basin and tracked with freely drifting RAFOS floats. One large and energetic Meddy, discovered 1700 km west of Cape Saint Vincent, Portugal, set a distance and speed record as it translated another 1700 km southwestward at 3.9 cm/s during 1.5 years. This Meddy traveled 57% of the distance from Cape Saint Vincent toward the spot McDowell and Rossby [1978] found a possible Meddy north of the Dominican Republic. Two Meddies were observed to interact with the Azores Current as they passed underneath or through it. Three Meddies collided with tall seamounts, which seemed to disrupt the normal swirl velocity, perhaps fatally in two cases. One Meddy appeared to bifurcate when it collided with seamounts.