Chengqing Chen, Shanshan Wang, Zhiyang Wang, Xiaoping Li
{"title":"亚日降水对中国各气候带极端温度的差异影响","authors":"Chengqing Chen, Shanshan Wang, Zhiyang Wang, Xiaoping Li","doi":"10.1029/2024GL114088","DOIUrl":null,"url":null,"abstract":"<p>Precipitation events can effect temperature and modulate its response to climate change, yet the impact of sub-daily precipitation on temperature extremes in China has been understudied. This study therefore focuses on the impact of precipitation on daily maximum temperature (<i>T</i><sub>max</sub>) and daily minimum temperature (<i>T</i><sub>min</sub>) across China's climatic regions from 1952 to 2019. Results show that precipitation-induced cooling effects on <i>T</i><sub>max</sub> through cloud effects and evaporative cooling, particularly in arid and semi-humid regions. In arid regions, precipitation enhances <i>T</i><sub>min</sub> through increased downward longwave radiation and changes in soil thermodynamics, while in humid regions, rainfall-induced evaporative cooling suppresses <i>T</i><sub>min</sub>. Notably, the <i>T</i><sub>max</sub> warming trend during rainy weathers lacks statistical significance in humid regions, and <i>T</i><sub>min</sub> consistently warms more during dry conditions. These findings reveal a saturation effect of precipitation on temperature and provide a framework for understanding precipitation-temperature interactions, with implications for refining climate model and assessing global warming.</p>","PeriodicalId":12523,"journal":{"name":"Geophysical Research Letters","volume":"52 9","pages":""},"PeriodicalIF":4.6000,"publicationDate":"2025-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1029/2024GL114088","citationCount":"0","resultStr":"{\"title\":\"Differential Impacts of Sub-Daily Precipitation on Temperature Extremes Across China's Climatic Zones\",\"authors\":\"Chengqing Chen, Shanshan Wang, Zhiyang Wang, Xiaoping Li\",\"doi\":\"10.1029/2024GL114088\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>Precipitation events can effect temperature and modulate its response to climate change, yet the impact of sub-daily precipitation on temperature extremes in China has been understudied. This study therefore focuses on the impact of precipitation on daily maximum temperature (<i>T</i><sub>max</sub>) and daily minimum temperature (<i>T</i><sub>min</sub>) across China's climatic regions from 1952 to 2019. Results show that precipitation-induced cooling effects on <i>T</i><sub>max</sub> through cloud effects and evaporative cooling, particularly in arid and semi-humid regions. In arid regions, precipitation enhances <i>T</i><sub>min</sub> through increased downward longwave radiation and changes in soil thermodynamics, while in humid regions, rainfall-induced evaporative cooling suppresses <i>T</i><sub>min</sub>. Notably, the <i>T</i><sub>max</sub> warming trend during rainy weathers lacks statistical significance in humid regions, and <i>T</i><sub>min</sub> consistently warms more during dry conditions. These findings reveal a saturation effect of precipitation on temperature and provide a framework for understanding precipitation-temperature interactions, with implications for refining climate model and assessing global warming.</p>\",\"PeriodicalId\":12523,\"journal\":{\"name\":\"Geophysical Research Letters\",\"volume\":\"52 9\",\"pages\":\"\"},\"PeriodicalIF\":4.6000,\"publicationDate\":\"2025-05-07\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://onlinelibrary.wiley.com/doi/epdf/10.1029/2024GL114088\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Geophysical Research Letters\",\"FirstCategoryId\":\"89\",\"ListUrlMain\":\"https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2024GL114088\",\"RegionNum\":1,\"RegionCategory\":\"地球科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"GEOSCIENCES, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Geophysical Research Letters","FirstCategoryId":"89","ListUrlMain":"https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2024GL114088","RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"GEOSCIENCES, MULTIDISCIPLINARY","Score":null,"Total":0}
Differential Impacts of Sub-Daily Precipitation on Temperature Extremes Across China's Climatic Zones
Precipitation events can effect temperature and modulate its response to climate change, yet the impact of sub-daily precipitation on temperature extremes in China has been understudied. This study therefore focuses on the impact of precipitation on daily maximum temperature (Tmax) and daily minimum temperature (Tmin) across China's climatic regions from 1952 to 2019. Results show that precipitation-induced cooling effects on Tmax through cloud effects and evaporative cooling, particularly in arid and semi-humid regions. In arid regions, precipitation enhances Tmin through increased downward longwave radiation and changes in soil thermodynamics, while in humid regions, rainfall-induced evaporative cooling suppresses Tmin. Notably, the Tmax warming trend during rainy weathers lacks statistical significance in humid regions, and Tmin consistently warms more during dry conditions. These findings reveal a saturation effect of precipitation on temperature and provide a framework for understanding precipitation-temperature interactions, with implications for refining climate model and assessing global warming.
期刊介绍:
Geophysical Research Letters (GRL) publishes high-impact, innovative, and timely research on major scientific advances in all the major geoscience disciplines. Papers are communications-length articles and should have broad and immediate implications in their discipline or across the geosciences. GRLmaintains the fastest turn-around of all high-impact publications in the geosciences and works closely with authors to ensure broad visibility of top papers.