Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2021GL093798 |
Global scaling of rainfall with dewpoint temperature reveals considerable ocean-land difference | |
Haider Ali; Nadav Peleg; Hayley J. Fowler | |
2021-08-02 | |
发表期刊 | Geophysical Research Letters
![]() |
出版年 | 2021 |
英文摘要 | Short-duration rainfall extremes are expected to intensify with warming at around 7%/K, following the Clausius–Clapeyron (CC) relation, causing concomitant increases in flash floods. Observed hourly rainfall extremes show consistent CC-scaling with dewpoint temperature across all land regions. Here, we use two global climate reanalysis products (ERA5 and MERRA-2) to examine consistency in scaling with observations, in ungauged regions and over the oceans. We find that reanalyses underestimate observed scaling, but ERA5 provides better estimates than MERRA-2. Scaling rates at high- and mid-latitudes are similar to observations, at CC, while over the tropics mixed negative- and super-CC scaling rates are seen. We show underestimation of scaling rates over the tropics is related to deficiencies in simulations of extreme rainfall over orographically complex and convection dominated regions. Importantly, both reanalyses indicate scaling rates over the ocean are substantially higher than over land, with implications for extreme weather events originating over the ocean. |
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/335477 |
专题 | 气候变化 |
推荐引用方式 GB/T 7714 | Haider Ali,Nadav Peleg,Hayley J. Fowler. Global scaling of rainfall with dewpoint temperature reveals considerable ocean-land difference[J]. Geophysical Research Letters,2021. |
APA | Haider Ali,Nadav Peleg,&Hayley J. Fowler.(2021).Global scaling of rainfall with dewpoint temperature reveals considerable ocean-land difference.Geophysical Research Letters. |
MLA | Haider Ali,et al."Global scaling of rainfall with dewpoint temperature reveals considerable ocean-land difference".Geophysical Research Letters (2021). |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论