Encounter Risk Analysis of Rainstorm and Tide Base on Different Sampling Method
Waterlogging disaster in tide-affected area usually occurs under the influence of rainstorm and tide level.In the process of risk analysis of rainstorm and tide level,different sample methods will affect the risk probability results.Taking Zhong-Zhu union catchment as an example,based on annual maxi...
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| Format: | Article |
| Language: | zho |
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Editorial Office of Pearl River
2024-01-01
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| Series: | Renmin Zhujiang |
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| Online Access: | http://www.renminzhujiang.cn/thesisDetails#10.3969/j.issn.1001-9235.2024.02.014 |
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| author | WANG Shangwei LIU Zengmei |
| author_facet | WANG Shangwei LIU Zengmei |
| author_sort | WANG Shangwei |
| collection | DOAJ |
| description | Waterlogging disaster in tide-affected area usually occurs under the influence of rainstorm and tide level.In the process of risk analysis of rainstorm and tide level,different sample methods will affect the risk probability results.Taking Zhong-Zhu union catchment as an example,based on annual maximum series sampling method and peak over threshold sampling method combined with Copula function,the risk analysis results indicate that:①Sample data obtained based on peak over threshold sampling method has a larger sample size,which contains more rainstorm events than sample data obtained based on annual maximum series sampling method,and these rainstorm events tend to encounter high tide;②On the basis of containing more effective sample information,the frequency analysis results obtained by peak over threshold sampling method are more accurate and with much more security from the perspective of waterlogged drainage;③The joint distribution of rainstorm and tide based on peak over threshold sampling method showed a better fitting degree,and the probability of encountering unexpected events is larger as a result of annual maximal series sampling method omitted some effective sample information. |
| format | Article |
| id | doaj-art-268e6ebafd9740ab950d501ff4ebe7af |
| institution | Kabale University |
| issn | 1001-9235 |
| language | zho |
| publishDate | 2024-01-01 |
| publisher | Editorial Office of Pearl River |
| record_format | Article |
| series | Renmin Zhujiang |
| spelling | doaj-art-268e6ebafd9740ab950d501ff4ebe7af2025-01-15T03:00:24ZzhoEditorial Office of Pearl RiverRenmin Zhujiang1001-92352024-01-014550141927Encounter Risk Analysis of Rainstorm and Tide Base on Different Sampling MethodWANG ShangweiLIU ZengmeiWaterlogging disaster in tide-affected area usually occurs under the influence of rainstorm and tide level.In the process of risk analysis of rainstorm and tide level,different sample methods will affect the risk probability results.Taking Zhong-Zhu union catchment as an example,based on annual maximum series sampling method and peak over threshold sampling method combined with Copula function,the risk analysis results indicate that:①Sample data obtained based on peak over threshold sampling method has a larger sample size,which contains more rainstorm events than sample data obtained based on annual maximum series sampling method,and these rainstorm events tend to encounter high tide;②On the basis of containing more effective sample information,the frequency analysis results obtained by peak over threshold sampling method are more accurate and with much more security from the perspective of waterlogged drainage;③The joint distribution of rainstorm and tide based on peak over threshold sampling method showed a better fitting degree,and the probability of encountering unexpected events is larger as a result of annual maximal series sampling method omitted some effective sample information.http://www.renminzhujiang.cn/thesisDetails#10.3969/j.issn.1001-9235.2024.02.014encounter of rainstorm and tiderisk analysisannual maximal series sampling methodpeak over threshold sampling methodCopula functionZhong-Zhu union catchment |
| spellingShingle | WANG Shangwei LIU Zengmei Encounter Risk Analysis of Rainstorm and Tide Base on Different Sampling Method Renmin Zhujiang encounter of rainstorm and tide risk analysis annual maximal series sampling method peak over threshold sampling method Copula function Zhong-Zhu union catchment |
| title | Encounter Risk Analysis of Rainstorm and Tide Base on Different Sampling Method |
| title_full | Encounter Risk Analysis of Rainstorm and Tide Base on Different Sampling Method |
| title_fullStr | Encounter Risk Analysis of Rainstorm and Tide Base on Different Sampling Method |
| title_full_unstemmed | Encounter Risk Analysis of Rainstorm and Tide Base on Different Sampling Method |
| title_short | Encounter Risk Analysis of Rainstorm and Tide Base on Different Sampling Method |
| title_sort | encounter risk analysis of rainstorm and tide base on different sampling method |
| topic | encounter of rainstorm and tide risk analysis annual maximal series sampling method peak over threshold sampling method Copula function Zhong-Zhu union catchment |
| url | http://www.renminzhujiang.cn/thesisDetails#10.3969/j.issn.1001-9235.2024.02.014 |
| work_keys_str_mv | AT wangshangwei encounterriskanalysisofrainstormandtidebaseondifferentsamplingmethod AT liuzengmei encounterriskanalysisofrainstormandtidebaseondifferentsamplingmethod |