Changes in Hourly Extreme Precipitation Over Eastern China From 1970 to 2019 Dominated by Synoptic‐Scale Precipitation

Ng, Chan-Pang; Zhang, Qinghong; Li, Wenhong

doi:10.1029/2020gl090620

Cited by 18 publications

(19 citation statements)

References 45 publications

(73 reference statements)

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“…The correlation coefficient between them was 0.76 (P < 0.05). The spatial pattern of HEP frequency was similar to that found by Ng et al (2021). We found that 63.2% of HEP were associated with TD during the warm season in 1980-2011, as recorded by an average of 653 stations (Fig.…”

Section: A Characteristics Of Hep and Tdsupporting

confidence: 86%

“…The station data were subjected to quality control, and two datasets were separately screened for missing values and spatiotemporal inhomogeneity, with reference to Ng et al (2021). In this study, observatories were not included if the site moved by more than 20 km or showed a change in elevation of more than 50 m during the study period.…”

Section: A Precipitation and Thunder Recordsmentioning

confidence: 99%

“…Many studies have addressed the number and intensity of extreme precipitation events at different temporal scales according to changes in temperature (Miao et al, 2016;Yu and Li, 2012) and large-scale circulation (Y. Ding and Chan, 2005;Ng et al, 2021;Yuqing Wang and Zhou, 2005). Most continental extreme precipitation events are caused by severe convection accompanied by thunderstorms (Fujibe, 1988;Schumacher and Johnson, 2006;Xu, 2020;Ye et al, 2017), which are mesoscale weather phenomena.…”

Section: Introductionmentioning

confidence: 99%

“…However, in southeastern China, thunderstorm days showed a significant upward trend of more than five days per decade in the warm season from 1990 to 2012 (Yang and Li, 2014). The frequency of HEP events rose in the lower reach of the Yangtze River (LYR), and across southern China (SC) and northeastern China (NEC), from 1970 to 2019 (Ng et al, 2021). Therefore, trends in HEP and thunderstorms have not shown a consistent pattern, despite the strong contribution of thunderstorms to HEP.…”

Section: Introductionmentioning

confidence: 99%

“…Large-scale dynamic circulations that affect eastern China include the East Asia summer monsoon (EASM), Indian summer monsoon, and western North Pacific summer monsoon (Yuqing Wang and Zhou, 2005;You et al, 2011). The duration of the monsoon stages affects the frequency of extreme precipitation in China (Lau and Yang, 1997;Ng et al, 2021;Z. Zhang et al, 2004), while weakening of the EASM is considered to be strongly correlated with a decrease in the occurrence of thunderstorms (Q. .…”

Section: Introductionmentioning

confidence: 99%

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Contribution of Thunderstorms to Changes in Hourly Extreme Precipitation over China from 1980 to 2011

Zhang

et al. 2022

Journal of Climate

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In many countries, thunderstorms are the main contributor to hourly extreme precipitation (HEP). Prior studies have shown that the number of thunderstorms decreased steadily in whole country of China, however, HEP increased significantly in several areas over the past half-century. The role of thunderstorms in changes in HEP occurrence remains largely unknown in China. In this study, for the first time, we used continuous 32-year records of hourly precipitation and thunder, and the fifth-generation European Centre for Medium-Range Weather Forecasts atmospheric reanalysis, to analyze changes in thunderstorms under various vertical wind shear (VWS) environments, and their contribution to HEP occurrence. The number of HEP events associated with thunderstorms (TD-HEP) increased significantly in southern China (SC) but decreased significantly in northeastern China (NEC) and east of the Tibetan Plateau (ETP). Weak VWS thunderstorms accounted for 69.1% of TD-HEP in SC. Changes in the most unstable convective available potential energy and precipitable water (PW) in SC favored an increase in weak-VWS thunderstorms, which resulted in a 2.35 h warm-season−1 increase in overall “station-mean” TD-HEP events from 1980 to 2011. As the major contributor to HEP in NEC, moderate-VWS thunderstorms decreased by 0.37 h warm-season−1 due mainly to a reduction in PW, leading to a negative trend in TD-HEP events. Similarly, the decreasing TD-HEP occurrence on the ETP was due to a decrease of 1.12 h warm-season−1 of moderate-VWS thunderstorms. Studying the VWS environments of thunderstorms, and changes therein under a warming climate, can improve understanding of the changes in HEP in China.

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Section: A Characteristics Of Hep and Tdsupporting

confidence: 86%

Section: A Precipitation and Thunder Recordsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Contribution of Thunderstorms to Changes in Hourly Extreme Precipitation over China from 1980 to 2011

Zhang

et al. 2022

Journal of Climate

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The responses of three dominant species to increased rainfall under different grazing systems in a desert steppe

Song

Liu

Wang

et al. 2022

Hydrological Processes

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Compared with drought stress, our knowledge about the potential precipitation increase in desert steppes and its ecological effects is still limited. In order to improve our understanding of the responses of desert steppe plants to climate change and human activities, we performed a 3-year-long controlled water addition experiment in grasslands with different grazing systems. The results showed that increased water changed the plant height/above-ground biomass/leaf-tissue thickness of Stipa breviflora Griseb., Cleistogenes squarrosa (Trin.

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Variations and comparisons in hourly and daily precipitation extremes over eastern China in recent warming periods

Qi,

Huang,

Chen

et al. 2024

Intl Journal of Climatology

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Under global warming, a notable intensification of precipitation extremes has posed significant threats to both natural ecosystems and human societies. However, there is still a lack of systematic studies on the variability of hourly precipitation extremes and a comparison with daily precipitation extremes. This study introduces a set of indices for hourly and daily precipitation extremes to systematically examine the changes across eastern China during the summers from 1980 to 2020. The results show that southern China is the sensitive regions with a notable large value of climatology in frequency and intensity for both of hourly and daily precipitation extremes. For the trends, the frequency of hourly precipitation extremes shows a rising trend in southern China, and intensity increased in northern China. Conversely, for daily precipitation extremes, the enhanced intensity and frequency are observed only in southeastern China. Additionally, the eastern coastal area experiences prolonged hourly rainfall with increasing persistence, while the region with an increased duration of daily precipitation is situated further south. Comparing the periods 1980–1999 and 2000–2020, precipitation extremes shift toward more intense and more frequent, with more pronounced variations at the hourly scale. Notably, northeastern China tend to be more intense and shorter‐lived hourly precipitation extremes after 1999, while south China experiences more frequent and longer‐lasting extremes. These changes are partly attributed to the increased unstable conditions, enhanced convective available potential energy and weakened convective inhibition.

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Changes in Hourly Extreme Precipitation Over Eastern China From 1970 to 2019 Dominated by Synoptic‐Scale Precipitation

Cited by 18 publications

References 45 publications

Contribution of Thunderstorms to Changes in Hourly Extreme Precipitation over China from 1980 to 2011

Contribution of Thunderstorms to Changes in Hourly Extreme Precipitation over China from 1980 to 2011

The responses of three dominant species to increased rainfall under different grazing systems in a desert steppe

Variations and comparisons in hourly and daily precipitation extremes over eastern China in recent warming periods

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