Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2021GL093129 |
Reversing Sahelian Droughts | |
Katharine Ricke; Detelina Ivanova; Taylor McKie; Maria Rugenstein | |
2021-07-03 | |
发表期刊 | Geophysical Research Letters
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出版年 | 2021 |
英文摘要 | Earth system modeling of climate geoengineering proposals suggests that the physical outcomes of such interventions will depend on the particulars of the implementation. Here, we present a first attempt to “geoengineer” a well-known teleconnection between sea surface temperatures (SSTs) and Sahelian precipitation. Using idealized earth system model simulations, we show that selectively cooling the Indian Ocean efficiently increases precipitation in the Sahel region, widening the seasonally migrating rainband over Africa. Applying the SST perturbations derived from the idealized experiments to observationally constrained historical ones, we find that our intervention can reverse conditions as extreme as the mid-20th century Sahelian drought, albeit less efficiently than in the idealized simulations. Side effects include changes in the seasonal distribution of Sahelian precipitation and substantial precipitation reductions in sub-Saharan East Africa. This work represents a proof-of-concept illustration of effects that might be expected with a tailored, regional approach to climate intervention. |
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/333805 |
专题 | 气候变化 |
推荐引用方式 GB/T 7714 | Katharine Ricke,Detelina Ivanova,Taylor McKie,et al. Reversing Sahelian Droughts[J]. Geophysical Research Letters,2021. |
APA | Katharine Ricke,Detelina Ivanova,Taylor McKie,&Maria Rugenstein.(2021).Reversing Sahelian Droughts.Geophysical Research Letters. |
MLA | Katharine Ricke,et al."Reversing Sahelian Droughts".Geophysical Research Letters (2021). |
条目包含的文件 | 条目无相关文件。 |
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