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Altitudinal Distribution of Meltwater and Its Effects on Glacio‐Hydrology in Glacierized Catchments, Central Asia.

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Title: Altitudinal Distribution of Meltwater and Its Effects on Glacio‐Hydrology in Glacierized Catchments, Central Asia.
Authors: Shafeeque, Muhammad1 (AUTHOR), Luo, Yi1 (AUTHOR) luoyi@igsnrr.ac.cn, Wang, Xiaolei1 (AUTHOR), Sun, Lin1 (AUTHOR)
Source: Journal of the American Water Resources Association. Feb2020, Vol. 56 Issue 1, p30-52. 23p.
Subjects: Runoff, Meltwater, Snowmelt, Water supply, Glacial melting, Watersheds, Mass budget (Geophysics)
Geographic Terms: Central Asia, Tien Shan
Abstract: In glacierized catchments, elevation is correlated with meltwater through its association with temperature, precipitation, and glacier hypsometry. The revelation of the altitudinal distribution of meltwater, unattended and not fully understood in previous work, might provide a better understanding of climate change impacts on glacio‐hydrology. Here, critical zone approach was defined and applied in 12 glacierized catchments of the Tien Shan–Pamir–Karakorum Mountains, Central Asia using manually calibrated glacier‐enhanced Soil and Water Assessment Tool model over 1966–2005. The critical zone, a sequence of elevation bands with above‐average snow and glacier melt, contributes maximum meltwater to total runoff. The critical zone shared 37%–95% (average = 80%) of meltwater contributions to total runoff, although its size was only 13%–30% of the total elevational relief. The critical zone controlled 76% and 82% variability in relative changes of glacier area and total runoff at the catchment scale, respectively. The increase in temperature was identified as the dominant driver for variations in total runoff in all catchments except Vakhsh and Yurungkash, where precipitation change remained dominant. Overall, glacier hypsometry limited the first‐order control of meltwater distributions on glacio‐hydrology. It is concluded that critical zone approach can interpret the proxy role of elevation to affect water availability under climate and glacier area change in glacierized catchments. Research Impact Statement: Critical zone controls larger portion of variability in meltwater and runoff, whereas temperature change is identified as dominant driver for total runoff changes in most of the glacierized catchments. [ABSTRACT FROM AUTHOR]
Copyright of Journal of the American Water Resources Association is the property of Wiley-Blackwell 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
FullText Text:
  Availability: 0
Header DbId: egs
DbLabel: Engineering Source
An: 141719996
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
IllustrationInfo
Items – Name: Title
  Label: Title
  Group: Ti
  Data: Altitudinal Distribution of Meltwater and Its Effects on Glacio‐Hydrology in Glacierized Catchments, Central Asia.
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  Data: <searchLink fieldCode="AR" term="%22Shafeeque%2C+Muhammad%22">Shafeeque, Muhammad</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Luo%2C+Yi%22">Luo, Yi</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> luoyi@igsnrr.ac.cn</i><br /><searchLink fieldCode="AR" term="%22Wang%2C+Xiaolei%22">Wang, Xiaolei</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Sun%2C+Lin%22">Sun, Lin</searchLink><relatesTo>1</relatesTo> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22Journal+of+the+American+Water+Resources+Association%22">Journal of the American Water Resources Association</searchLink>. Feb2020, Vol. 56 Issue 1, p30-52. 23p.
– Name: Subject
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  Data: <searchLink fieldCode="DE" term="%22Runoff%22">Runoff</searchLink><br /><searchLink fieldCode="DE" term="%22Meltwater%22">Meltwater</searchLink><br /><searchLink fieldCode="DE" term="%22Snowmelt%22">Snowmelt</searchLink><br /><searchLink fieldCode="DE" term="%22Water+supply%22">Water supply</searchLink><br /><searchLink fieldCode="DE" term="%22Glacial+melting%22">Glacial melting</searchLink><br /><searchLink fieldCode="DE" term="%22Watersheds%22">Watersheds</searchLink><br /><searchLink fieldCode="DE" term="%22Mass+budget+%28Geophysics%29%22">Mass budget (Geophysics)</searchLink>
– Name: SubjectGeographic
  Label: Geographic Terms
  Group: Su
  Data: <searchLink fieldCode="DE" term="%22Central+Asia%22">Central Asia</searchLink><br /><searchLink fieldCode="DE" term="%22Tien+Shan%22">Tien Shan</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: In glacierized catchments, elevation is correlated with meltwater through its association with temperature, precipitation, and glacier hypsometry. The revelation of the altitudinal distribution of meltwater, unattended and not fully understood in previous work, might provide a better understanding of climate change impacts on glacio‐hydrology. Here, critical zone approach was defined and applied in 12 glacierized catchments of the Tien Shan–Pamir–Karakorum Mountains, Central Asia using manually calibrated glacier‐enhanced Soil and Water Assessment Tool model over 1966–2005. The critical zone, a sequence of elevation bands with above‐average snow and glacier melt, contributes maximum meltwater to total runoff. The critical zone shared 37%–95% (average = 80%) of meltwater contributions to total runoff, although its size was only 13%–30% of the total elevational relief. The critical zone controlled 76% and 82% variability in relative changes of glacier area and total runoff at the catchment scale, respectively. The increase in temperature was identified as the dominant driver for variations in total runoff in all catchments except Vakhsh and Yurungkash, where precipitation change remained dominant. Overall, glacier hypsometry limited the first‐order control of meltwater distributions on glacio‐hydrology. It is concluded that critical zone approach can interpret the proxy role of elevation to affect water availability under climate and glacier area change in glacierized catchments. Research Impact Statement: Critical zone controls larger portion of variability in meltwater and runoff, whereas temperature change is identified as dominant driver for total runoff changes in most of the glacierized catchments. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Journal of the American Water Resources Association is the property of Wiley-Blackwell 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: 10.1111/1752-1688.12805
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 23
        StartPage: 30
    Subjects:
      – SubjectFull: Runoff
        Type: general
      – SubjectFull: Meltwater
        Type: general
      – SubjectFull: Snowmelt
        Type: general
      – SubjectFull: Water supply
        Type: general
      – SubjectFull: Glacial melting
        Type: general
      – SubjectFull: Watersheds
        Type: general
      – SubjectFull: Mass budget (Geophysics)
        Type: general
      – SubjectFull: Central Asia
        Type: general
      – SubjectFull: Tien Shan
        Type: general
    Titles:
      – TitleFull: Altitudinal Distribution of Meltwater and Its Effects on Glacio‐Hydrology in Glacierized Catchments, Central Asia.
        Type: main
  BibRelationships:
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      – PersonEntity:
          Name:
            NameFull: Shafeeque, Muhammad
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          Name:
            NameFull: Luo, Yi
      – PersonEntity:
          Name:
            NameFull: Wang, Xiaolei
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          Name:
            NameFull: Sun, Lin
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            – D: 01
              M: 02
              Text: Feb2020
              Type: published
              Y: 2020
          Identifiers:
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              Value: 1093474X
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              Value: 56
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              Value: 1
          Titles:
            – TitleFull: Journal of the American Water Resources Association
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