Climatic characteristics of hourly extreme precipitation during the warm season in Chongqing

The study analyzed hourly extreme precipitation events in Chongqing and its six sub-regions from 2011 to 2021 during the warm season. Results showed uneven distribution of the 99.7th percentile hourly extreme precipitation threshold, with lower thresholds along the Yangtze River valley and higher th...

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Main Authors: Yi Liu, Zhong Wang, Chengzhi Deng, Danhua Zhai, Yu Han, Yue Pang, Yingying Zhou, Fang Luo
Format: Article
Language:English
Published: Taylor & Francis Group 2024-12-01
Series:Geomatics, Natural Hazards & Risk
Subjects:
Online Access:https://www.tandfonline.com/doi/10.1080/19475705.2023.2278893
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author Yi Liu
Zhong Wang
Chengzhi Deng
Danhua Zhai
Yu Han
Yue Pang
Yingying Zhou
Fang Luo
author_facet Yi Liu
Zhong Wang
Chengzhi Deng
Danhua Zhai
Yu Han
Yue Pang
Yingying Zhou
Fang Luo
author_sort Yi Liu
collection DOAJ
description The study analyzed hourly extreme precipitation events in Chongqing and its six sub-regions from 2011 to 2021 during the warm season. Results showed uneven distribution of the 99.7th percentile hourly extreme precipitation threshold, with lower thresholds along the Yangtze River valley and higher thresholds in the Daba Mountains and Wuling Mountains. Both hourly extreme precipitation amount (HEPA) and intensity (HEPI) exhibited higher values in surrounding areas and lower values in the center, with the western, northeast, and southeastern regions experiencing the highest values. Spatial distribution of hourly extreme precipitation frequency varied, with higher frequencies in the northwestern and southern parts of Chongqing. Interannually, hourly extreme precipitation amount slightly increased, while intensity fluctuated. Monthly peak values for amount, frequency, and intensity occurred in July or August, and on a daily scale, the periods from 03:00 to 07:00 and 17:00 to 21: 00 exhibited higher values for amount and frequency, while the period from 11 :00 to 16:00 showed lower values. In summary, the study provided insights into the spatial and temporal patterns of hourly extreme precipitation events in Chongqing and its sub-regions during the warm season, highlighting variations in thresholds, distribution, and trends over the studied period.
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institution Kabale University
issn 1947-5705
1947-5713
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publishDate 2024-12-01
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record_format Article
series Geomatics, Natural Hazards & Risk
spelling doaj-art-a404724c11d1468c93c02d230d82889d2024-12-12T18:11:17ZengTaylor & Francis GroupGeomatics, Natural Hazards & Risk1947-57051947-57132024-12-0115110.1080/19475705.2023.2278893Climatic characteristics of hourly extreme precipitation during the warm season in ChongqingYi Liu0Zhong Wang1Chengzhi Deng2Danhua Zhai3Yu Han4Yue Pang5Yingying Zhou6Fang Luo7CMA Key Open Laboratory of Transforming Climate Resources to Economy, Chongqing, ChinaCMA Key Open Laboratory of Transforming Climate Resources to Economy, Chongqing, ChinaCMA Key Open Laboratory of Transforming Climate Resources to Economy, Chongqing, ChinaCMA Key Open Laboratory of Transforming Climate Resources to Economy, Chongqing, ChinaCMA Key Open Laboratory of Transforming Climate Resources to Economy, Chongqing, ChinaCMA Key Open Laboratory of Transforming Climate Resources to Economy, Chongqing, ChinaCMA Key Open Laboratory of Transforming Climate Resources to Economy, Chongqing, ChinaChongqing Meteorological Bureau, Chongqing, ChinaThe study analyzed hourly extreme precipitation events in Chongqing and its six sub-regions from 2011 to 2021 during the warm season. Results showed uneven distribution of the 99.7th percentile hourly extreme precipitation threshold, with lower thresholds along the Yangtze River valley and higher thresholds in the Daba Mountains and Wuling Mountains. Both hourly extreme precipitation amount (HEPA) and intensity (HEPI) exhibited higher values in surrounding areas and lower values in the center, with the western, northeast, and southeastern regions experiencing the highest values. Spatial distribution of hourly extreme precipitation frequency varied, with higher frequencies in the northwestern and southern parts of Chongqing. Interannually, hourly extreme precipitation amount slightly increased, while intensity fluctuated. Monthly peak values for amount, frequency, and intensity occurred in July or August, and on a daily scale, the periods from 03:00 to 07:00 and 17:00 to 21: 00 exhibited higher values for amount and frequency, while the period from 11 :00 to 16:00 showed lower values. In summary, the study provided insights into the spatial and temporal patterns of hourly extreme precipitation events in Chongqing and its sub-regions during the warm season, highlighting variations in thresholds, distribution, and trends over the studied period.https://www.tandfonline.com/doi/10.1080/19475705.2023.2278893Hourly extreme precipitationthresholddiurnal variationspatio-temporal distribution
spellingShingle Yi Liu
Zhong Wang
Chengzhi Deng
Danhua Zhai
Yu Han
Yue Pang
Yingying Zhou
Fang Luo
Climatic characteristics of hourly extreme precipitation during the warm season in Chongqing
Geomatics, Natural Hazards & Risk
Hourly extreme precipitation
threshold
diurnal variation
spatio-temporal distribution
title Climatic characteristics of hourly extreme precipitation during the warm season in Chongqing
title_full Climatic characteristics of hourly extreme precipitation during the warm season in Chongqing
title_fullStr Climatic characteristics of hourly extreme precipitation during the warm season in Chongqing
title_full_unstemmed Climatic characteristics of hourly extreme precipitation during the warm season in Chongqing
title_short Climatic characteristics of hourly extreme precipitation during the warm season in Chongqing
title_sort climatic characteristics of hourly extreme precipitation during the warm season in chongqing
topic Hourly extreme precipitation
threshold
diurnal variation
spatio-temporal distribution
url https://www.tandfonline.com/doi/10.1080/19475705.2023.2278893
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