The coastal ocean response to the global warming acceleration and hiatus.
The coastal ocean response to the global warming acceleration and hiatus.
复制标题
沿海海洋对全球变暖加速和中断的反应
DOI：
10.1038/srep16630
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发表时间：
2015-11-16
影响因子：
4.6
通讯作者：
Kidwell A
中科院分区：
文献类型：
--
作者：
Liao E;Lu W;Yan XH;Jiang Y;Kidwell A
铁路是人类居住、商业和自然资源的基础。自1998年以来，全球气候由全球变暖转向全球变暖间歇期，由极端海表温度（SST）引起的海岸带生态系统灾害不断出现。在全球范围内了解沿海SST变化的任务是一个紧迫的问题。我们对1982 - 2013年全球沿海SST的研究显示，1998年后，低中纬度地区（占全球海岸线的31.4%）出现了明显的降温趋势，而17.9%的全球海岸线同时从降温趋势转变为变暖趋势。北方太平洋和大西洋的趋势反转分别与太平洋年代际涛动和北大西洋涛动的位相变化相一致。这些沿海SST的变化大于全球平均和开阔洋的变化，导致极热/冷日的快速增加，从而导致极热/冷事件。与此同时，相当一部分海岸线（46.7%）的SST持续上升，沿着北方高纬度海岸线的变暖趋势加强。这表明，1998年后，全球变暖在某些地区仍在继续并有所加强，但在低纬度和中纬度地区的变暖趋势较弱。
Coastlines are fundamental to humans for habitation, commerce and natural resources. Many coastal ecosystem disasters, caused by extreme sea surface temperature (SST), were reported when the global climate shifted from global warming to global surface warming hiatus after 1998. The task of understanding the coastal SST variations within the global context is an urgent matter. Our study on the global coastal SST from 1982 to 2013 revealed a significant cooling trend in the low and mid latitudes (31.4% of the global coastlines) after 1998, while 17.9% of the global coastlines changed from a cooling trend to a warming trend concurrently. The trend reversals in the Northern Pacific and Atlantic coincided with the phase shift of Pacific Decadal Oscillation and North Atlantic Oscillation, respectively. These coastal SST changes are larger than the changes of the global mean and open ocean, resulting in a fast increase of extremely hot/cold days and thus extremely hot/cold events. Meanwhile, a continuous increase of SST was detected for a considerable portion of coastlines (46.7%) with a strengthened warming along the coastlines in the high northern latitudes. This suggests the warming still continued and strengthened in some regions after 1998, but with a weaker pattern in the low and mid latitudes.