Analysis of characteristics of an extreme precipitation event in Cangshan-Erhai Lake region

Yang Cheng; Fu Zhijia; Peng Juan; Gao Yuezhong; Wang Xiaobin

doi:10.12406/byzh.2024-156

Torrential Rain and Disasters > 2025 > > DOI: 10.12406/byzh.2024-156

Yang Cheng, Fu Zhijia, Peng Juan, et al. xxxx. Analysis of characteristics of an extreme precipitation event in Cangshan-Erhai Lake region [J]. Torrential Rain and Disasters,44(x):xx-xx. DOI: 10.12406/byzh.2024-156

Citation:

PDF (2832 KB)

Analysis of characteristics of an extreme precipitation event in Cangshan-Erhai Lake region

Yang Cheng^{1, 2, 3,},
Fu Zhijia^{1, 2, ,},
Peng Juan^{1, 2},
Gao Yuezhong^{3, 4},
Wang Xiaobin^{1, 2}

1.
671003
2.
671003
3.
650034
4.
671000

More Information

Available Online: April 23, 2025

Graphical Abstract

Abstract

Abstract

In order to deeply understood the characteristics of extreme precipitation in Cangshan-Erhai Lake region, the precipitation observation data from 46 meteorological observation stations, relative humidity and water vapor pressure of the ground near, doppler weather radar, boundary layer wind profile radar in Dali station and ERA5 reanalysis data were used to analyzed the impact system and fine grained characteristics of an extreme precipitation event on September 18, 2020 in this region by statistical and classification methods. The results are as follows. This precipitation process was a significant regional rainfall event (RRE). Under the influence of the convergence shear line , the mesoscale convective system near the shear line directly triggered the heavy precipitation. There were sufficient convective triggering conditions in the boundary layer, and the favorable system configuration enabled multiple small-scale convective systems to be generated during this process, resulting in heavy rainfall above heavy rain in 30.5% of the stations in the region. The maximum accumulated precipitation in 19 h was 123.9 mm, and the maximum rainfall intensity was 33.6 mm·h⁻¹. Dued to the differences in the origin, moving path and intensity of the convective system, the spatio-temporal distribution of the precipitation was uneven and the scale was small. The strong precipitation was mainly concentrated in the east of Cangshan Mountain, while the precipitation in other regions was relatively small. The convective system developed in the northern part of Erhai Lake has fast moving speed, strong echo of radar and relatively small influence range. The strong convection generated on the west side of Erhai Lake in the middle of Cangshan Mountain has a long duration and large influence range. The peak precipitation intensity appeared earlier in the northern part of Erhai Lake than in the southern part of Erhai Lake. The precipitation intensity in the south of Erhai Lake fell slowly after reaching the peak, while the peak precipitation intensity in other regions decreased rapidly after appearing.
- Cangshan-Erhai Lake,
- extreme precipitation,
- rainfall event,
- small-scale convection,
- system evolution

FullText(HTML)

References (24)

References

陈权亮,刘皓,胡淼,等.2024.青藏高原东侧复杂地形区极端降水研究进展[J].暴雨灾害,43(3):255−265. doi: 10.12406/byzh.2023-216

Chen Q L, Liu H, Hu M, et al. 2024. A review of the studies on extreme precipitation in the complex terrain region on the eastern side of the Tibetan plateau [J]. Torrential Rain and Disasters,43(3):255−265 (in Chinese). doi:10.12406/byzh.2023−216

丁仁海,周后福.2010.九华山区下垫面对局地降水的影响分析[J].气象,36(3):47−53. doi: 10.7519/j.issn.1000-0526.2010.3.007

Ding R H, Zhou H F. 2010. Influences of underlying surface on local precipitation in Jiuhua mountains [J]. Meteorological Monthly,36(3):47−53 (in Chinese). doi:10.7519/j.issn.1000−0526.2010.3.007

董保举,付志嘉,李明,等.2012.风廓线雷达资料在暴雨天气过程特征分析中的应用[J].气象科技,40(1):74−78,86. doi: 10.19517/j.1671-6345.2012.01.015

Dong B J,Fu Z J,Li M,et al. 2012. Feature analysis of a rain storm with wind profile radar data [J]. Meteorological Science and Technology,40(1):74−78 (in Chinese). doi:10.19517/j.1671−6345.2012.01.015

董保举,徐安伦,苏锦兰.2023.大理苍山不同海拔高度湿季降水日变化特征分析[J].气象,49(11):1405−1413. doi: 10.7519/j.issn.1000-0526.2023.060402

Dong B J, Xu A L, Su J L. 2023. Diurnal variation of wet season precipitation at different altitudes of Cangshan mountain in Dali [J]. Meteorological Monthly,49(11):1405−1413 (in Chinese). doi:10.7519/j.issn.1000−0526.2023.060402

董保举,张成稳,付志嘉,等.2011.云南大理边界层风垂直变化观测研究[J].干旱气象,29(2):189−194. doi: 10.3969/j.issn.1006-7639.2011.02.010

Dong B J, Zhang C W, Fu Z J, et al. 2011. Study on the vertical change of wind in boundary layer in Dali of Yunnan province [J]. Journal of Arid Meteorology,29(2):189−194 (in Chinese). doi:10.3969/j.issn.1006−7639.2011.02.010

何华,孙绩华.2003.云南冷锋切变大暴雨过程的环流及水汽输送特征[J].气象,29(4):48−52. doi: 10.7519/j.issn.1000-0526.2003.4.011

He H,Sun J H. 2003. Circulation and moisture flux characteristics at middle and lower levels during heavy rains in Yunnan [J]. Meteorological Monthly,29(4):48−52 (in Chinese). doi:10.7519/j.issn.1000−0526.2003.4.011

卢珊,胡泽勇,付春伟,等.2022.黄土高原夏季极端降水及其成因分析[J].高原气象,41(1):241−254. doi: 10.7522/j.issn.1000-0534.2021.00027

Lu S, Hu Z Y, Fu C W, et al. 2022. Characteristics and possible causes for extreme precipitation in summer over the Loess plateau [J]. Plateau Meteorology,41(1):241−254 (in Chinese). doi:10.7522/j.issn.1000−0534.2021.00027

鲁亚斌,李华宏,闵颖,等.2018.一次云南强对流暴雨的中尺度特征分析[J].气象,44(5):645−654. doi: 10.7519/j.issn.1000-0526.2018.05.005

Lu Y B, Li H H, Min Y, et al. 2018. Analysis of mesoscale weather system characteristics of a severe convective rainstorm in Yunnan [J]. Meteorological Monthly,44(5):645−654 (in Chinese). doi:10.7519/j.issn.1000−0526.2018.05.005

沈晓琳,周宁芳,杨舒楠,等.2019.2015年冬季云南两次极端降水事件及环流异常特征分析[J].暴雨灾害,38(4):380−385. doi: 10.3969/i.issn.1004-9045.2019.04.011

Shen X L, Zhou N F, Yang S N, et al. 2019. Analysis of two extreme precipitation events and circulation anomalies in Yunnan province in winter of 2015 [J]. Torrential Rain and Disasters,38(4):380−385 (in Chinese). doi:10.3969/i.issn.1004−9045.2019.04.011

宋薇,邱晓滨,王兆宇,等.2024.一次冰雹过程的多源资料观测特征分析[J].暴雨灾害,43(3):322−331. doi: 10.12406/byzh.2023-032

Song W, Qiu X B, Wang Z Y, et al. 2024. Analysis of the characteristics of a hail event with multi-source data [J]. Torrential Rain and Disasters,43(3):322−331 (in Chinese). doi:10.12406/byzh.2023−032

苏锦兰,李建,杨桂荣,等.2015.横断山系云岭余脉点苍山东西侧小时降水特性对比分析[J].气象,41(1):17−24. doi: 10.7519/j.issn.1000-0526.2015.01.002

Su J L, Li J, Yang G R, et al. 2015. Comparative analysis on hourly precipitation features on the east and west sides of Yunling Diancang mountain in Hengduan mountains [J]. Meteorological Monthly,41(1):17−24 (in Chinese). doi:10.7519/j.issn.1000−0526.2015.01.002

万石云,赵宁坤,段玮.2015.云南省滑坡泥石流与强降水的相关性和多时间尺度特征研究[J].灾害学,30(1):45−50. doi: 10.3969/j.issn.1000-811X.2015.01.010

Wan S Y, Zhao N K, Duan W. 2015. Correlation and multi-timescale characteristics of strong precipitations and landslide debris flows in Yunnan province [J]. Journal of Catastrophology,30(1):45−50 (in Chinese). doi:10.3969/j.issn.1000−811X.2015.01.010

王凌梓,苗峻峰,韩芙蓉.2018.近10年中国地区地形对降水影响研究进展[J].气象科技,46(1):64−75. doi: 10.19517/j.1671-6345.20170081

Wang L Z, Miao J F, Han F R. 2018. Overview of impact of topography on precipitation in China over last 10 years [J]. Meteorological Science and Technology,46(1):64−75 (in Chinese). doi:10.19517/j.1671−6345.20170081

徐安伦,董保举,刘劲松,等.2010.洱海湖滨大气边界层结构及特征分析[J].高原气象,29(3):637−644

Xu A L, Dong B J, Liu J S, et al. 2010. Structure and characteristic of the atmospheric boundary layer in Erhai lakeside region of Dali [J]. Plateau Meteorology,29(3):637−644 (in Chinese)

徐安伦,李育,杨帆,等.2017.连年干旱背景下洱海流域降水的精细化特征[J].高原气象,36(6):1557−1566. doi: 10.7522/i.issn.1000-0534.2017.00014

Xu A L, Li Y, Yang F, et al. 2017. Fine-scale characteristics of rainfall in Erhai lake basin under continuous drought conditions [J]. Plateau Meteorology,36(6):1557−1566 (in Chinese). doi:10.7522/i.issn.1000−0534.2017.00014

许鲁君,刘辉志.2015.云贵高原洱海湖泊效应的数值模拟[J].气象学报,73(4):789−802. doi: 10.11676/qxxb2015.047

Xu L J, Liu H Z. 2015. Numerical simulation of the lake effect of Erhai in the Yunnan-Guizhou plateau area [J]. Acta Meteorologica Sinica,73(4):789−802 (in Chinese). doi: 10.11676/qxxb2015.047

许霖,姚蓉,陈红专,等.2020.2017年湖南一次极端降雨过程特征及成因分析[J].沙漠与绿洲气象,14(1):31−38. doi: 10.12057/j.issn.1002-0799.2020.01.004

Xu L, Yao R, Chen H Z, et al. 2020. Characteristics and causes analysis of extreme rainfall event in 2017 in Hunan province [J]. Desert and Oasis Meteorology,14(1):31−38 (in Chinese). doi:10.12057/j.issn.1002−0799.2020.01.004

阎丽凤,车军辉,周雪松,等.2013.泰山地形对一次局地强降水过程动力作用的数值模拟分析[J].气象,39(11):1393−1401. doi: 10.7519/j.issn.1000-0526.2013.11.002

Yan L F, Che J H, Zhou X S, et al. 2013. Numerical simulation analysis on dynamic effect of Taishan mountain terrain on local severe rainfall [J]. Meteorological Monthly,39(11):1393−1401 (in Chinese). doi:10.7519/j.issn.1000−0526.2013.11.002

杨智,刘劲松,孙绩华.2008.大理近地层山谷盆地湖陆风及湍流特征分析[J].气象与环境学报,24(5):32−37. doi: 10.3969/j.issn.1673-503X.2008.05.008

Yang Z, Liu J S, Sun J H. 2008. Lake-land breeze and turbulence characteristics in the surface layer of valley and basin in Dali, Yunnan province [J]. Journal of Meteorology and Environment,24(5):32−37(in Chinese). doi:10.3969/j.issn.1673−503X.2008.05.008

杨芳园,甄廷忠,邹灵宇,等.2021.昆明市主城区一次局地短时强降水特征研究[J].沙漠与绿洲气象,15(1):28−35. doi: 10.12057/j.issn.1002-0799.2021.01.004

Yang F Y, Zhen T Z, Zou L Y, et al. 2021. A study of the local short-time heavy rain in the main urban area of Kunming [J]. Desert and Oasis Meteorology,15(1):28−35 (in Chinese). doi:10.12057/j.issn.1002−0799.2021.01.004

周泓,杨若文,钟爱华,等.2015.云南省一次切变冷锋型暴雨过程的中尺度对流系统分析[J].气象,41(8):953−963. doi: 10.7519/j.issn.1000-0526.2015.08.004

Zhou H, Yang R W, Zhong A H, et al. 2015. Analysis on mesoscale convective system during a shear and cold front type rainstorm process in Yunnan province [J]. Meteorological Monthly,41(8):953−963 (in Chinese). doi:10.7519/j.issn.1000−0526.2015.08.004

周晓宇,周泓,段玮,等.2023.哀牢山复杂地形对一次夏季强降水影响的模拟[J].气候与环境研究,28(5):533−546. doi: 10.3878/j.issn.1006-9585.2023.23007

Zhou X Y, Zhou H, Duan W, et al. 2023. Simulation of the complex terrain influence on summer heavy precipitation in Ailao mountain [J]. Climatic and Environmental Research,28(5):533−546 (in Chinese). doi:10.3878/j.issn.1006−9585.2023.23007

Yu R C, Chen H M, Sun W. 2015. The definition and characteristics of regional rainfall events demonstrated by warm season precipitation over the Beijing plain [J]. Journal of Hydrometeorology,16(1):396−406. doi:10.1175/JHM−D−14−0086.1

Zhang M K, Li J, Li N N. 2021. Fine-scale characteristics of summer precipitation over Cang mountain [J]. Journal of Applied Meteorology and Climatology,60(9):1280−1300. doi:10.1175JAMC−D−20−0220.1

Cited By

Get Citation

PDF

XML

Article views (8) PDF downloads (1)

Turn off MathJax

Article Contents

Abstract

References

	CAO Shuya, ZOU Lanjun, WANG Yi, MU Ruiqi, ZHOU Zhengming. 2023: Analysis of environmental conditions and characteristics of convective system evolution of a Mei-Yu Front heavy rainstorm in southern Jiangsu. Torrential Rain and Disasters, 42(5): 532-540. DOI: 10.12406/byzh.2023-128
	SUN Xiaolei, WANG Ke, ZUO Tao, LIU Dehao, YI Xiaoyuan, LIN Xiaomeng. 2023: Analysis of supercell and meso-scale convective system causing an extreme thunderstorm gale in Tianjin on 25 June 2020. Torrential Rain and Disasters, 42(3): 312-323. DOI: 10.12406/byzh.2022-093
	HU Jingting, CHEN Lianglü, XIA Yu. 2022: Research on the application of surface elements ensemble forecast products of a convective scale ensemble prediction system. Torrential Rain and Disasters, 41(2): 204-214. DOI: 10.3969/j.issn.1004-9045.2022.02.011
	NIE Yun, ZHOU Jixian, YANG Fan, YANG Qun, DU Xiaoling. 2021: Analysis on mesoscale system evolution and environmental field characteristics of a warm-sector heavy rainfall event in summer in the southeast of Fanjing Mountains. Torrential Rain and Disasters, 40(2): 125-135. DOI: 10.3969/j.issn.1004-9045.2021.02.003
	YU Rong, DU Muyun, GU Yonggang. 2019: Analysis of environmental characteristics affecting the evolution pattern of the frontal short-time heavy rainfall system. Torrential Rain and Disasters, 38(6): 640-648. DOI: 10.3969/j.issn.1004-9045.2019.06.009
	ZHANG Jiaguo, WANG Jue, WU Tao, ZHOU Jinlian, ZHONG Min, WANG Shanshan, HUANG Xiaoyan, LI Shuangjun, HAN Fangrong, WANG Xiaoci. 2018: Weather system types of extreme precipitation in the middle reaches of the Yangtze river. Torrential Rain and Disasters, 37(1): 14-23. DOI: 10.3969/j.issn.1004-9045.2018.01.003
	SU Aifang, ZHANG Ning, YUAN Xiaochao, ZHANG Qingzhen. 2016: Comparative analysis on β-mesoscale convective systems in "7.14" extreme precipitation and "8.02" thunderstorm gale events in Henan. Torrential Rain and Disasters, 35(2): 126-137. DOI: 10.3969/j.issn.1004-9045.2016.02.005
	LIU Ruixiang, DING Zhiying, SUN Lingguang, HUANG Haibo. 2015: Statistical analysis of mesoscale convective systems overYangtze-Huaihe basin in summer. Torrential Rain and Disasters, 34(3): 215.
	WU Hao-min, JIANG Yan-min, MAO Jun-nian. 2010: The Multi-time-scale Analysis of Flood Season Precipitation Evolution in LiShui City. Torrential Rain and Disasters, 29(2): 74-78.
	Lü Mei, ZOU Li. 2010: Advance and Retreat Features of Subtropical High and Evolution of Convective System During Meiyu Period in 2007. Torrential Rain and Disasters, 29(1): 3-8.

Analysis of characteristics of an extreme precipitation event in Cangshan-Erhai Lake region

Abstract

References

Related Articles

Catalog

Analysis of characteristics of an extreme precipitation event in Cangshan-Erhai Lake region

Abstract

References

Related Articles

Catalog

Export File

Citation

Format

Content