The Currents off the Coast of Queen Maud Land
The Currents off the Coast of Queen Maud Land
复制标题
莫德皇后地海岸附近的洋流
DOI：
--
复制
发表时间：
1953
期刊：
影响因子：
--
通讯作者：
H. Sverdrup
中科院分区：
文献类型：
--
作者：
H. Sverdrup
莫德女王地的“海岸”一般是由浮冰组成的，浮冰厚度约为200米，而底部的深度为300至400米。盛行风与海岸平行，向西吹。气流将低盐度，约50米厚的表层向海岸输送，在那里它必须下降。因此，直接离开冰架的冰，我们发现深度超过200米的低盐度。在夏季，当表层温度约为零度时，靠近冰架下沉的水的温度在冰点以上0.5°到1.0°之间。研究了冰架底部冰融化的问题。结论是，这种融化可能会发生，但它不能解释不同冰架厚度几乎相同的原因。
Abstract The “coast” of Queen Maud Land is generally formed by floating shelf ice which is about 200 m thick whereas the depth to the bottom is 300 to 400 m. The prevailing wind blows parallel to the coast, towards the west. The wind current transports the low salinity, about 50 m thick surface layer towards the coast where it must descend. Therefore, directly off the shelf ice, we find low salinities to a depth of more than 200 m. In summer, when the surface layer has a temperature about zero degree, the water that sinks close to the shelf has a temperature that lies from 0.5° to 1.0° above freezing point. The question of melting at the bottom of the shelf ice is examined. The conclusion is that such melting may take place, but it cannot account for the nearly similar thickness of different ice shelves.