January 1, 1999 Journal article Open Access

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

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{
  "DOI": "10.3189/172756499781820923", 
  "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.", 
  "author": [
    {
      "family": "Giovanni Piccardi"
    }, 
    {
      "family": "S. Vermigli"
    }, 
    {
      "family": "Emiliano Castellano"
    }, 
    {
      "family": "Roberto Udisti"
    }, 
    {
      "family": "Silvia Becagli"
    }, 
    {
      "family": "Rita Traversi"
    }
  ], 
  "id": "121975", 
  "issued": {
    "date-parts": [
      [
        1999, 
        1, 
        1
      ]
    ]
  }, 
  "language": "eng", 
  "note": "", 
  "title": "Sea-spray and marine biogenic seasonal contribution to snow composition at Terra Nova Bay, Antarctica", 
  "type": "article-journal"
}