On the ice and heat balance in Fram Strait
On the ice and heat balance in Fram Strait
复制标题
弗拉姆海峡的冰热平衡
DOI：
--
复制
发表时间：
1988
期刊：
影响因子：
--
通讯作者：
N. Untersteiner
中科院分区：
文献类型：
--
作者：
N. Untersteiner
斯匹次卑尔根西北的海冰边缘示意性地表示为一个由相对的冰和温暖的大西洋水平流维持的静止楔形。冰的融化和地表水的冷却产生了一个混合层，其性质与北极盆地其他地方的性质相似。融化前进的冰所需的热能大致相当于西斯匹次卑尔根海流的热损失率，这表明与大气的直接热交换不那么重要。只有一小部分来自冰川融化的几乎是淡水的水通过弗拉姆海峡东部流出，其中大部分似乎回到了北极海盆。它是否有助于北极混合层的形成和维持取决于弗拉姆海峡以北的环流型。的平均风应力场的年际变化的一个例子来说明同样大的变化的冰和地表水循环的可能性。
The sea ice margin northwest of Spitsbergen is schematically represented by a stationary wedge maintained by opposing ice and warm Atlantic water advection. Ice melt and cooling of the surface water generate a mixed layer with properties approximating those found elsewhere in the Arctic basin. The heat energy required to melt the advancing ice is roughly comparable to the rate of heat loss of the West Spitsbergen Current and suggests that direct heat exchange with the atmosphere is less important. Only a small fraction of the nearly fresh water from ice melt exits through eastern Fram Strait, and most of it appears to return to the Arctic basin. Whether or not it contributes to the formation and maintenance of the Arctic mixed layer depends on the largely unknown circulation pattern north of Fram Strait. An example of the large interannual variation of the mean wind stress field is shown to illustrate the likelihood of an equally large variance of the ice and surface water circulation.