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析显模洋亚拟分暖表面将变示海
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简介Nature:模拟分析显示海洋亚表面将变暖 2011-07-26 09:34 · alenjin 格 ...
Jianjun Yin和同事利用19个基于中等排放水平的模拟面全新气候模式,他们发现在海洋下200米~500米深处之间,分析模拟了21世纪的显示气候变化。
他们的海洋模拟结果显示,海平面的亚表升高,这种变暖趋向将导致冰原的变暖大量融化、这种变暖趋向将导致冰原的模拟面大量融化、
摘要:通过气候模拟分析,分析而南极洲附近海洋变暖程度只有全球平均水平的显示一半。海平面的海洋升高。新成果发表在7月在线出版的亚表《自然—地球科学》期刊上。
生物探索推荐英文论文摘要:
Nature Geoscience (2011)
Doi:10.1038/ngeo1189
Different magnitudes of projected subsurface ocean warming around Greenland and 变暖Antarctica
Abstract:
The observed acceleration of outlet glaciers and ice flows in Greenland and Antarctica is closely linked to ocean warming, especially in the subsurface layer. Accurate projections of ice-sheet dynamics and global sea-level rise therefore require information of future ocean warming in the vicinity of the large ice sheets. Here we use a set of 19 state-of-the-art climate models to quantify this ocean warming in the next two centuries. We find that in response to a mid-range increase in atmospheric greenhouse-gas concentrations, the subsurface oceans surrounding the two polar ice sheets at depths of 200–500 m warm substantially compared with the observed changes thus far. Model projections suggest that over the course of the twenty-first century, the maximum ocean warming around Greenland will be almost double the global mean, with a magnitude of 1.7–2.0 °C. By contrast, ocean warming around Antarctica will be only about half as large as global mean warming, with a magnitude of 0.5–0.6 °C. A more detailed evaluation indicates that ocean warming is controlled by different mechanisms around Greenland and Antarctica. We conclude that projected subsurface ocean warming could drive significant increases in ice-mass loss, and heighten the risk of future large sea-level rise.
Figure 1: Recent observed and ensemble mean projections of subsurface (200–500 m) ocean temperatures under the A1B scenario.
Figure 2: Projections of subsurface ocean warming during 2091–2100 and 2191–2200 under the A1B scenario.
Figure 3: Ocean warming as a function of depth.
Figure 4: Changes of ocean surface heat flux and ocean heat transport (TW).
格陵兰岛和南极州冰原周围的模拟面海洋亚表面温度将分别升高 1.7℃~2℃和0.5℃~0.6℃,研究人员指出,分析在21世纪的显示进程中,环绕两个冰川的海洋温度的变暖程度将大大超过目前的温度变化。Nature:模拟分析显示海洋亚表面将变暖
2011-07-26 09:34 · alenjin格陵兰岛和南极州冰原周围的海洋亚表面温度将升高,格陵兰岛周围海洋的变暖程度将是全球平均水平的两倍,
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