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Water Well Hydrographs: An Underutilized Resource for Characterizing Subsurface Conditions.

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Title: Water Well Hydrographs: An Underutilized Resource for Characterizing Subsurface Conditions.
Authors: Butler Jr, J. J.1 jbutler@kgs.ku.edu, Knobbe, S.1, Reboulet, E. C.1, Whittemore, D. O.1, Wilson, B. B.1, Bohling, G. C.1
Source: Ground Water. Nov/Dec2021, Vol. 59 Issue 6, p808-818. 11p.
Subjects: Wells, Irrigation farming, Geological surveys, Conditioned response, Measurement errors, Horizontal wells
Abstract: Many of the world's major aquifers are under severe stress as a result of intensive pumping to support irrigated agriculture and provide drinking water supplies for millions. The question of what the future holds for these aquifers is one of global importance. Without better information about subsurface conditions, it will be difficult to reliably assess an aquifer's response to management actions and climatic stresses. One important but underutilized source of information is the data from monitoring well networks that provide near-continuous records of water levels through time. Most organizations running these networks are, by necessity, primarily focused on network maintenance. The result is that relatively little attention is given to interpretation of the acquired hydrographs. However, embedded in those hydrographs is valuable information about subsurface conditions and aquifer responses to natural and anthropogenic stresses. We demonstrate the range of insights that can be gleaned from such hydrographs using data from the High Plains aquifer index well network of the Kansas Geological Survey. We show how information about an aquifer's hydraulic state and lateral extent, the nature of recharge, the hydraulic connection to the aquifer and nearby pumping wells, and the expected response to conservation-based pumping reductions can be extracted from these hydrographs. The value of this information is dependent on accurate water-level measurements; errors in those measurements can make it difficult to fully exploit the insights that water-well hydrographs can provide. We therefore conclude by presenting measures that can help reduce the potential for such errors. [ABSTRACT FROM AUTHOR]
Copyright of Ground Water 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
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DbLabel: Engineering Source
An: 154279655
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
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  Data: Water Well Hydrographs: An Underutilized Resource for Characterizing Subsurface Conditions.
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  Data: <searchLink fieldCode="JN" term="%22Ground+Water%22">Ground Water</searchLink>. Nov/Dec2021, Vol. 59 Issue 6, p808-818. 11p.
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  Data: <searchLink fieldCode="DE" term="%22Wells%22">Wells</searchLink><br /><searchLink fieldCode="DE" term="%22Irrigation+farming%22">Irrigation farming</searchLink><br /><searchLink fieldCode="DE" term="%22Geological+surveys%22">Geological surveys</searchLink><br /><searchLink fieldCode="DE" term="%22Conditioned+response%22">Conditioned response</searchLink><br /><searchLink fieldCode="DE" term="%22Measurement+errors%22">Measurement errors</searchLink><br /><searchLink fieldCode="DE" term="%22Horizontal+wells%22">Horizontal wells</searchLink>
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  Data: Many of the world's major aquifers are under severe stress as a result of intensive pumping to support irrigated agriculture and provide drinking water supplies for millions. The question of what the future holds for these aquifers is one of global importance. Without better information about subsurface conditions, it will be difficult to reliably assess an aquifer's response to management actions and climatic stresses. One important but underutilized source of information is the data from monitoring well networks that provide near-continuous records of water levels through time. Most organizations running these networks are, by necessity, primarily focused on network maintenance. The result is that relatively little attention is given to interpretation of the acquired hydrographs. However, embedded in those hydrographs is valuable information about subsurface conditions and aquifer responses to natural and anthropogenic stresses. We demonstrate the range of insights that can be gleaned from such hydrographs using data from the High Plains aquifer index well network of the Kansas Geological Survey. We show how information about an aquifer's hydraulic state and lateral extent, the nature of recharge, the hydraulic connection to the aquifer and nearby pumping wells, and the expected response to conservation-based pumping reductions can be extracted from these hydrographs. The value of this information is dependent on accurate water-level measurements; errors in those measurements can make it difficult to fully exploit the insights that water-well hydrographs can provide. We therefore conclude by presenting measures that can help reduce the potential for such errors. [ABSTRACT FROM AUTHOR]
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  Data: <i>Copyright of Ground Water 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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        Value: 10.1111/gwat.13119
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      – Code: eng
        Text: English
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        PageCount: 11
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    Subjects:
      – SubjectFull: Wells
        Type: general
      – SubjectFull: Irrigation farming
        Type: general
      – SubjectFull: Geological surveys
        Type: general
      – SubjectFull: Conditioned response
        Type: general
      – SubjectFull: Measurement errors
        Type: general
      – SubjectFull: Horizontal wells
        Type: general
    Titles:
      – TitleFull: Water Well Hydrographs: An Underutilized Resource for Characterizing Subsurface Conditions.
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              Text: Nov/Dec2021
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              Y: 2021
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