The seasonal cycle of the Arctic Ocean under climate change
The seasonal cycle of the Arctic Ocean under climate change
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DOI：
10.1002/2015gl064514
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发表时间：
2015-09-28
影响因子：
5.2
通讯作者：
Arrigo, Kevin R.
中科院分区：
文献类型：
--
作者：
Carton, James A.;Ding, Yanni;Arrigo, Kevin R.
北冰洋温度的季节性循环很弱，这是由于海冰覆盖的隔热和光散射作用以及冰融化和冻结产生的季节性储存和释放热量的调节作用。近几十年来，海冰的消退和其他变化已经使冬季的地表气温变暖。这些气象变化提出了海洋的季节性循环如何变化的问题。在这里，我们提出了耦合气候模式模拟的结果表明，海冰的损失将大大增加北冰洋海表温度的季节性周期的幅度。根据大气温室气体的增长速度，到2300年，北极海表温度的季节性变化幅度可能超过10摄氏度，大大增加夏季混合层的分层。
The seasonal cycle of Arctic Ocean temperature is weak due to the insulating and light-scattering effects of sea ice cover and the moderating influence of the seasonal storage and release of heat through ice melting and freezing. The retreat of sea ice and other changes in recent decades is already warming surface air temperatures in winter. These meteorological changes raise the question of how the seasonal cycle of the ocean may change. Here we present results from coupled climate model simulations showing that the loss of sea ice will dramatically increase the amplitude of the seasonal cycle of sea surface temperature in the Arctic Ocean. Depending on the rate of growth of atmospheric greenhouse gases, the seasonal range in Arctic sea surface temperature may exceed 10 degrees C by year 2300, greatly increasing the stratification of the summer mixed layer.