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Water-level recession characteristics in isolated pools within non-perennial streams.

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Title: Water-level recession characteristics in isolated pools within non-perennial streams.
Authors: Yu, Songyan1 (AUTHOR) sunny.yu@griffith.edu.au, Burrows, Ryan M.2 (AUTHOR), Shanafield, Margaret3 (AUTHOR), Kennard, Mark J.1 (AUTHOR)
Source: Advances in Water Resources. Aug2022, Vol. 166, pN.PAG-N.PAG. 1p.
Subjects: Water levels, Streamflow, Ephemeral streams
Geographic Terms: Australia
Abstract: • Water level in isolated pools connected to groundwater recedes at a constant rate. • The recession rates vary considerably amongst cease-to-flow periods within one stream. • The recession rates are significantly different between nearby streams. • This study provides new knowledge of water level recession in hyporheic flow phase. Persistent surface water pools within non-perennial streams provide critical refuges for freshwater species by facilitating their survival during extended dry periods. However, our understanding of how pool water levels recede is limited, hindering our ability to quantify and predict aquatic refuge persistence. We characterise variations in water-level recession rates based on one year of water-level measurements in five non-perennial streams. Most of the observations show that the water level recedes at a constant rate after streamflow ceases in our study streams, a rate often significantly higher than that during low-flow periods. However, water-level recession rates varied considerably amongst cease-to-flow periods within pools in the same non-perennial stream and between nearby streams. The constancy of water-level recession during a cease-to-flow period is applicable to other non-perennial streams, but a detailed understanding of the factors influencing recession rates is needed for prediction in ungauged streams and identifying persistent aquatic refuges across river networks. [ABSTRACT FROM AUTHOR]
Copyright of Advances in Water Resources is the property of Elsevier B.V. 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: 158055979
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
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  Data: Water-level recession characteristics in isolated pools within non-perennial streams.
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  Data: <searchLink fieldCode="AR" term="%22Yu%2C+Songyan%22">Yu, Songyan</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> sunny.yu@griffith.edu.au</i><br /><searchLink fieldCode="AR" term="%22Burrows%2C+Ryan+M%2E%22">Burrows, Ryan M.</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Shanafield%2C+Margaret%22">Shanafield, Margaret</searchLink><relatesTo>3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Kennard%2C+Mark+J%2E%22">Kennard, Mark J.</searchLink><relatesTo>1</relatesTo> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22Advances+in+Water+Resources%22">Advances in Water Resources</searchLink>. Aug2022, Vol. 166, pN.PAG-N.PAG. 1p.
– Name: Subject
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  Data: <searchLink fieldCode="DE" term="%22Water+levels%22">Water levels</searchLink><br /><searchLink fieldCode="DE" term="%22Streamflow%22">Streamflow</searchLink><br /><searchLink fieldCode="DE" term="%22Ephemeral+streams%22">Ephemeral streams</searchLink>
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  Data: <searchLink fieldCode="DE" term="%22Australia%22">Australia</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: • Water level in isolated pools connected to groundwater recedes at a constant rate. • The recession rates vary considerably amongst cease-to-flow periods within one stream. • The recession rates are significantly different between nearby streams. • This study provides new knowledge of water level recession in hyporheic flow phase. Persistent surface water pools within non-perennial streams provide critical refuges for freshwater species by facilitating their survival during extended dry periods. However, our understanding of how pool water levels recede is limited, hindering our ability to quantify and predict aquatic refuge persistence. We characterise variations in water-level recession rates based on one year of water-level measurements in five non-perennial streams. Most of the observations show that the water level recedes at a constant rate after streamflow ceases in our study streams, a rate often significantly higher than that during low-flow periods. However, water-level recession rates varied considerably amongst cease-to-flow periods within pools in the same non-perennial stream and between nearby streams. The constancy of water-level recession during a cease-to-flow period is applicable to other non-perennial streams, but a detailed understanding of the factors influencing recession rates is needed for prediction in ungauged streams and identifying persistent aquatic refuges across river networks. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
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  Data: <i>Copyright of Advances in Water Resources is the property of Elsevier B.V. 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:
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    Identifiers:
      – Type: doi
        Value: 10.1016/j.advwatres.2022.104267
    Languages:
      – Code: eng
        Text: English
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        PageCount: 1
        StartPage: N.PAG
    Subjects:
      – SubjectFull: Water levels
        Type: general
      – SubjectFull: Streamflow
        Type: general
      – SubjectFull: Ephemeral streams
        Type: general
      – SubjectFull: Australia
        Type: general
    Titles:
      – TitleFull: Water-level recession characteristics in isolated pools within non-perennial streams.
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            NameFull: Yu, Songyan
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            NameFull: Burrows, Ryan M.
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            NameFull: Shanafield, Margaret
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            NameFull: Kennard, Mark J.
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            – D: 01
              M: 08
              Text: Aug2022
              Type: published
              Y: 2022
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              Value: 166
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            – TitleFull: Advances in Water Resources
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