Reassessing hourly precipitation–temperature scaling: the diurnal cycle in a warming China
Hourly extreme precipitation is expected to intensify with global warming following a Clausius–Clapeyron (CC) relationship. While extensive research has investigated the relationship between hourly precipitation and temperature, inconsistencies in this relationship across the diurnal cycle affect al...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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IOP Publishing
2025-01-01
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| Series: | Environmental Research Letters |
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| Online Access: | https://doi.org/10.1088/1748-9326/ada3e6 |
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| author | Miao Lei Shanshan Wang Jianping Huang Zhiyang Wang Xiaoping Li |
| author_facet | Miao Lei Shanshan Wang Jianping Huang Zhiyang Wang Xiaoping Li |
| author_sort | Miao Lei |
| collection | DOAJ |
| description | Hourly extreme precipitation is expected to intensify with global warming following a Clausius–Clapeyron (CC) relationship. While extensive research has investigated the relationship between hourly precipitation and temperature, inconsistencies in this relationship across the diurnal cycle affect all-hours scaling. This study uses hourly gauge observations and reanalysis data from mainland China to analyze the scaling and explore its diurnal cycle for the first time. Our results reveal that 88.7% of the stations exhibit super-CC scaling, which is significantly underestimated by reanalysis data. Notably, the scaling shows a pronounced diurnal cycle and exceeds all-hour scaling, indicating that the mix of precipitation from different hours ultimately affects the overall scaling results. Over a 39 year period, changes in extreme precipitation intensity were closely aligned with dew-point temperatures throughout the diurnal cycle in inland regions. The above results provide a valuable insight into the shift of extreme precipitation to morning/night in some regions under climate change. |
| format | Article |
| id | doaj-art-24cb9232256b46069afb8eff71c57d39 |
| institution | Kabale University |
| issn | 1748-9326 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | Environmental Research Letters |
| spelling | doaj-art-24cb9232256b46069afb8eff71c57d392025-01-10T11:53:24ZengIOP PublishingEnvironmental Research Letters1748-93262025-01-0120202400610.1088/1748-9326/ada3e6Reassessing hourly precipitation–temperature scaling: the diurnal cycle in a warming ChinaMiao Lei0https://orcid.org/0000-0003-1520-3399Shanshan Wang1https://orcid.org/0000-0001-6373-8908Jianping Huang2https://orcid.org/0000-0003-2845-797XZhiyang Wang3Xiaoping Li4Key Laboratory for Semi-Arid Climate Change of the Ministry of Education, College of Atmospheric Sciences, Lanzhou University , Lanzhou, People’s Republic of ChinaKey Laboratory for Semi-Arid Climate Change of the Ministry of Education, College of Atmospheric Sciences, Lanzhou University , Lanzhou, People’s Republic of ChinaKey Laboratory for Semi-Arid Climate Change of the Ministry of Education, College of Atmospheric Sciences, Lanzhou University , Lanzhou, People’s Republic of ChinaKey Laboratory for Semi-Arid Climate Change of the Ministry of Education, College of Atmospheric Sciences, Lanzhou University , Lanzhou, People’s Republic of ChinaKey Laboratory for Semi-Arid Climate Change of the Ministry of Education, College of Atmospheric Sciences, Lanzhou University , Lanzhou, People’s Republic of ChinaHourly extreme precipitation is expected to intensify with global warming following a Clausius–Clapeyron (CC) relationship. While extensive research has investigated the relationship between hourly precipitation and temperature, inconsistencies in this relationship across the diurnal cycle affect all-hours scaling. This study uses hourly gauge observations and reanalysis data from mainland China to analyze the scaling and explore its diurnal cycle for the first time. Our results reveal that 88.7% of the stations exhibit super-CC scaling, which is significantly underestimated by reanalysis data. Notably, the scaling shows a pronounced diurnal cycle and exceeds all-hour scaling, indicating that the mix of precipitation from different hours ultimately affects the overall scaling results. Over a 39 year period, changes in extreme precipitation intensity were closely aligned with dew-point temperatures throughout the diurnal cycle in inland regions. The above results provide a valuable insight into the shift of extreme precipitation to morning/night in some regions under climate change.https://doi.org/10.1088/1748-9326/ada3e6Clausius–Clapeyron (CC) relationshipDiurnal variationsInterannual variationHourly precipitation |
| spellingShingle | Miao Lei Shanshan Wang Jianping Huang Zhiyang Wang Xiaoping Li Reassessing hourly precipitation–temperature scaling: the diurnal cycle in a warming China Environmental Research Letters Clausius–Clapeyron (CC) relationship Diurnal variations Interannual variation Hourly precipitation |
| title | Reassessing hourly precipitation–temperature scaling: the diurnal cycle in a warming China |
| title_full | Reassessing hourly precipitation–temperature scaling: the diurnal cycle in a warming China |
| title_fullStr | Reassessing hourly precipitation–temperature scaling: the diurnal cycle in a warming China |
| title_full_unstemmed | Reassessing hourly precipitation–temperature scaling: the diurnal cycle in a warming China |
| title_short | Reassessing hourly precipitation–temperature scaling: the diurnal cycle in a warming China |
| title_sort | reassessing hourly precipitation temperature scaling the diurnal cycle in a warming china |
| topic | Clausius–Clapeyron (CC) relationship Diurnal variations Interannual variation Hourly precipitation |
| url | https://doi.org/10.1088/1748-9326/ada3e6 |
| work_keys_str_mv | AT miaolei reassessinghourlyprecipitationtemperaturescalingthediurnalcycleinawarmingchina AT shanshanwang reassessinghourlyprecipitationtemperaturescalingthediurnalcycleinawarmingchina AT jianpinghuang reassessinghourlyprecipitationtemperaturescalingthediurnalcycleinawarmingchina AT zhiyangwang reassessinghourlyprecipitationtemperaturescalingthediurnalcycleinawarmingchina AT xiaopingli reassessinghourlyprecipitationtemperaturescalingthediurnalcycleinawarmingchina |