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DOI | 10.1175/JCLI-D-17-0075.1 |
Role of Convective Precipitation in the Relationship between Subdaily Extreme Precipitation and Temperature | |
Park, In-Hong; Min, Seung-Ki | |
2017-12-01 | |
发表期刊 | JOURNAL OF CLIMATE
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ISSN | 0894-8755 |
EISSN | 1520-0442 |
出版年 | 2017 |
卷号 | 30期号:23 |
文章类型 | Article |
语种 | 英语 |
国家 | South Korea |
英文摘要 | On a subdaily time scale, the intensities of extreme precipitation are observed to increase with temperature at a rate exceeding water vapor constraints determined by the Clausius-Clapeyron (C-C) relationship. This so-called super C-C scaling has been suggested to occur as a result of 1) the statistical effect that involves the transition of precipitation types from stratiform to convective events and 2) the physical effect by which the convective process itself can overcome the thermodynamic limitation. This study examines these two mechanisms for the super C-C relationship using in situ observations in South Korea for a recent 35-yr period, focusing on the role of convective rainfall. Scaling results show that hourly extreme precipitation undergoes a transition from a C-C rate to a super C-C rate at around 20 degrees C, supporting the statistical effect. The transition temperature observed in South Korea is, however, much higher than in European regions (12 degrees C), which seems to be due to the climatologically lower frequency of convective events in South Korea than in Europe. Nevertheless, the threshold fraction of convective precipitation when the scaling transition starts to occur is found to very similar between two regions, around 0.2, indicating the important role of convective events in shaping the scaling. On the other hand, convective extreme precipitation alone exhibits a super C-C scaling, suggesting that the physical effect is also at work in South Korea. Also, the scaling shows a robust peaklike shape with maximum precipitation intensity near 24 degrees C, which is closely linked with moisture limitation at high temperature, supporting the previous findings. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000416489400012 |
WOS关键词 | FUTURE CHANGES ; SOUTH-KOREA ; CLIMATE ; RAINFALL ; TRENDS ; INCREASE ; SCALE |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | Meteorology & Atmospheric Sciences |
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/20731 |
专题 | 气候变化 |
作者单位 | Pohang Univ Sci & Technol, Div Environm Sci & Engn, Pohang, Gyeongbuk, South Korea |
推荐引用方式 GB/T 7714 | Park, In-Hong,Min, Seung-Ki. Role of Convective Precipitation in the Relationship between Subdaily Extreme Precipitation and Temperature[J]. JOURNAL OF CLIMATE,2017,30(23). |
APA | Park, In-Hong,&Min, Seung-Ki.(2017).Role of Convective Precipitation in the Relationship between Subdaily Extreme Precipitation and Temperature.JOURNAL OF CLIMATE,30(23). |
MLA | Park, In-Hong,et al."Role of Convective Precipitation in the Relationship between Subdaily Extreme Precipitation and Temperature".JOURNAL OF CLIMATE 30.23(2017). |
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