Article(id=1222963539686449519, tenantId=1146029695717560320, journalId=1205116964453384197, issueId=1222963536863678929, articleNumber=null, orderNo=null, doi=10.20040/j.cnki.1000-7709.2023.20221327, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1656345600000, receivedDateStr=2022-06-28, revisedDate=1659283200000, revisedDateStr=2022-08-01, acceptedDate=null, acceptedDateStr=null, onlineDate=1769506829424, onlineDateStr=2026-01-27, pubDate=1682352000000, pubDateStr=2023-04-25, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1769506829424, onlineIssueDateStr=2026-01-27, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1769506829424, creator=13701087609, updateTime=1769506829424, updator=13701087609, issue=Issue{id=1222963536863678929, tenantId=1146029695717560320, journalId=1205116964453384197, year='2023', volume='41', issue='4', 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=1769506828752, creator=13701087609, updateTime=1769508076664, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1222968771057279321, tenantId=1146029695717560320, journalId=1205116964453384197, issueId=1222963536863678929, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1222968771057279322, tenantId=1146029695717560320, journalId=1205116964453384197, issueId=1222963536863678929, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=9, endPage=12, ext={EN=ArticleExt(id=1222963539917136251, articleId=1222963539686449519, tenantId=1146029695717560320, journalId=1205116964453384197, language=EN, title=Analysis of Nonstationary Standardized Precipitation Index in Yunnan Province Based on GAMLSS Model, columnId=1222925279849341011, journalTitle=Water Resources and Power, columnName=HYDROLOGY, WATER RESOURCES AND ENVIRONMENT, runingTitle=null, highlight=null, articleAbstract=

Drought index is crucial to the study of drought. With the influence of climate change and human activities, the frequency distribution of hydrological time series changes with time, so the nonstationary of drought index needs to be considered. The standardized precipitation index (SSPI) considers that the precipitation obeys the Gamma distribution, the corresponding distribution function parameters are usually stationary and invariable. The actual distribution function parameters have a certain correlation with the time series. Therefore, based on the GAMLSS model, the nonstationary Gamma distribution model of precipitation series was constructed with time series as covariate. The nonstationary standardized precipitation index NNSPI was calculated. Taking Yunnan Province as an example, the monthly NNSPI and SSPI during 1960 to 2019 were calculated respectively. Comparing the two indices, it is found that the overall trend of drought recognition results of the two indices is similar. However, in 1960~1985, the number and grade of droughts identified by NNSPI were stronger than those identified by SSPI, and the two were similar in 1986~2005. In 2006~2019, the number and grade of droughts identified by SSPI gradually exceeded those identified by SSPI. Further analysis shows that the NNSPI with considering the time-varying distribution function parameters can more accurately reflect the actual drought situation.

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干旱指数对干旱的研究至关重要。随着气候变化和人类活动的影响,水文序列的频率分布随时间变化,因此需考虑干旱指数的非一致性。标准化降水指数SSPI认为降水服从Gamma分布,对应的分布函数参数通常稳定不变,而实际的分布函数参数与时间序列具有一定相关性,因此利用GAMLSS模型以时间序列为协变量构建了降水序列的非一致性Gamma分布模型,在此基础上计算出非一致性标准化降水指数NNSPI。以云南省为例,分别计算了1960~2019年的逐月NNSPISSPI,将两者进行对比分析,发现两者对干旱的识别结果总体趋势相近,但在1960~1985年NNSPI识别的干旱数量和等级强于SSPI,1986~2005年两者相近,而在2006~2019年,SSPI识别的干旱数量和等级逐渐超过NNSPI,进一步分析表明,考虑了分布函数参数随时间变化的NNSPI能更精确反映实际干旱情况。

, correspAuthors=null, authorNote=null, correspAuthorsNote=
董前进(1979-),男,博士、副教授,研究方向为水资源规划与管理,E-mail:
, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=6jE1ICvM8Ge7E50I5udj0g==, magXml=9VeDxkxre56cam03fJRfHw==, pdfUrl=null, pdf=W692ADxMeSiDGCc6478NeA==, pdfFileSize=2117108, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=6i02NqIr+CEKYia2okO4yw==, mapNumber=null, authorCompany=null, fund=null, authors=

陈灏(1994-),男,硕士、工程师,研究方向为水资源规划与管理,E-mail:

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陈灏(1994-),男,硕士、工程师,研究方向为水资源规划与管理,E-mail:

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陈灏(1994-),男,硕士、工程师,研究方向为水资源规划与管理,E-mail:

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基于GAMLSS模型的云南省非一致性标准化降水指数分析
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陈灏 1 , 张晓琳 1 , 胡彩霞 1 , 张艳敏 2 , 陈畅 1 , 董前进 3
水电能源科学 | 水文水资源与环境 2023,41(4): 9-12
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水电能源科学 | 水文水资源与环境 2023, 41(4): 9-12
基于GAMLSS模型的云南省非一致性标准化降水指数分析
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陈灏1 , 张晓琳1, 胡彩霞1, 张艳敏2, 陈畅1, 董前进3
作者信息
  • 1.珠江水文水资源勘测中心,广东 广州 510370
  • 2.中工武大设计集团有限公司,湖北 武汉 430070
  • 3.武汉大学水资源与水电工程科学国家重点实验室,湖北 武汉 430072
  • 陈灏(1994-),男,硕士、工程师,研究方向为水资源规划与管理,E-mail:

通讯作者:

董前进(1979-),男,博士、副教授,研究方向为水资源规划与管理,E-mail:
Analysis of Nonstationary Standardized Precipitation Index in Yunnan Province Based on GAMLSS Model
Hao CHEN1 , Xiao-lin ZHANG1, Cai-xia HU1, Yan-min ZHANG2, Chang CHEN1, Qian-jin DONG3
Affiliations
  • 1.Pearl River Hydrology and Water Resources Survey Center, Guangzhou 510370, China
  • 2.CEWUD Group Company Limited, Wuhan 430070, China
  • 3.State Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan University, Wuhan 430072, China
出版时间: 2023-04-25 doi: 10.20040/j.cnki.1000-7709.2023.20221327
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干旱指数对干旱的研究至关重要。随着气候变化和人类活动的影响,水文序列的频率分布随时间变化,因此需考虑干旱指数的非一致性。标准化降水指数SSPI认为降水服从Gamma分布,对应的分布函数参数通常稳定不变,而实际的分布函数参数与时间序列具有一定相关性,因此利用GAMLSS模型以时间序列为协变量构建了降水序列的非一致性Gamma分布模型,在此基础上计算出非一致性标准化降水指数NNSPI。以云南省为例,分别计算了1960~2019年的逐月NNSPISSPI,将两者进行对比分析,发现两者对干旱的识别结果总体趋势相近,但在1960~1985年NNSPI识别的干旱数量和等级强于SSPI,1986~2005年两者相近,而在2006~2019年,SSPI识别的干旱数量和等级逐渐超过NNSPI,进一步分析表明,考虑了分布函数参数随时间变化的NNSPI能更精确反映实际干旱情况。

干旱指数  /  NSPI  /  GAMLSS模型  /  云南省

Drought index is crucial to the study of drought. With the influence of climate change and human activities, the frequency distribution of hydrological time series changes with time, so the nonstationary of drought index needs to be considered. The standardized precipitation index (SSPI) considers that the precipitation obeys the Gamma distribution, the corresponding distribution function parameters are usually stationary and invariable. The actual distribution function parameters have a certain correlation with the time series. Therefore, based on the GAMLSS model, the nonstationary Gamma distribution model of precipitation series was constructed with time series as covariate. The nonstationary standardized precipitation index NNSPI was calculated. Taking Yunnan Province as an example, the monthly NNSPI and SSPI during 1960 to 2019 were calculated respectively. Comparing the two indices, it is found that the overall trend of drought recognition results of the two indices is similar. However, in 1960~1985, the number and grade of droughts identified by NNSPI were stronger than those identified by SSPI, and the two were similar in 1986~2005. In 2006~2019, the number and grade of droughts identified by SSPI gradually exceeded those identified by SSPI. Further analysis shows that the NNSPI with considering the time-varying distribution function parameters can more accurately reflect the actual drought situation.

drought Index  /  NNSPI  /  GAMLSS model  /  Yunnan Province
陈灏, 张晓琳, 胡彩霞, 张艳敏, 陈畅, 董前进. 基于GAMLSS模型的云南省非一致性标准化降水指数分析. 水电能源科学, 2023 , 41 (4) : 9 -12 . DOI: 10.20040/j.cnki.1000-7709.2023.20221327
Hao CHEN, Xiao-lin ZHANG, Cai-xia HU, Yan-min ZHANG, Chang CHEN, Qian-jin DONG. Analysis of Nonstationary Standardized Precipitation Index in Yunnan Province Based on GAMLSS Model[J]. Water Resources and Power, 2023 , 41 (4) : 9 -12 . DOI: 10.20040/j.cnki.1000-7709.2023.20221327
  • 国家自然科学基金项目(51979198)
2023年第41卷第4期
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doi: 10.20040/j.cnki.1000-7709.2023.20221327
  • 接收时间:2022-06-28
  • 首发时间:2026-01-27
  • 出版时间:2023-04-25
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  • 收稿日期:2022-06-28
  • 修回日期:2022-08-01
基金
国家自然科学基金项目(51979198)
作者信息
    1.珠江水文水资源勘测中心,广东 广州 510370
    2.中工武大设计集团有限公司,湖北 武汉 430070
    3.武汉大学水资源与水电工程科学国家重点实验室,湖北 武汉 430072

通讯作者:

董前进(1979-),男,博士、副教授,研究方向为水资源规划与管理,E-mail:
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2种不同金属材料的力学参数

Family
属数
Number of
genus
种数
Number of
species
占总种数比例
Percentage of
total species (%)

Genus
种数
Number of
species
占总种数比例
Percentage of total
species (%)
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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