Article(id=1223210597341315970, tenantId=1146029695717560320, journalId=1205116964453384197, issueId=1223210584024400210, articleNumber=null, orderNo=null, doi=10.20040/j.cnki.1000-7709.2023.20230125, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1675353600000, receivedDateStr=2023-02-03, revisedDate=1679328000000, revisedDateStr=2023-03-21, acceptedDate=null, acceptedDateStr=null, onlineDate=1769565732560, onlineDateStr=2026-01-28, pubDate=1687622400000, pubDateStr=2023-06-25, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1769565732560, onlineIssueDateStr=2026-01-28, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1769565732560, creator=13701087609, updateTime=1769565732560, updator=13701087609, issue=Issue{id=1223210584024400210, tenantId=1146029695717560320, journalId=1205116964453384197, year='2023', volume='41', issue='6', pageStart='1', pageEnd='220', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1769565729385, creator=13701087609, updateTime=1769593153259, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1223325608164348105, tenantId=1146029695717560320, journalId=1205116964453384197, issueId=1223210584024400210, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1223325608164348106, tenantId=1146029695717560320, journalId=1205116964453384197, issueId=1223210584024400210, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=5, endPage=8, ext={EN=ArticleExt(id=1223210598557664197, articleId=1223210597341315970, tenantId=1146029695717560320, journalId=1205116964453384197, language=EN, title=Construction and Improvement of Clustering Model for Long-term Areal Rainfall Forecasting in the Upper Reaches of the Yangtze River, columnId=1222925279849341011, journalTitle=Water Resources and Power, columnName=HYDROLOGY, WATER RESOURCES AND ENVIRONMENT, runingTitle=null, highlight=null, articleAbstract=

The cluster forecasting model is a long-term forecasting physical model based on mathematical statistics. This method has been applied in the long-term forecast of the upper reaches of the Yangtze River. After years of practice, there is space for improvement in accuracy and efficiency of the model. This paper selected the upper reaches of the Yangtze River as the demonstration area for forecast, the monthly areal rainfall from June to August as the forecast object, and used the coincidence rate of anomaly symbol and the percentage of anomaly error as the test methods of the model. And then the construction process and improvement of the model were described. Finally, the improved model was used to forecast the monthly area rainfall in the upper reaches of the Yangtze River from June to August during 2020 to 2022. The prediction results show that the improved model has a great improvement in the anomaly sign agreement rate and the percentage of anomaly error, and it has been implemented easily, which has certain reference value.

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聚类预报模型是一种基于长系列数据分析,采用数理统计方法进行量级预报的长期预报模型,并应用于国内多个流域长期预报中。经过多年实践,模型在准确性和建模效率上还有提升空间。基于该模型原理,选取长江上游为预报示范区,6~8月逐月面雨量为预报对象,预报与均值相比偏多或偏少和量级作为该模型的检验方法,阐述聚类模型构建的流程和改进。最后利用改进前后的模型分别预测2020~2022年长江上游6~8月逐月面雨量,预测结果表明改进后的模型在距平符号一致率和距平误差百分率上有较大提升,且建模过程简单,操作性强,有一定参考价值。

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陈瑜彬(1981-),男,教授级高级工程师,研究方向为预报调度一体化,E-mail:
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顾丽(1990-),女,工程师,研究方向为水文信息化,E-mail:

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顾丽(1990-),女,工程师,研究方向为水文信息化,E-mail:

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顾丽(1990-),女,工程师,研究方向为水文信息化,E-mail:

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面向长江上游面雨量长期预报的聚类模型构建和改进
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顾丽 , 陈瑜彬 , 李春龙
水电能源科学 | 水文水资源与环境 2023,41(6): 5-8
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水电能源科学 | 水文水资源与环境 2023, 41(6): 5-8
面向长江上游面雨量长期预报的聚类模型构建和改进
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顾丽 , 陈瑜彬 , 李春龙
作者信息
  • 长江水利委员会水文局,湖北 武汉 430010
  • 顾丽(1990-),女,工程师,研究方向为水文信息化,E-mail:

通讯作者:

陈瑜彬(1981-),男,教授级高级工程师,研究方向为预报调度一体化,E-mail:
Construction and Improvement of Clustering Model for Long-term Areal Rainfall Forecasting in the Upper Reaches of the Yangtze River
Li GU , Yu-bin CHEN , Chun-long LI
Affiliations
  • Bureau of Hydrology, Changjiang Water Resources Commission of the Ministry of Water Resources, Wuhan 430010, China
出版时间: 2023-06-25 doi: 10.20040/j.cnki.1000-7709.2023.20230125
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聚类预报模型是一种基于长系列数据分析,采用数理统计方法进行量级预报的长期预报模型,并应用于国内多个流域长期预报中。经过多年实践,模型在准确性和建模效率上还有提升空间。基于该模型原理,选取长江上游为预报示范区,6~8月逐月面雨量为预报对象,预报与均值相比偏多或偏少和量级作为该模型的检验方法,阐述聚类模型构建的流程和改进。最后利用改进前后的模型分别预测2020~2022年长江上游6~8月逐月面雨量,预测结果表明改进后的模型在距平符号一致率和距平误差百分率上有较大提升,且建模过程简单,操作性强,有一定参考价值。

预报  /  聚类  /  模型  /  长江上游  /  面雨量

The cluster forecasting model is a long-term forecasting physical model based on mathematical statistics. This method has been applied in the long-term forecast of the upper reaches of the Yangtze River. After years of practice, there is space for improvement in accuracy and efficiency of the model. This paper selected the upper reaches of the Yangtze River as the demonstration area for forecast, the monthly areal rainfall from June to August as the forecast object, and used the coincidence rate of anomaly symbol and the percentage of anomaly error as the test methods of the model. And then the construction process and improvement of the model were described. Finally, the improved model was used to forecast the monthly area rainfall in the upper reaches of the Yangtze River from June to August during 2020 to 2022. The prediction results show that the improved model has a great improvement in the anomaly sign agreement rate and the percentage of anomaly error, and it has been implemented easily, which has certain reference value.

forecast  /  cluster  /  model  /  the upper reaches of the Yangtze River  /  areal rainfall
顾丽, 陈瑜彬, 李春龙. 面向长江上游面雨量长期预报的聚类模型构建和改进. 水电能源科学, 2023 , 41 (6) : 5 -8 . DOI: 10.20040/j.cnki.1000-7709.2023.20230125
Li GU, Yu-bin CHEN, Chun-long LI. Construction and Improvement of Clustering Model for Long-term Areal Rainfall Forecasting in the Upper Reaches of the Yangtze River[J]. Water Resources and Power, 2023 , 41 (6) : 5 -8 . DOI: 10.20040/j.cnki.1000-7709.2023.20230125
  • 国家自然科学基金青年基金项目(52009012)
  • 国家重点研发计划(2021YFC3200301)
2023年第41卷第6期
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doi: 10.20040/j.cnki.1000-7709.2023.20230125
  • 接收时间:2023-02-03
  • 首发时间:2026-01-28
  • 出版时间:2023-06-25
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出版历史
  • 收稿日期:2023-02-03
  • 修回日期:2023-03-21
基金
国家自然科学基金青年基金项目(52009012)
国家重点研发计划(2021YFC3200301)
作者信息
    长江水利委员会水文局,湖北 武汉 430010

通讯作者:

陈瑜彬(1981-),男,教授级高级工程师,研究方向为预报调度一体化,E-mail:
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2种不同金属材料的力学参数

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鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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