January 1, 1999 Journal article Open Access

Giovanni Piccardi; S. Vermigli; Emiliano Castellano; Roberto Udisti; Silvia Becagli; Rita Traversi

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  <identifier identifierType="URL">https://www.openaccessrepository.it/record/121975</identifier>
  <creators>
    <creator>
      <creatorName>Giovanni Piccardi</creatorName>
    </creator>
    <creator>
      <creatorName>S. Vermigli</creatorName>
    </creator>
    <creator>
      <creatorName>Emiliano Castellano</creatorName>
    </creator>
    <creator>
      <creatorName>Roberto Udisti</creatorName>
    </creator>
    <creator>
      <creatorName>Silvia Becagli</creatorName>
    </creator>
    <creator>
      <creatorName>Rita Traversi</creatorName>
    </creator>
  </creators>
  <titles>
    <title>Sea-spray and marine biogenic seasonal contribution to snow composition at Terra Nova Bay, Antarctica</title>
  </titles>
  <publisher>INFN Open Access Repository</publisher>
  <publicationYear>1999</publicationYear>
  <subjects>
    <subject>NEANIAS Atmospheric Research Community</subject>
    <subject>Earth-Surface Processes</subject>
  </subjects>
  <dates>
    <date dateType="Issued">1999-01-01</date>
  </dates>
  <language>en</language>
  <resourceType resourceTypeGeneral="Text">Journal article</resourceType>
  <alternateIdentifiers>
    <alternateIdentifier alternateIdentifierType="url">https://www.openaccessrepository.it/record/121975</alternateIdentifier>
  </alternateIdentifiers>
  <relatedIdentifiers>
    <relatedIdentifier relatedIdentifierType="DOI" relationType="IsIdenticalTo">10.3189/172756499781820923</relatedIdentifier>
    <relatedIdentifier relatedIdentifierType="URL" relationType="IsPartOf">https://www.openaccessrepository.it/communities/itmirror</relatedIdentifier>
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  <rightsList>
    <rights rightsURI="info:eu-repo/semantics/openAccess">Open Access</rights>
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  <descriptions>
    <description descriptionType="Abstract">AbstractPrimary and secondary marine aerosol contributions to snow composition in Terra Nova Bay Antarctica, were evaluated by chemical analysis of surface and snow-pit samples. A seasonal pattern of marine inputs, very clear for secondary aerosol (mainly constituted by nssSO4- and methanesulphonic acid (MSA) coming from phytoplanktonic activity) and less evident for sea spray (Na+, CF, Mg2+) was shown by snow-pit samples. Altitude and distance from the coast were found to be the main parameters affecting seasonal change in the composition of snow collected within about a 200 km radius of the Terra Nova Bay Italian base. Using Na+ as a sea-spray indicator and MSA as a biogenic marker, fractionating aerosol effects (which are altitude-induced) as well as source contributions for Cl- and nssSO42- were found. A nssSO42- /MSA ratio of 2.7 (w/w), indicating their distribution from the common source dimethylsulphide, was calculated from Analysis of fresh summer snow collected in horizontal and vertical transects in northern Victoria Land.</description>
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