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      <marc:subfield code="a">Andres, David D. </marc:subfield>
      <marc:subfield code="q">(David Donald), </marc:subfield>
      <marc:subfield code="d">1952- </marc:subfield>
      <marc:subfield code="e">author.</marc:subfield>
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    <marc:datafield tag="245" ind1="1" ind2="4">
      <marc:subfield code="a">The effects of flow regulation on freeze-up regime :  </marc:subfield>
      <marc:subfield code="b">Peace River, Taylor to the Slave River / </marc:subfield>
      <marc:subfield code="c">prepared for the Northern River Basins Study under project 1423-C1 by D.D. Andres.</marc:subfield>
    </marc:datafield>
    <marc:datafield tag="264" ind1=" " ind2="1">
      <marc:subfield code="a">Edmonton, Alberta : </marc:subfield>
      <marc:subfield code="b">Northern River Basins Study, </marc:subfield>
      <marc:subfield code="c">February 1996.</marc:subfield>
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    <marc:datafield tag="264" ind1=" " ind2="4">
      <marc:subfield code="c">©1996</marc:subfield>
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      <marc:subfield code="a">1 online resource (viii, 82 pages) : </marc:subfield>
      <marc:subfield code="b">charts, maps, photographs.</marc:subfield>
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      <marc:subfield code="a">text</marc:subfield>
      <marc:subfield code="b">txt</marc:subfield>
      <marc:subfield code="2">rdacontent</marc:subfield>
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      <marc:subfield code="a">computer</marc:subfield>
      <marc:subfield code="b">c</marc:subfield>
      <marc:subfield code="2">rdamedia</marc:subfield>
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      <marc:subfield code="a">online resource</marc:subfield>
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      <marc:subfield code="a">Northern River Basins Study project report, </marc:subfield>
      <marc:subfield code="y">1192-3571 ; </marc:subfield>
      <marc:subfield code="v">no. 122</marc:subfield>
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    <marc:datafield tag="500" ind1=" " ind2=" ">
      <marc:subfield code="a">Digitized edition from print [produced by Environment and Climate Change Canada].</marc:subfield>
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    <marc:datafield tag="504" ind1=" " ind2=" ">
      <marc:subfield code="a">Includes bibliographical references (pages 45-46).</marc:subfield>
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    <marc:datafield tag="520" ind1=" " ind2=" ">
      <marc:subfield code="a">"This report has reviewed the processes by which an ice cover forms on large regulated and non- regulated rivers. Explicit equations and algorithms have been presented that quantify these processes. Work that had been undertaken previously on the Peace River was also described to provide a framework for the calibration of these algorithms for the Peace River in both its regulated and non-regulated condition. The significant theoretical advances that were made include the development of a procedure to forecast freeze-up on a non-regulated river and the derivation of a stability relationship that uses both air temperature and discharge to determine whether a juxtaposed or consolidated ice cover will form. The latter development is important to characterize the type of ice cover that will occur on the Peace River under regulated conditions"--Report summary.</marc:subfield>
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      <marc:subfield code="a">Issued also in print format.</marc:subfield>
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    <marc:datafield tag="650" ind1=" " ind2="0">
      <marc:subfield code="a">Hydraulic measurements</marc:subfield>
      <marc:subfield code="z">Peace River (B.C. and Alta.)</marc:subfield>
    </marc:datafield>
    <marc:datafield tag="650" ind1=" " ind2="0">
      <marc:subfield code="a">Hydraulic measurements</marc:subfield>
      <marc:subfield code="z">Slave River (Alta. and N.W.T.)</marc:subfield>
    </marc:datafield>
    <marc:datafield tag="650" ind1=" " ind2="0">
      <marc:subfield code="a">Ice on rivers, lakes, etc.</marc:subfield>
      <marc:subfield code="z">Peace River (B.C. and Alta.)</marc:subfield>
    </marc:datafield>
    <marc:datafield tag="650" ind1=" " ind2="0">
      <marc:subfield code="a">Ice on rivers, lakes, etc.</marc:subfield>
      <marc:subfield code="z">Slave River (Alta. and N.W.T.)</marc:subfield>
    </marc:datafield>
    <marc:datafield tag="650" ind1=" " ind2="6">
      <marc:subfield code="a">Mesures hydrodynamiques</marc:subfield>
      <marc:subfield code="z">Paix, Rivière de la (C.-B. et Alb.)</marc:subfield>
    </marc:datafield>
    <marc:datafield tag="650" ind1=" " ind2="6">
      <marc:subfield code="a">Mesures hydrodynamiques</marc:subfield>
      <marc:subfield code="z">Esclaves, Rivière des (Alb. et T.N.-O.)</marc:subfield>
    </marc:datafield>
    <marc:datafield tag="650" ind1=" " ind2="6">
      <marc:subfield code="a">Glace sur les cours d'eau, lacs, etc.</marc:subfield>
      <marc:subfield code="z">Paix, Rivière de la (C.-B. et Alb.)</marc:subfield>
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    <marc:datafield tag="650" ind1=" " ind2="6">
      <marc:subfield code="a">Glace sur les cours d'eau, lacs, etc.</marc:subfield>
      <marc:subfield code="z">Esclaves, Rivière des (Alb. et T.N.-O.)</marc:subfield>
    </marc:datafield>
    <marc:datafield tag="710" ind1="2" ind2=" ">
      <marc:subfield code="a">Northern River Basins Study (Canada)‏, </marc:subfield>
      <marc:subfield code="e">issuing body.</marc:subfield>
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    <marc:datafield tag="776" ind1="0" ind2="#">
      <marc:subfield code="t">The effects of flow regulation on freeze-up regime : </marc:subfield>
      <marc:subfield code="w">(CaOODSP)9.612975</marc:subfield>
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    <marc:datafield tag="830" ind1="#" ind2="0">
      <marc:subfield code="a">Northern River Basins Study project report ;</marc:subfield>
      <marc:subfield code="v">no. 122.</marc:subfield>
      <marc:subfield code="w">(CaOODSP)9.883506</marc:subfield>
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      <marc:subfield code="q">PDF</marc:subfield>
      <marc:subfield code="s">8921 KB</marc:subfield>
      <marc:subfield code="u">https://publications.gc.ca/collections/collection_2025/eccc/r71/R71-49-3-122-eng.pdf</marc:subfield>
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