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Assessment of flow regime alteration in the Krishna River basin.

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Title: Assessment of flow regime alteration in the Krishna River basin.
Authors: Uday Kumar, Akula1 (AUTHOR) uday.kumar155@gmail.com, K V, Jayakumar1 (AUTHOR)
Source: ISH Journal of Hydraulic Engineering. May2022, Vol. 28 Issue 2, p212-218. 7p.
Subjects: Watersheds, Instream flow, Dams, Water management
Abstract: In the present study, Indicator of Hydrological Alteration (IHA) tool is used to calculate the Hydrologic Alteration (HA) along the middle and lower Krishna River Basin. 33 ecological parameters are evaluated to understand the impact of the dams on the downstream of the ecological instream flow. This study focuses on assessing HA through dam impact periods by differentiating and comparing the discharge data into pre- and post-dam impact periods. Therefore, the data affected by the climate variability are eliminated. The obtained results show that the impact of the Nagarjuna Sagar dam is high with an average HA value of 0.81 among the five dams, and PD Jurala has slightly altered with an average HA value of 0.59. Out of the 33 parameters considered, 11 have alternated highly, with HA values ranging from 0.61 to 0.83. The impact of dams on the Krishna River has shown a typical hydrological alteration which might be the risk to the aquatic species. The output of this study will be helpful to the water managers with sufficient information to make a decision. [ABSTRACT FROM AUTHOR]
Copyright of ISH Journal of Hydraulic Engineering is the property of Taylor & Francis Ltd and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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Header DbId: egs
DbLabel: Engineering Source
An: 156867757
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
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  Label: Title
  Group: Ti
  Data: Assessment of flow regime alteration in the Krishna River basin.
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  Data: <searchLink fieldCode="AR" term="%22Uday+Kumar%2C+Akula%22">Uday Kumar, Akula</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> uday.kumar155@gmail.com</i><br /><searchLink fieldCode="AR" term="%22K+V%2C+Jayakumar%22">K V, Jayakumar</searchLink><relatesTo>1</relatesTo> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22ISH+Journal+of+Hydraulic+Engineering%22">ISH Journal of Hydraulic Engineering</searchLink>. May2022, Vol. 28 Issue 2, p212-218. 7p.
– Name: Subject
  Label: Subjects
  Group: Su
  Data: <searchLink fieldCode="DE" term="%22Watersheds%22">Watersheds</searchLink><br /><searchLink fieldCode="DE" term="%22Instream+flow%22">Instream flow</searchLink><br /><searchLink fieldCode="DE" term="%22Dams%22">Dams</searchLink><br /><searchLink fieldCode="DE" term="%22Water+management%22">Water management</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: In the present study, Indicator of Hydrological Alteration (IHA) tool is used to calculate the Hydrologic Alteration (HA) along the middle and lower Krishna River Basin. 33 ecological parameters are evaluated to understand the impact of the dams on the downstream of the ecological instream flow. This study focuses on assessing HA through dam impact periods by differentiating and comparing the discharge data into pre- and post-dam impact periods. Therefore, the data affected by the climate variability are eliminated. The obtained results show that the impact of the Nagarjuna Sagar dam is high with an average HA value of 0.81 among the five dams, and PD Jurala has slightly altered with an average HA value of 0.59. Out of the 33 parameters considered, 11 have alternated highly, with HA values ranging from 0.61 to 0.83. The impact of dams on the Krishna River has shown a typical hydrological alteration which might be the risk to the aquatic species. The output of this study will be helpful to the water managers with sufficient information to make a decision. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of ISH Journal of Hydraulic Engineering is the property of Taylor & Francis Ltd and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.1080/09715010.2020.1852979
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      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 7
        StartPage: 212
    Subjects:
      – SubjectFull: Watersheds
        Type: general
      – SubjectFull: Instream flow
        Type: general
      – SubjectFull: Dams
        Type: general
      – SubjectFull: Water management
        Type: general
    Titles:
      – TitleFull: Assessment of flow regime alteration in the Krishna River basin.
        Type: main
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      – PersonEntity:
          Name:
            NameFull: Uday Kumar, Akula
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          Name:
            NameFull: K V, Jayakumar
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          Dates:
            – D: 01
              M: 05
              Text: May2022
              Type: published
              Y: 2022
          Identifiers:
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              Value: 09715010
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            – Type: volume
              Value: 28
            – Type: issue
              Value: 2
          Titles:
            – TitleFull: ISH Journal of Hydraulic Engineering
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