Understanding extreme precipitation scaling with temperature: insights from multi-spatiotemporal analysis in South Korea
With global warming, the intensification of extreme precipitation events is anticipated to follow an exponential growth pattern aligned with the Clausius–Clapeyron (CC) scaling rate (approximately 7% per degree Celsius). However, the regional-scale response of extreme precipitation shows significant...
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| Format: | Article |
| Language: | English |
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IOP Publishing
2023-01-01
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| Series: | Environmental Research Letters |
| Subjects: | |
| Online Access: | https://doi.org/10.1088/1748-9326/ad0afa |
| _version_ | 1797614704082812928 |
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| author | Suhyun Yoo Kuk-Hyun Ahn |
| author_facet | Suhyun Yoo Kuk-Hyun Ahn |
| author_sort | Suhyun Yoo |
| collection | DOAJ |
| description | With global warming, the intensification of extreme precipitation events is anticipated to follow an exponential growth pattern aligned with the Clausius–Clapeyron (CC) scaling rate (approximately 7% per degree Celsius). However, the regional-scale response of extreme precipitation shows significant variability, deviating from the expected CC rate. This deviation is likely caused by diverse weather patterns and local fluctuations in thermodynamic influences, resulting in differences across seasons and within the region of interest. In this study, we examine the spatial distribution of scaling relationships between extreme precipitation and temperature in South Korea, considering daily and sub-daily scales, both annually and seasonally. For a thorough analysis, we utilize multiple precipitation accumulation periods, temperatures, and different conditional quantiles. Our results reveal that, at the annual scale, most scaling patterns exhibit a peak-like structure, with significant variations in breakpoints observed across temperature variables and regions. However, the southern area presents a notable exception with a positive scaling pattern, particularly with the dew point temperature. At the seasonal scale, we observe more variability, with notable shifts occurring during the wet season across different temperatures and regions. Lastly, we explore the long-term historical changes in the peak value in extreme precipitation and find significant increases at high quantiles in the southern area of South Korea. It informs that the observed peak like pattern does not impose a potential upper limit for extreme precipitation. Overall, our findings emphasize the need for cautious interpretation of precipitation scaling within specific spatiotemporal contexts, which could provide a solid basis for better understanding future extreme precipitation events in a changing climate. |
| first_indexed | 2024-03-11T07:15:10Z |
| format | Article |
| id | doaj.art-0482d825d08e488a9e16475d1253804d |
| institution | Directory Open Access Journal |
| issn | 1748-9326 |
| language | English |
| last_indexed | 2024-03-11T07:15:10Z |
| publishDate | 2023-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | Environmental Research Letters |
| spelling | doaj.art-0482d825d08e488a9e16475d1253804d2023-11-17T08:16:35ZengIOP PublishingEnvironmental Research Letters1748-93262023-01-01181212403210.1088/1748-9326/ad0afaUnderstanding extreme precipitation scaling with temperature: insights from multi-spatiotemporal analysis in South KoreaSuhyun Yoo0Kuk-Hyun Ahn1https://orcid.org/0000-0001-8142-0813Graduate Research Assistant, Department of Civil and Environmental Engineering, Kongju National University , Cheon-an, Republic of KoreaAssociate Professor, Department of Civil and Environmental Engineering, Kongju National University , Cheon-an, Republic of KoreaWith global warming, the intensification of extreme precipitation events is anticipated to follow an exponential growth pattern aligned with the Clausius–Clapeyron (CC) scaling rate (approximately 7% per degree Celsius). However, the regional-scale response of extreme precipitation shows significant variability, deviating from the expected CC rate. This deviation is likely caused by diverse weather patterns and local fluctuations in thermodynamic influences, resulting in differences across seasons and within the region of interest. In this study, we examine the spatial distribution of scaling relationships between extreme precipitation and temperature in South Korea, considering daily and sub-daily scales, both annually and seasonally. For a thorough analysis, we utilize multiple precipitation accumulation periods, temperatures, and different conditional quantiles. Our results reveal that, at the annual scale, most scaling patterns exhibit a peak-like structure, with significant variations in breakpoints observed across temperature variables and regions. However, the southern area presents a notable exception with a positive scaling pattern, particularly with the dew point temperature. At the seasonal scale, we observe more variability, with notable shifts occurring during the wet season across different temperatures and regions. Lastly, we explore the long-term historical changes in the peak value in extreme precipitation and find significant increases at high quantiles in the southern area of South Korea. It informs that the observed peak like pattern does not impose a potential upper limit for extreme precipitation. Overall, our findings emphasize the need for cautious interpretation of precipitation scaling within specific spatiotemporal contexts, which could provide a solid basis for better understanding future extreme precipitation events in a changing climate.https://doi.org/10.1088/1748-9326/ad0afaextreme precipitationClausius–Clapeyron scaling rateprecipitation scalingSouth Korea |
| spellingShingle | Suhyun Yoo Kuk-Hyun Ahn Understanding extreme precipitation scaling with temperature: insights from multi-spatiotemporal analysis in South Korea Environmental Research Letters extreme precipitation Clausius–Clapeyron scaling rate precipitation scaling South Korea |
| title | Understanding extreme precipitation scaling with temperature: insights from multi-spatiotemporal analysis in South Korea |
| title_full | Understanding extreme precipitation scaling with temperature: insights from multi-spatiotemporal analysis in South Korea |
| title_fullStr | Understanding extreme precipitation scaling with temperature: insights from multi-spatiotemporal analysis in South Korea |
| title_full_unstemmed | Understanding extreme precipitation scaling with temperature: insights from multi-spatiotemporal analysis in South Korea |
| title_short | Understanding extreme precipitation scaling with temperature: insights from multi-spatiotemporal analysis in South Korea |
| title_sort | understanding extreme precipitation scaling with temperature insights from multi spatiotemporal analysis in south korea |
| topic | extreme precipitation Clausius–Clapeyron scaling rate precipitation scaling South Korea |
| url | https://doi.org/10.1088/1748-9326/ad0afa |
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