GSTDTAP  > 气候变化
DOI10.1029/2020GL092075
How strongly are mean and extreme precipitation coupled?
Nidhi Nishant; Steven C. Sherwood
2021-05-11
发表期刊Geophysical Research Letters
出版年2021
英文摘要

Changes in mean and extreme precipitation are among the most important consequences of climate change. Here we examine the relationship between the mean and three different measures of extreme precipitation over Australia, from a regional climate model (RCM) ensemble. We show that model uncertainty in mean and extreme precipitation are tightly coupled for both the present‐day climate and future changes. On the continental scale strong correlations (0.79‐0.99) are observed across models between the changes in mean and extreme precipitation. We also find that except in eastern coastal regions, precipitation statistics projected by RCM are highly predictable (∼ 60‐70% of variance explained) from the mean precipitation of the global model (GCM) providing the boundary conditions. In coastal locations where RCMs are more accurate than GCMs for the present climate they are less predictable, hence provide information—but this impact disappears for climate change, suggesting that improved present‐day accuracy may not carry over to climate change.

领域气候变化
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文献类型期刊论文
条目标识符http://119.78.100.173/C666/handle/2XK7JSWQ/326732
专题气候变化
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GB/T 7714
Nidhi Nishant,Steven C. Sherwood. How strongly are mean and extreme precipitation coupled?[J]. Geophysical Research Letters,2021.
APA Nidhi Nishant,&Steven C. Sherwood.(2021).How strongly are mean and extreme precipitation coupled?.Geophysical Research Letters.
MLA Nidhi Nishant,et al."How strongly are mean and extreme precipitation coupled?".Geophysical Research Letters (2021).
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