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Are the transient and equilibrium climate change patterns similar in response to increased CO_2?

机译：瞬态和平衡气候变化模式是否响应CO_2增加了？

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After a CO_2 increase, whether the early transient and final equilibrium climate change patterns are similar has major implications. Here, we analyze long-term simulations from multiple climate models under increased CO_2, together with the extended simulations from CMIP5, to compare the transient and equilibrium climate change patterns under different forcing scenarios.Results show that the normalized warming patterns (per 1 K of global warming) are broadly similar among different forcing scenarios (including abrupt 2 3 CO_2, 4 3 CO_2, and 1% CO_2 increase per year) and during different time periods, except for the first 50 years or so when warming is weaker over the North Atlantic and Southern Ocean but stronger over most continents. During the first 200 years, this consistency is stronger over land than over ocean, but is lower in midlatitudes than other regions. Normalized precipitation change patterns are also similar, albeit to a lesser degree, among different forcing scenarios and across different time periods, although noticeable differences exist during the first few hundred years with smaller increases over the tropical Pacific. Precipitation over many subtropical oceans and land areas decreases consistently under different forcing scenarios and over all time periods. In particular, the transient and near-equilibrium change patterns for both surface air temperature and precipitation are similar over most of the globe, except for the North Atlantic warming hole, which is mainly a transient feature. The Arctic amplification and land-ocean warming contrast are largest during the first 100-200 years after CO_2 quadrupling but they still exist in the equilibrium response.
机译：在CO_2增加之后，是否早期瞬态和最终均衡气候变化模式具有重要意义。这里，我们分析了从增加的CO_2下的多个气候模型进行了长期模拟，以及CMIP5的扩展模拟，以比较不同强制场景下的瞬态和均衡气候变化模式。结果表明归一化的变暖模式（每1 k全球变暖）在不同的迫使情景（包括2 3 CO_2,4 3 CO_2和每年增加1％CO_2）和在不同的时间段中，除了前50年左右的不同的时间段，在北方的变暖大西洋和南海，但大多数大陆都强。在前200年期间，这种一致性在土地上比海洋更强，但在中间人比其他地区较低。归一化降水变化模式也相似，尽管在不同的迫使情景和不同的时间段中，但在不同的时间段中存在明显的差异，但在热带太平洋上较小的百年增加。在许多亚热带海洋和土地区域的降水在不同的迫使情景下始终如一，并且在所有时间段内都会减少。特别地，除了北大西洋变暖孔之外，表面空气温度和沉淀的瞬态和近平衡变化模式在大部分地球仪外都是相似的，除了北大西洋升温孔，主要是瞬态特征。北极放大和陆海海洋温暖对比是在CO_2四倍化之后的第100-200岁期间最大的，但它们仍然存在于均衡反应中。

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  • 来源
    《Oceanographic Literature Review》 |2020年第10期|2103-2104|共2页
  • 作者

    D. Huang; A. Dai; J. Zhu;

  • 作者单位

    Department of Atmospheric and Environmental Sciences University at Albany State University of New York Albany NY United States;

    Department of Atmospheric and Environmental Sciences University at Albany State University of New York Albany NY United States;

    Department of Atmospheric and Environmental Sciences University at Albany State University of New York Albany NY United States;

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