<?xml version="1.0" encoding="UTF-8"?><marc:collection xmlns:marc="http://www.loc.gov/MARC21/slim">
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    <marc:controlfield tag="001">9.948079</marc:controlfield>
    <marc:controlfield tag="003">CaOODSP</marc:controlfield>
    <marc:controlfield tag="005">20250217112226</marc:controlfield>
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      <marc:subfield code="b">eng</marc:subfield>
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      <marc:subfield code="a">eng</marc:subfield>
      <marc:subfield code="b">eng</marc:subfield>
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      <marc:subfield code="a">Vupputuri, R. K. R., </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 effect of increased atmospheric CO₂ on stratospheric temperature structure and ozone distribution investigated in a 2-D time dependent model / </marc:subfield>
      <marc:subfield code="c">by R. K. R. Vupputuri.</marc:subfield>
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    <marc:datafield tag="264" ind1=" " ind2="1">
      <marc:subfield code="a">Downsview, Ontario : </marc:subfield>
      <marc:subfield code="b">Atmospheric Environment Service, Climatological Services Division, </marc:subfield>
      <marc:subfield code="c">1981.</marc:subfield>
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      <marc:subfield code="a">1 online resource (15 pages) : </marc:subfield>
      <marc:subfield code="b">graphs.</marc:subfield>
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      <marc:subfield code="a">text</marc:subfield>
      <marc:subfield code="b">txt</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:datafield tag="490" ind1="1" ind2=" ">
      <marc:subfield code="a">Canadian Climate Centre report ; </marc:subfield>
      <marc:subfield code="v">no. 81-7</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">"This report has received only limited circulation because of the special nature of the project. However, reference is permitted if the words "Unpublished manuscript" are made part of the bibliographic entry, in accordance with accepted practice."</marc:subfield>
    </marc:datafield>
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      <marc:subfield code="a">Includes bibliographical references (page 8).</marc:subfield>
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    <marc:datafield tag="520" ind1="3" ind2=" ">
      <marc:subfield code="a">"Attempts to determine the possible influence of enhanced atmospheric CO₂ on stratospheric ozone have been relatively few. This report presents some results on the effect of doubling the atmospheric CO₂ on stratospheric temperature structure and ozone distribution based on 2-D time dependent model which takes into account the major interactions between radiation, chemistry and dynamics"--Abstract.</marc:subfield>
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      <marc:subfield code="a">Includes abstract in English and French.</marc:subfield>
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      <marc:subfield code="a">Ozone layer</marc:subfield>
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      <marc:subfield code="a">Atmospheric carbon dioxide</marc:subfield>
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    <marc:datafield tag="650" ind1=" " ind2="0">
      <marc:subfield code="a">Upper air temperature</marc:subfield>
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      <marc:subfield code="a">Couche d'ozone</marc:subfield>
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      <marc:subfield code="a">Gaz carbonique atmosphérique</marc:subfield>
      <marc:subfield code="x">Modèles mathématiques.</marc:subfield>
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    <marc:datafield tag="650" ind1=" " ind2="6">
      <marc:subfield code="a">Température en altitude</marc:subfield>
      <marc:subfield code="x">Modèles mathématiques.</marc:subfield>
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      <marc:subfield code="a">Canadian Climate Centre, </marc:subfield>
      <marc:subfield code="e">issuing body.</marc:subfield>
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    <marc:datafield tag="830" ind1="#" ind2="0">
      <marc:subfield code="a">Canadian Climate Centre report ;</marc:subfield>
      <marc:subfield code="v">no. 81-7.</marc:subfield>
      <marc:subfield code="w">(CaOODSP)9.934183</marc:subfield>
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      <marc:subfield code="q">PDF</marc:subfield>
      <marc:subfield code="s">20.0 MB</marc:subfield>
      <marc:subfield code="u">https://publications.gc.ca/collections/collection_2025/eccc/en57/En57-55-81-7-eng.pdf</marc:subfield>
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