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    <marc:controlfield tag="001">9.896912</marc:controlfield>
    <marc:controlfield tag="003">CaOODSP</marc:controlfield>
    <marc:controlfield tag="005">20221107174442</marc:controlfield>
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    <marc:controlfield tag="007">cr |n|||||||||</marc:controlfield>
    <marc:controlfield tag="008">210225e198406##bccdo   ob   f000 0 eng d</marc:controlfield>
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      <marc:subfield code="a">CaOODSP</marc:subfield>
      <marc:subfield code="b">eng</marc:subfield>
      <marc:subfield code="e">rda</marc:subfield>
      <marc:subfield code="c">CaOODSP</marc:subfield>
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    <marc:datafield tag="041" ind1=" " ind2=" ">
      <marc:subfield code="a">eng</marc:subfield>
      <marc:subfield code="b">eng</marc:subfield>
      <marc:subfield code="b">fre</marc:subfield>
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      <marc:subfield code="a">n-cn-yk</marc:subfield>
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      <marc:subfield code="a">En36-538/4E-PDF</marc:subfield>
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    <marc:datafield tag="100" ind1="1" ind2=" ">
      <marc:subfield code="a">Gerard, R., </marc:subfield>
      <marc:subfield code="e">author.</marc:subfield>
    </marc:datafield>
    <marc:datafield tag="245" ind1="1" ind2="0">
      <marc:subfield code="a">Yukon River freeze-up and break-up study / </marc:subfield>
      <marc:subfield code="c">synthesis prepared by R. Gerard, PhD., P.Eng. ; for Inland Waters Directorate, Environment Canada.</marc:subfield>
    </marc:datafield>
    <marc:datafield tag="264" ind1=" " ind2="1">
      <marc:subfield code="a">Vancouver, B.C. : </marc:subfield>
      <marc:subfield code="b">Inland Waters Directorate, Pacific and Yukon Region, </marc:subfield>
      <marc:subfield code="c">June 1984.</marc:subfield>
    </marc:datafield>
    <marc:datafield tag="300" ind1=" " ind2=" ">
      <marc:subfield code="a">1 online resource (vi, 110 pages) : </marc:subfield>
      <marc:subfield code="b">charts, 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:datafield tag="337" ind1=" " ind2=" ">
      <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:datafield tag="338" ind1=" " ind2=" ">
      <marc:subfield code="a">online resource</marc:subfield>
      <marc:subfield code="b">cr</marc:subfield>
      <marc:subfield code="2">rdacarrier</marc:subfield>
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    <marc:datafield tag="490" ind1="0" ind2=" ">
      <marc:subfield code="a">Yukon River Basin Study hydrology report ; </marc:subfield>
      <marc:subfield code="v">number 4</marc:subfield>
    </marc:datafield>
    <marc:datafield tag="500" ind1=" " ind2=" ">
      <marc:subfield code="a">Digitized edition from print [produced by Environment and Climate Change Canada].</marc:subfield>
    </marc:datafield>
    <marc:datafield tag="500" ind1=" " ind2=" ">
      <marc:subfield code="a">At head of title: Yukon River Basin Committee.</marc:subfield>
    </marc:datafield>
    <marc:datafield tag="504" ind1=" " ind2=" ">
      <marc:subfield code="a">Includes bibliographical references (pages 38-39).</marc:subfield>
    </marc:datafield>
    <marc:datafield tag="520" ind1="3" ind2=" ">
      <marc:subfield code="a">"This report describes results of "Yukon River Freeze-up and Break-up Studies" carried out jointly by Canada, Yukon and British Columbia as part of the Yukon River Basin Study. The report discusses general characteristics of the Yukon River basin as they relate to the river ice regime, describes the salient ice processes characteristic of the area, reviews historical information on the ice regime and presents the findings of surveys that were undertaken during 1982 and 1983 to monitor the break-up and freeze-up conditions between Lake Laberge and the Yukon/Alaska border. It also discusses generally the effects on the ice regime that might occur as a result of future river regulation for hydro-electric generation purposes"--Abstract.</marc:subfield>
    </marc:datafield>
    <marc:datafield tag="546" ind1=" " ind2=" ">
      <marc:subfield code="a">Includes abstract in French.</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">Yukon River (Yukon and Alaska)</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">Yukon, Fleuve (Yukon et Alaska)</marc:subfield>
    </marc:datafield>
    <marc:datafield tag="651" ind1=" " ind2="0">
      <marc:subfield code="a">Yukon River (Yukon and Alaska)</marc:subfield>
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    <marc:datafield tag="651" ind1=" " ind2="6">
      <marc:subfield code="a">Yukon, Fleuve (Yukon et Alaska)</marc:subfield>
    </marc:datafield>
    <marc:datafield tag="710" ind1="1" ind2=" ">
      <marc:subfield code="a">Canada. </marc:subfield>
      <marc:subfield code="b">Inland Waters Directorate. </marc:subfield>
      <marc:subfield code="b">Pacific and Yukon Region, </marc:subfield>
      <marc:subfield code="e">issuing body.</marc:subfield>
    </marc:datafield>
    <marc:datafield tag="710" ind1="1" ind2=" ">
      <marc:subfield code="a">Canada.</marc:subfield>
      <marc:subfield code="b">Environment Canada. </marc:subfield>
      <marc:subfield code="b">Environmental Conservation, </marc:subfield>
      <marc:subfield code="e">issuing body.</marc:subfield>
    </marc:datafield>
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      <marc:subfield code="a">Yukon River Basin Committee‏, </marc:subfield>
      <marc:subfield code="e">issuing body.</marc:subfield>
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      <marc:subfield code="q">PDF</marc:subfield>
      <marc:subfield code="s">7.71 MB</marc:subfield>
      <marc:subfield code="u">https://publications.gc.ca/collections/collection_2021/eccc/En36-538-4-eng.pdf</marc:subfield>
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