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首页> 外文期刊>Annual review of marine science >Annual Review of Marine Science Arctic and Antarctic Sea Ice Change: Contrasts, Commonalities, and Causes
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Annual Review of Marine Science Arctic and Antarctic Sea Ice Change: Contrasts, Commonalities, and Causes

机译：海洋科学北极和南极海冰的年度审查：对比，常见和原因

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Arctic sea ice has declined precipitously in both extent and thickness over the past four decades; by contrast, Antarctic sea ice has shown little overall change, but this masks large regional variability. Climate models have not captured these changes. But these differences do not represent a paradox.The processes governing, and impacts of, natural variability and human-induced changes differ markedly at the poles largely because of the ways in which differences in geography control the properties of and interactions among the atmosphere, ice, and ocean. The impact of natural variability on the ice cover is large at both poles, so modeled ice trends are not entirely inconsistent with contributions from both natural variability and anthropogenic forcing. Despite this concurrence, the coupling of natural climate variability, climate feedbacks, and sea ice is not well understood, and significant biases remain in model representations of the ice cover and the processes that drive it.
机译：在过去的四十年中，北极海冰在范围和厚度方面急剧下降; 相比之下，南极海冰已经表现出很小的整体变化，但这种掩模了大区域变异性。 气候模型没有捕获这些变化。 但这些差异并不代表悖论。管理的过程和自然变异性和人类诱导的变化的影响很大程度上在极大的情况下显着差异，这主要是因为地理差异控制大气中的大气中的性质，冰 和海洋。 两极的冰盖上的自然变异性的影响很大，因此建模的冰趋势与来自自然变异性和人为强制的贡献完全不一致。 尽管这种并发，但自然气候变异性，气候反馈和海冰的耦合并不充分理解，并且仍然存在显着的偏差在冰盖的模型表示和驱动它的过程中。

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