Study on Flood Season Staging in Longtan Reservoir Based on Fisher Optimal Dissection Method
Based on the daily data of precipitation and runoff over the Longtan reservoir from 1960 to 2015,this paper selects four weight assignment methods to calculate the feature vector of flood season stages based on Fisher optimal dissection method,and analyzes the number of optimal flood season stages o...
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| Format: | Article |
| Language: | zho |
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Editorial Office of Pearl River
2021-01-01
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| Series: | Renmin Zhujiang |
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| Online Access: | http://www.renminzhujiang.cn/thesisDetails#10.3969/j.issn.1001-9235.2021.03.002 |
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| author | LI Dongqin HUANG Ya YI Ling HOU Guibing LI Yuanyuan |
| author_facet | LI Dongqin HUANG Ya YI Ling HOU Guibing LI Yuanyuan |
| author_sort | LI Dongqin |
| collection | DOAJ |
| description | Based on the daily data of precipitation and runoff over the Longtan reservoir from 1960 to 2015,this paper selects four weight assignment methods to calculate the feature vector of flood season stages based on Fisher optimal dissection method,and analyzes the number of optimal flood season stages of the reservoir.The results show that:When ten days are used as the unit of flood season staging,the weight coefficients have little influence on the result of flood season staging.The flood season staging results of the Longtan reservoir based on the Fisher optimal dissection method can better reflect the characteristics of rainstorms and flood in the flood season of the basin,and the optimal number of flood season stages is five.According to the optimal staging results,the flood season in the Longtan reservoir is divided into pre-flood transition period (April 1~April 30),pre-flood period (May 1~May 20),main flood period (May 21~July 20),post-flood period (July 21~September 10) and post-flood transition period (September 11~October 31). |
| format | Article |
| id | doaj-art-11197a1ad7b04e1bb8ea357507dafd68 |
| institution | Kabale University |
| issn | 1001-9235 |
| language | zho |
| publishDate | 2021-01-01 |
| publisher | Editorial Office of Pearl River |
| record_format | Article |
| series | Renmin Zhujiang |
| spelling | doaj-art-11197a1ad7b04e1bb8ea357507dafd682025-01-15T02:30:19ZzhoEditorial Office of Pearl RiverRenmin Zhujiang1001-92352021-01-014247649739Study on Flood Season Staging in Longtan Reservoir Based on Fisher Optimal Dissection MethodLI DongqinHUANG YaYI LingHOU GuibingLI YuanyuanBased on the daily data of precipitation and runoff over the Longtan reservoir from 1960 to 2015,this paper selects four weight assignment methods to calculate the feature vector of flood season stages based on Fisher optimal dissection method,and analyzes the number of optimal flood season stages of the reservoir.The results show that:When ten days are used as the unit of flood season staging,the weight coefficients have little influence on the result of flood season staging.The flood season staging results of the Longtan reservoir based on the Fisher optimal dissection method can better reflect the characteristics of rainstorms and flood in the flood season of the basin,and the optimal number of flood season stages is five.According to the optimal staging results,the flood season in the Longtan reservoir is divided into pre-flood transition period (April 1~April 30),pre-flood period (May 1~May 20),main flood period (May 21~July 20),post-flood period (July 21~September 10) and post-flood transition period (September 11~October 31).http://www.renminzhujiang.cn/thesisDetails#10.3969/j.issn.1001-9235.2021.03.002flood season stagingweighting coefficientFisher optimal dissection methodLongtan reservoir |
| spellingShingle | LI Dongqin HUANG Ya YI Ling HOU Guibing LI Yuanyuan Study on Flood Season Staging in Longtan Reservoir Based on Fisher Optimal Dissection Method Renmin Zhujiang flood season staging weighting coefficient Fisher optimal dissection method Longtan reservoir |
| title | Study on Flood Season Staging in Longtan Reservoir Based on Fisher Optimal Dissection Method |
| title_full | Study on Flood Season Staging in Longtan Reservoir Based on Fisher Optimal Dissection Method |
| title_fullStr | Study on Flood Season Staging in Longtan Reservoir Based on Fisher Optimal Dissection Method |
| title_full_unstemmed | Study on Flood Season Staging in Longtan Reservoir Based on Fisher Optimal Dissection Method |
| title_short | Study on Flood Season Staging in Longtan Reservoir Based on Fisher Optimal Dissection Method |
| title_sort | study on flood season staging in longtan reservoir based on fisher optimal dissection method |
| topic | flood season staging weighting coefficient Fisher optimal dissection method Longtan reservoir |
| url | http://www.renminzhujiang.cn/thesisDetails#10.3969/j.issn.1001-9235.2021.03.002 |
| work_keys_str_mv | AT lidongqin studyonfloodseasonstaginginlongtanreservoirbasedonfisheroptimaldissectionmethod AT huangya studyonfloodseasonstaginginlongtanreservoirbasedonfisheroptimaldissectionmethod AT yiling studyonfloodseasonstaginginlongtanreservoirbasedonfisheroptimaldissectionmethod AT houguibing studyonfloodseasonstaginginlongtanreservoirbasedonfisheroptimaldissectionmethod AT liyuanyuan studyonfloodseasonstaginginlongtanreservoirbasedonfisheroptimaldissectionmethod |