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首页> 外文期刊>SOLA: Scientific Online Letters on the Atmosphere >Stratospheric Sudden Warming with Projected Global Warming and Related Tropospheric Wave Activity
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Stratospheric Sudden Warming with Projected Global Warming and Related Tropospheric Wave Activity

机译：预计全球变暖和相关对流层波活动的平流层突然变暖

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References(14) Cited-By(1) Supplementary materials(1) Stratospheric sudden warming (SSW) in association with projected global warming (GW) in the Northern Hemisphere was investigated by 20th-century and 21st-century simulations (20CS and 21CS) using the atmosphere-ocean coupled general circulation model. Composite analysis revealed that the model simulated 20th-century dynamical aspects of SSW well. Although SSW events in early winter are missing, considering difficulties in reasonable SSW simulation, we regard the 20CS results as reference values. The 21CS suggests that forcing by GW increases the number of both major and minor SSW events in Dec, Jan, and early Feb, in correlation with larger eddy heat flux (EHF) at 100 hPa in Nov, Dec, and early Jan. The increase of the flux mainly originates from tropospheric stationary wave response. The greater flux continues until early Jan and then the polar night jet is much more weakened in Feb. This background state then effectively blocks wave propagation into the stratosphere and the EHF at 100 hPa slightly decreases though the difference is not statistically significant. The major SSW events decreases in Mar.
机译：参考文献（14）被引用的依据（1）补充材料（1）通过20世纪和21世纪的模拟（20CS和21CS）研究了北半球的平流层突然变暖（SSW）与预计的全球变暖（GW）的关系。使用大气-海洋耦合的一般环流模型。综合分析表明，该模型很好地模拟了20世纪SSW的动力学方面。尽管缺少初冬的SSW事件，但考虑到合理的SSW模拟的困难，我们将20CS结果作为参考值。 21CS表明，GW的强迫作用增加了12月，1月和2月初的主要SSW事件和次要SSW事件的数量，并且与11月，12月和1月初100 hPa的较大涡热通量（EHF）相关。通量的变化主要来自对流层平稳波响应。更大的通量一直持续到1月初，然后极夜喷射在2月更加减弱。这种背景状态然后有效地阻止了波传播到平流层，并且100 hPa的EHF略有减小，尽管差异没有统计学意义。 3月主要的SSW事件减少。

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