Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2021GL093305 |
Diverse dynamical response to orographic gravity wave drag hotspots — a zonal mean perspective | |
P. Sacha; A. Kuchar; R. Eichinger; P. Pisoft; Ch. Jacobi; H. E. Rieder | |
2021-06-16 | |
发表期刊 | Geophysical Research Letters |
出版年 | 2021 |
英文摘要 | In the extratropical atmosphere, Rossby waves (RWs) and internal gravity waves (GWs) propagating from the troposphere mediate a coupling with the middle atmosphere by influencing the dynamics therein. In state-of-the-art chemistry-climate models (CCMs), RW effects are well resolved while the majority of GW effects have to be parameterized. Here, we analyze orographic GW (OGW) interaction with resolved dynamics in a comprehensive CCM on daily time scales. For this, we apply a recently developed method of strong OGW drag event composites for three pronounced northern hemisphere OGW hotspots. We show that strong OGW drag events are associated with anomalous resolved wave propagation in the stratosphere. Causal links are inferred from previously published work and are supported by the anomalies in zonal circulation and wave activity tendencies. The nature of these anomalies varies depending on the hotspot region, which underlines the parameterized OGW-resolved dynamics interaction being a two-way process. |
领域 | 气候变化 |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/330757 |
专题 | 气候变化 |
推荐引用方式 GB/T 7714 | P. Sacha,A. Kuchar,R. Eichinger,等. Diverse dynamical response to orographic gravity wave drag hotspots — a zonal mean perspective[J]. Geophysical Research Letters,2021. |
APA | P. Sacha,A. Kuchar,R. Eichinger,P. Pisoft,Ch. Jacobi,&H. E. Rieder.(2021).Diverse dynamical response to orographic gravity wave drag hotspots — a zonal mean perspective.Geophysical Research Letters. |
MLA | P. Sacha,et al."Diverse dynamical response to orographic gravity wave drag hotspots — a zonal mean perspective".Geophysical Research Letters (2021). |
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