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Ice-jam model testing: Matapedia River case studies, 1994 and 1995

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Title: Ice-jam model testing: Matapedia River case studies, 1994 and 1995
Authors: Beltaos, Spyros1 spyros.beltaos@ec.gc.ca, Burrell, Brian C.2 bburrell@rvanderson.com
Source: Cold Regions Science & Technology. Jan2010, Vol. 60 Issue 1, p29-39. 11p.
Subjects: Hydraulic control systems, Surface roughness, Ice, Discrete choice models, Case studies, Bathymetric maps, Sensitivity analysis
Geographic Terms: Matapédia River (Québec), Québec (Province)
Abstract: Abstract: During the 1994 and 1995 spring breakup events, ice jams were formed on the lower Matapedia River and remained in place long enough to permit collection of detailed field data on jam thickness as well as on water surface elevations. Together with bathymetric data that were obtained in the following summers, the spring measurements form one of the most complete ice-jam data sets that have been obtained to date. This allowed examination of how well current understanding of the hydromechanics of ice jams, incorporated in a numerical model, can describe the results of the measurements. The availability of jam thickness data was particularly advantageous because it removed the ambiguity associated with model calibrations that are solely based on water level measurements. With suitable choice of the model parameters, the model reproduced the measured water level profiles of the jam very closely, while providing reasonable simulations of jam thickness. The selected values of the model parameters were consistent with values established by previous applications on other rivers, and almost identical between the two Matapedia jams, despite contrasts in jam severity and river flow. Model sensitivity was explored using the more complete 1995 data set and found to be moderate. The detail of the available data also made it possible to scrutinize hydraulic resistance characteristics of flows underneath ice jams, and confirm earlier formulations specifically designed to address extreme-roughness conditions. [Copyright &y& Elsevier]
Copyright of Cold Regions Science & Technology 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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  Availability: 0
Header DbId: egs
DbLabel: Engineering Source
An: 45215649
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
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Items – Name: Title
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  Data: Ice-jam model testing: Matapedia River case studies, 1994 and 1995
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  Data: <searchLink fieldCode="AR" term="%22Beltaos%2C+Spyros%22">Beltaos, Spyros</searchLink><relatesTo>1</relatesTo><i> spyros.beltaos@ec.gc.ca</i><br /><searchLink fieldCode="AR" term="%22Burrell%2C+Brian+C%2E%22">Burrell, Brian C.</searchLink><relatesTo>2</relatesTo><i> bburrell@rvanderson.com</i>
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  Data: <searchLink fieldCode="JN" term="%22Cold+Regions+Science+%26+Technology%22">Cold Regions Science & Technology</searchLink>. Jan2010, Vol. 60 Issue 1, p29-39. 11p.
– Name: Subject
  Label: Subjects
  Group: Su
  Data: <searchLink fieldCode="DE" term="%22Hydraulic+control+systems%22">Hydraulic control systems</searchLink><br /><searchLink fieldCode="DE" term="%22Surface+roughness%22">Surface roughness</searchLink><br /><searchLink fieldCode="DE" term="%22Ice%22">Ice</searchLink><br /><searchLink fieldCode="DE" term="%22Discrete+choice+models%22">Discrete choice models</searchLink><br /><searchLink fieldCode="DE" term="%22Case+studies%22">Case studies</searchLink><br /><searchLink fieldCode="DE" term="%22Bathymetric+maps%22">Bathymetric maps</searchLink><br /><searchLink fieldCode="DE" term="%22Sensitivity+analysis%22">Sensitivity analysis</searchLink>
– Name: SubjectGeographic
  Label: Geographic Terms
  Group: Su
  Data: <searchLink fieldCode="DE" term="%22Matapédia+River+%28Québec%29%22">Matapédia River (Québec)</searchLink><br /><searchLink fieldCode="DE" term="%22Québec+%28Province%29%22">Québec (Province)</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Abstract: During the 1994 and 1995 spring breakup events, ice jams were formed on the lower Matapedia River and remained in place long enough to permit collection of detailed field data on jam thickness as well as on water surface elevations. Together with bathymetric data that were obtained in the following summers, the spring measurements form one of the most complete ice-jam data sets that have been obtained to date. This allowed examination of how well current understanding of the hydromechanics of ice jams, incorporated in a numerical model, can describe the results of the measurements. The availability of jam thickness data was particularly advantageous because it removed the ambiguity associated with model calibrations that are solely based on water level measurements. With suitable choice of the model parameters, the model reproduced the measured water level profiles of the jam very closely, while providing reasonable simulations of jam thickness. The selected values of the model parameters were consistent with values established by previous applications on other rivers, and almost identical between the two Matapedia jams, despite contrasts in jam severity and river flow. Model sensitivity was explored using the more complete 1995 data set and found to be moderate. The detail of the available data also made it possible to scrutinize hydraulic resistance characteristics of flows underneath ice jams, and confirm earlier formulations specifically designed to address extreme-roughness conditions. [Copyright &y& Elsevier]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Cold Regions Science & Technology 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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        Value: 10.1016/j.coldregions.2009.05.014
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      – Code: eng
        Text: English
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      Pagination:
        PageCount: 11
        StartPage: 29
    Subjects:
      – SubjectFull: Hydraulic control systems
        Type: general
      – SubjectFull: Surface roughness
        Type: general
      – SubjectFull: Ice
        Type: general
      – SubjectFull: Discrete choice models
        Type: general
      – SubjectFull: Case studies
        Type: general
      – SubjectFull: Bathymetric maps
        Type: general
      – SubjectFull: Sensitivity analysis
        Type: general
      – SubjectFull: Matapédia River (Québec)
        Type: general
      – SubjectFull: Québec (Province)
        Type: general
    Titles:
      – TitleFull: Ice-jam model testing: Matapedia River case studies, 1994 and 1995
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              Text: Jan2010
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              Y: 2010
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