Risk Identification of Severe Flood and Drought in Minjiang River Basin

To improve the scheduling plan for extreme hydrological events and severe drought and flood risks in the Minjiang River Basin, this paper employs the standardized runoff index SRI and standardized precipitation index SPI to identify and analyze the severe flood and drought risks in Minjiang River Ba...

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Main Author: WU Jing
Format: Article
Language:zho
Published: Editorial Office of Pearl River 2024-01-01
Series:Renmin Zhujiang
Subjects:
Online Access:http://www.renminzhujiang.cn/thesisDetails#10.3969/j.issn.1001-9235.2024.04.014
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author WU Jing
author_facet WU Jing
author_sort WU Jing
collection DOAJ
description To improve the scheduling plan for extreme hydrological events and severe drought and flood risks in the Minjiang River Basin, this paper employs the standardized runoff index SRI and standardized precipitation index SPI to identify and analyze the severe flood and drought risks in Minjiang River Basin according to the historical observation data of the basin.The results are as follows.①First, according to the drought and flood analysis on the time scale of year, there are four typical years in total including the typical drought years of 2003 and 2004 and the typical flood years of 1998 and 2016.The flood occurrence frequency is relatively low in the areas with high drought frequency in the Minjiang River Basin.②Second, according to the seasonal time scale analysis of drought and flood, the risk years of severe drought and flood in Minjiang River Basin in four seasons can be obtained, in which the spring and summer are dominated by extreme drought, and the autumn and winter are dominated by extreme flood.Meanwhile, the Z value of the four seasons SPI3 in Minjiang River Basin has a certain changing trend except in spring.In summary, the research results can provide basic data and technical support for coping with extreme hydrological events of drought and flood in the Minjiang River Basin in the future, and formulating emergency dispatching plans for severe drought and flood risks.
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spelling doaj-art-b5780b17d25341dab0c5d4c33d6085b52025-01-15T03:00:46ZzhoEditorial Office of Pearl RiverRenmin Zhujiang1001-92352024-01-014555305316Risk Identification of Severe Flood and Drought in Minjiang River BasinWU JingTo improve the scheduling plan for extreme hydrological events and severe drought and flood risks in the Minjiang River Basin, this paper employs the standardized runoff index SRI and standardized precipitation index SPI to identify and analyze the severe flood and drought risks in Minjiang River Basin according to the historical observation data of the basin.The results are as follows.①First, according to the drought and flood analysis on the time scale of year, there are four typical years in total including the typical drought years of 2003 and 2004 and the typical flood years of 1998 and 2016.The flood occurrence frequency is relatively low in the areas with high drought frequency in the Minjiang River Basin.②Second, according to the seasonal time scale analysis of drought and flood, the risk years of severe drought and flood in Minjiang River Basin in four seasons can be obtained, in which the spring and summer are dominated by extreme drought, and the autumn and winter are dominated by extreme flood.Meanwhile, the Z value of the four seasons SPI3 in Minjiang River Basin has a certain changing trend except in spring.In summary, the research results can provide basic data and technical support for coping with extreme hydrological events of drought and flood in the Minjiang River Basin in the future, and formulating emergency dispatching plans for severe drought and flood risks.http://www.renminzhujiang.cn/thesisDetails#10.3969/j.issn.1001-9235.2024.04.014droughtfloodSPISRIMann-KendallMinjiang River
spellingShingle WU Jing
Risk Identification of Severe Flood and Drought in Minjiang River Basin
Renmin Zhujiang
drought
flood
SPI
SRI
Mann-Kendall
Minjiang River
title Risk Identification of Severe Flood and Drought in Minjiang River Basin
title_full Risk Identification of Severe Flood and Drought in Minjiang River Basin
title_fullStr Risk Identification of Severe Flood and Drought in Minjiang River Basin
title_full_unstemmed Risk Identification of Severe Flood and Drought in Minjiang River Basin
title_short Risk Identification of Severe Flood and Drought in Minjiang River Basin
title_sort risk identification of severe flood and drought in minjiang river basin
topic drought
flood
SPI
SRI
Mann-Kendall
Minjiang River
url http://www.renminzhujiang.cn/thesisDetails#10.3969/j.issn.1001-9235.2024.04.014
work_keys_str_mv AT wujing riskidentificationofseverefloodanddroughtinminjiangriverbasin