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      <marc:subfield code="a">Piggott, Andrew R. </marc:subfield>
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      <marc:subfield code="q">(Andrew Robert)</marc:subfield>
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      <marc:subfield code="a">Determination of stability criteria for a semi-analytical model of solute transport / </marc:subfield>
      <marc:subfield code="c">by A. Piggott &amp; K. Novakowski.</marc:subfield>
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      <marc:subfield code="a">Digitized edition from print [produced by Environment and Climate Change Canada].</marc:subfield>
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      <marc:subfield code="a">Includes bibliographical references (pages 7-8).</marc:subfield>
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      <marc:subfield code="a">"Stability criteria are determined for RADT, a semi-analytical model of solute transport during divergent radial tracer tests. These stability criteria differentiate the conditions where RADT successfully returns solute concentration from the conditions that lead to the failure of the model. The criteria are determined in an experimental manner by relating the parameters that form input to RADT to the observed conditions at failure. Two criteria are obtained where both reflect advection and dispersion of the solute and assume critical values that are regulated by the input parameters"--Abstract, page 1.</marc:subfield>
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      <marc:subfield code="a">Novakowski, Kent S., </marc:subfield>
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      <marc:subfield code="a">National Water Research Institute (Canada)</marc:subfield>
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