A surface‐trapped intrusion of slope water onto the continental shelf in the Mid‐Atlantic Bight
A surface‐trapped intrusion of slope water onto the continental shelf in the Mid‐Atlantic Bight
复制标题
表面截留的斜坡水侵入中大西洋湾大陆架
DOI：
--
复制
发表时间：
1996
期刊：
影响因子：
--
通讯作者：
J. Bisagni
中科院分区：
文献类型：
--
作者：
G. Gawarkiewicz;C. Linder;J. Lynch;A. Newhall;J. Bisagni
1995年8月，在南图克特浅滩以南的陆架坡进行的高分辨率水文断面调查显示，一种不寻常的表面截留盐水侵入大陆架。侵入限于水柱上方25米，并深入到100米等深线以下15公里处，这是陆棚断裂前缘的典型位置。侵入体内的最大盐度为35.0。在表层存在几个强射流，沿陆架方向的最大速度在0.30和0.44 m s-1之间。卫星热成像证实在该剖面的近海边缘存在一个暖心环，并显示一个暖特征穿透100米等深线的海岸。
A high-resolution hydrographic transect across the shelfbreak south of Nantucket Shoals in August, 1995, revealed an unusual surface-trapped intrusion of saline Slope water onto the continental shelf. The intrusion was confined to the upper 25 m of the water column and penetrated 15 km shoreward of the 100-m isobath, the typical position of the shelfbreak front. The maximum salinity within the intrusion was 35.0. Several strong jets were present within the surface layer with maximum velocities between 0.30 and 0.44 m s -1 in the alongshelf direction. Satellite thermal imagery confirms the presence of a warm-core ring at the offshore edge of the section and shows a warm feature penetrating shoreward of the 100-m isobath.