The Basic Observational Analysis of "7.20" Extreme Rainstorm in Zhengzhou
Affected by the easterly jet around the Huang-Huai vortex, extreme rainstorm occurred in Zhengzhou from 08:00 BT 18 to 08:00 BT 22 July 2021, and caused serious landslides, mudslides, urban waterlogging and casualties. Based on observations from sounding, automatic weather stations and radar composi...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | zho |
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Editorial Office of Torrential Rain and Disasters
2021-10-01
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| Series: | 暴雨灾害 |
| Subjects: | |
| Online Access: | http://www.byzh.org.cn/cn/article/doi/10.3969/j.issn.1004-9045.2021.05.001 |
| _version_ | 1827907534322663424 |
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| author | Aifang SU Xiaona LÜ Liman CUI Zhou LI Le XI Han LI |
| author_facet | Aifang SU Xiaona LÜ Liman CUI Zhou LI Le XI Han LI |
| author_sort | Aifang SU |
| collection | DOAJ |
| description | Affected by the easterly jet around the Huang-Huai vortex, extreme rainstorm occurred in Zhengzhou from 08:00 BT 18 to 08:00 BT 22 July 2021, and caused serious landslides, mudslides, urban waterlogging and casualties. Based on observations from sounding, automatic weather stations and radar composite products, the preliminary analysis of this event was made. The results indicate that the extreme rainstorm has the characteristics of long duration of heavy rainfall, large accumulated rainfall, outstanding extremes, and strong short-term rainfall. The reasons for the extreme heavy rain are complicated. However, based on the preliminary analysis results, the basic causes are stable atmospheric circulation, sufficient water vapor and energy, terrain effect obviously and the convective systems that continuously accumulated, merged and stagnated in Zhengzhou. This study focuses on the analysis of the basic observational phenomena of this extreme rainstorm, sorts out the original data for the subsequent research, and lays the foundation for further in-depth study on the mechanism and predictability of this rare extreme rainstorm. |
| first_indexed | 2024-03-13T01:09:35Z |
| format | Article |
| id | doaj.art-408cbb77329d4da1af6ad2c03dc97951 |
| institution | Directory Open Access Journal |
| issn | 2097-2164 |
| language | zho |
| last_indexed | 2024-03-13T01:09:35Z |
| publishDate | 2021-10-01 |
| publisher | Editorial Office of Torrential Rain and Disasters |
| record_format | Article |
| series | 暴雨灾害 |
| spelling | doaj.art-408cbb77329d4da1af6ad2c03dc979512023-07-06T04:30:51ZzhoEditorial Office of Torrential Rain and Disasters暴雨灾害2097-21642021-10-0140544545410.3969/j.issn.1004-9045.2021.05.0012766The Basic Observational Analysis of "7.20" Extreme Rainstorm in ZhengzhouAifang SU0Xiaona LÜ1Liman CUI2Zhou LI3Le XI4Han LI5Henan Key Laboratory of Agrometeorological Support and Applied Technique, CMA, Zhengzhou 450003Henan Key Laboratory of Agrometeorological Support and Applied Technique, CMA, Zhengzhou 450003Henan Key Laboratory of Agrometeorological Support and Applied Technique, CMA, Zhengzhou 450003Henan Key Laboratory of Agrometeorological Support and Applied Technique, CMA, Zhengzhou 450003Henan Key Laboratory of Agrometeorological Support and Applied Technique, CMA, Zhengzhou 450003Henan Key Laboratory of Agrometeorological Support and Applied Technique, CMA, Zhengzhou 450003Affected by the easterly jet around the Huang-Huai vortex, extreme rainstorm occurred in Zhengzhou from 08:00 BT 18 to 08:00 BT 22 July 2021, and caused serious landslides, mudslides, urban waterlogging and casualties. Based on observations from sounding, automatic weather stations and radar composite products, the preliminary analysis of this event was made. The results indicate that the extreme rainstorm has the characteristics of long duration of heavy rainfall, large accumulated rainfall, outstanding extremes, and strong short-term rainfall. The reasons for the extreme heavy rain are complicated. However, based on the preliminary analysis results, the basic causes are stable atmospheric circulation, sufficient water vapor and energy, terrain effect obviously and the convective systems that continuously accumulated, merged and stagnated in Zhengzhou. This study focuses on the analysis of the basic observational phenomena of this extreme rainstorm, sorts out the original data for the subsequent research, and lays the foundation for further in-depth study on the mechanism and predictability of this rare extreme rainstorm.http://www.byzh.org.cn/cn/article/doi/10.3969/j.issn.1004-9045.2021.05.001extreme rainstorm in zhengzhoulow vortexlifting condensation levelconvective systemobservational analysis |
| spellingShingle | Aifang SU Xiaona LÜ Liman CUI Zhou LI Le XI Han LI The Basic Observational Analysis of "7.20" Extreme Rainstorm in Zhengzhou 暴雨灾害 extreme rainstorm in zhengzhou low vortex lifting condensation level convective system observational analysis |
| title | The Basic Observational Analysis of "7.20" Extreme Rainstorm in Zhengzhou |
| title_full | The Basic Observational Analysis of "7.20" Extreme Rainstorm in Zhengzhou |
| title_fullStr | The Basic Observational Analysis of "7.20" Extreme Rainstorm in Zhengzhou |
| title_full_unstemmed | The Basic Observational Analysis of "7.20" Extreme Rainstorm in Zhengzhou |
| title_short | The Basic Observational Analysis of "7.20" Extreme Rainstorm in Zhengzhou |
| title_sort | basic observational analysis of 7 20 extreme rainstorm in zhengzhou |
| topic | extreme rainstorm in zhengzhou low vortex lifting condensation level convective system observational analysis |
| url | http://www.byzh.org.cn/cn/article/doi/10.3969/j.issn.1004-9045.2021.05.001 |
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