Robustness of the Simulated Tropospheric Response to Ozone Depletion
Robustness of the Simulated Tropospheric Response to Ozone Depletion
复制标题
DOI：
10.1175/jcli-d-16-0817.1
复制
发表时间：
2017-03
影响因子：
4.9
通讯作者：
W. Seviour;D. Waugh;L. Polvani;G. Correa;C. Garfinkel
中科院分区：
文献类型：
--
作者：
W. Seviour;D. Waugh;L. Polvani;G. Correa;C. Garfinkel
最近的研究表明，南半球对流层环流对臭氧消耗的模拟响应的大小在模型间存在很大差异。这种不一致可能是由于不同的模式动力学、不同的臭氧强迫或统计不确定性造成的。在这里，分析了夏季对流层对臭氧消耗的响应，在一系列气候模型模拟中，其复杂性逐渐增加。这使得可以仔细测试响应对一系列因素的敏感性，包括模型的选择、规定的海面温度和温室气体浓度、包括耦合海洋、规定的臭氧浓度的时间分辨率以及包括相互作用的化学。在所有的模拟中都发现了温带急流一致的极移。所有的模拟也显示了温带急流的加强和哈德利环流南缘的加宽，但这些范围的大小…
AbstractRecent studies have shown large intermodel differences in the magnitude of the simulated response of the Southern Hemisphere tropospheric circulation to ozone depletion. This inconsistency may be a result of different model dynamics, different ozone forcing, or statistical uncertainty. Here the summertime tropospheric response to ozone depletion is analyzed in an array of climate model simulations with incrementally increasing complexity. This allows the sensitivity of the response to a range of factors to be carefully tested, including the choice of model, the prescribed sea surface temperatures and greenhouse gas concentrations, the inclusion of a coupled ocean, the temporal resolution of the prescribed ozone concentrations, and the inclusion of interactive chemistry. A consistent poleward shift of the extratropical jet is found in all simulations. All simulations also show a strengthening of the extratropical jet and a widening of the southern edge of the Hadley cell, but the magnitude of these...