Journal article Open Access
Giovanni Piccardi; S. Vermigli; Emiliano Castellano; Roberto Udisti; Silvia Becagli; Rita Traversi
<?xml version='1.0' encoding='UTF-8'?> <record xmlns="http://www.loc.gov/MARC21/slim"> <leader>00000nam##2200000uu#4500</leader> <datafield tag="650" ind1="1" ind2="7"> <subfield code="a">cc-by</subfield> <subfield code="2">opendefinition.org</subfield> </datafield> <datafield tag="653" ind1=" " ind2=" "> <subfield code="a">NEANIAS Atmospheric Research Community</subfield> </datafield> <datafield tag="653" ind1=" " ind2=" "> <subfield code="a">Earth-Surface Processes</subfield> </datafield> <datafield tag="520" ind1=" " ind2=" "> <subfield code="a">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.</subfield> </datafield> <datafield tag="980" ind1=" " ind2=" "> <subfield code="a">publication</subfield> <subfield code="b">article</subfield> </datafield> <datafield tag="980" ind1=" " ind2=" "> <subfield code="a">user-itmirror</subfield> </datafield> <datafield tag="260" ind1=" " ind2=" "> <subfield code="c">1999-01-01</subfield> </datafield> <controlfield tag="005">20230927145051.0</controlfield> <datafield tag="041" ind1=" " ind2=" "> <subfield code="a">eng</subfield> </datafield> <controlfield tag="001">121975</controlfield> <datafield tag="700" ind1=" " ind2=" "> <subfield code="a">S. Vermigli</subfield> </datafield> <datafield tag="700" ind1=" " ind2=" "> <subfield code="a">Emiliano Castellano</subfield> </datafield> <datafield tag="700" ind1=" " ind2=" "> <subfield code="a">Roberto Udisti</subfield> </datafield> <datafield tag="700" ind1=" " ind2=" "> <subfield code="a">Silvia Becagli</subfield> </datafield> <datafield tag="700" ind1=" " ind2=" "> <subfield code="a">Rita Traversi</subfield> </datafield> <datafield tag="542" ind1=" " ind2=" "> <subfield code="l">open</subfield> </datafield> <datafield tag="100" ind1=" " ind2=" "> <subfield code="a">Giovanni Piccardi</subfield> </datafield> <datafield tag="245" ind1=" " ind2=" "> <subfield code="a">Sea-spray and marine biogenic seasonal contribution to snow composition at Terra Nova Bay, Antarctica</subfield> </datafield> <datafield tag="856" ind1="4" ind2=" "> <subfield code="s">189647</subfield> <subfield code="u">https://www.openaccessrepository.it/record/121975/files/fulltext.pdf</subfield> <subfield code="z">md5:bbf96b908466bf1ecfa718d11e7f8e4a</subfield> </datafield> <datafield tag="540" ind1=" " ind2=" "> <subfield code="a">Other (Open)</subfield> </datafield> <datafield tag="024" ind1=" " ind2=" "> <subfield code="a">10.3189/172756499781820923</subfield> <subfield code="2">doi</subfield> </datafield> </record>
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