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      <marc:subfield code="a">Royer, G. M., </marc:subfield>
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      <marc:subfield code="a">The dielectric properties of ice, snow and water at microwave frequencies and the measurement of the thicknesses of ice and snow layers with radar / </marc:subfield>
      <marc:subfield code="c">by G.M. Royer.</marc:subfield>
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      <marc:subfield code="a">Ottawa : </marc:subfield>
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      <marc:subfield code="c">June 1973.</marc:subfield>
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      <marc:subfield code="a">CRC report ; </marc:subfield>
      <marc:subfield code="v">no. 1242</marc:subfield>
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      <marc:subfield code="a">Digitized edition from print [produced by Innovation, Science and Economic Development Canada].</marc:subfield>
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      <marc:subfield code="a">Includes bibliographical references (pages 31-32).</marc:subfield>
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      <marc:subfield code="a">"Investigations are made of (a) the dielectric properties, at microwave frequencies, of fresh water ice, snow and water and (b) the possibility of using radar to measure the thicknesses of naturally occurring fresh water ice and snow layers"--Abstract. page 1.</marc:subfield>
    </marc:datafield>
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      <marc:subfield code="a">Dielectrics.</marc:subfield>
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      <marc:subfield code="a">Ice on rivers, lakes, etc.</marc:subfield>
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      <marc:subfield code="a">Radar.</marc:subfield>
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      <marc:subfield code="a">Communications Research Centre (Canada), </marc:subfield>
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      <marc:subfield code="a">CRC report ;</marc:subfield>
      <marc:subfield code="v">no. 1242.</marc:subfield>
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      <marc:subfield code="u">https://publications.gc.ca/collections/collection_2020/isde-ised/Co24/Co24-3-7-1242-1973-eng.pdf</marc:subfield>
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