@prefix prodottidellaricerca: . @prefix istituto: . @prefix prodotto: . istituto:CDS028 prodottidellaricerca:prodotto prodotto:ID301440 . @prefix pubblicazioni: . @prefix unitaDiPersonaleInterno: . unitaDiPersonaleInterno:MATRICOLA14608 pubblicazioni:autoreCNRDi prodotto:ID301440 . unitaDiPersonaleInterno:MATRICOLA5104 pubblicazioni:autoreCNRDi prodotto:ID301440 . unitaDiPersonaleInterno:MATRICOLA12710 pubblicazioni:autoreCNRDi prodotto:ID301440 . @prefix modulo: . modulo:ID6305 prodottidellaricerca:prodotto prodotto:ID301440 . unitaDiPersonaleInterno:MATRICOLA11539 pubblicazioni:autoreCNRDi prodotto:ID301440 . @prefix rdf: . @prefix retescientifica: . prodotto:ID301440 rdf:type retescientifica:ProdottoDellaRicerca , prodotto:TIPO1101 . @prefix rdfs: . prodotto:ID301440 rdfs:label "Seasonality of halogen deposition in polar snow and ice (Articolo in rivista)"@en . @prefix xsd: . prodotto:ID301440 pubblicazioni:anno "2014-01-01T00:00:00+01:00"^^xsd:gYear ; pubblicazioni:doi "10.5194/acp-14-9613-2014"^^xsd:string . @prefix skos: . prodotto:ID301440 skos:altLabel "
Spolaor, Andrea; Vallelonga, Paul; Gabrieli, Jacopo; Martma, T\u00F5nu A.; Bj\u00F6rkman, Mats P.; Isaksson, Elisabeth; Cozzi, Giulio; Turetta, Clara; Kj\u00E6r, Helle Astrid; Curran, Mark A J; Moy, A. D.; Sch\u00F6nhardt, Anja; Blechschmidt, Anne Marlene; Burrows, John Philip; Plane, John M C; Barbante, Carlo (2014)
Seasonality of halogen deposition in polar snow and ice
in Atmospheric chemistry and physics (Print)
"^^rdf:HTML ; pubblicazioni:autori "Spolaor, Andrea; Vallelonga, Paul; Gabrieli, Jacopo; Martma, T\u00F5nu A.; Bj\u00F6rkman, Mats P.; Isaksson, Elisabeth; Cozzi, Giulio; Turetta, Clara; Kj\u00E6r, Helle Astrid; Curran, Mark A J; Moy, A. D.; Sch\u00F6nhardt, Anja; Blechschmidt, Anne Marlene; Burrows, John Philip; Plane, John M C; Barbante, Carlo"^^xsd:string ; pubblicazioni:paginaInizio "9613"^^xsd:string ; pubblicazioni:paginaFine "9622"^^xsd:string ; pubblicazioni:url "http://www.scopus.com/record/display.url?eid=2-s2.0-84907200794&origin=inward"^^xsd:string ; pubblicazioni:numeroVolume "14"^^xsd:string . @prefix ns11: . prodotto:ID301440 pubblicazioni:rivista ns11:ID59339 ; pubblicazioni:numeroFascicolo "18"^^xsd:string ; skos:note "Scopu"^^xsd:string ; pubblicazioni:affiliazioni "Universita Ca' Foscari Venezia; Niels Bohr Institute; Curtin University; Tallinn University of Technology; Norsk Polarinstitutt; Australian Antarctic Division; University of Tasmania; Universitat Bremen; University of Leeds; Goteborgs Universitet"^^xsd:string ; pubblicazioni:titolo "Seasonality of halogen deposition in polar snow and ice"^^xsd:string ; prodottidellaricerca:abstract "The atmospheric chemistry of iodine and bromine in Polar regions is of interest due to the key role of halogens in many atmospheric processes, particularly tropospheric ozone destruction. Bromine is emitted from the open ocean but is enriched above first-year sea ice during springtime bromine explosion events, whereas iodine emission is attributed to biological communities in the open ocean and hosted by sea ice. It has been previously demonstrated that bromine and iodine are present in Antarctic ice over glacial-interglacial cycles. Here we investigate seasonal variability of bromine and iodine in polar snow and ice, to evaluate their emission, transport and deposition in Antarctica and the Arctic and better understand potential links to sea ice. We find that bromine and iodine concentrations and Br enrichment (relative to sea salt content) in polar ice do vary seasonally in Arctic snow and Antarctic ice. Although seasonal variability in halogen emission sources is recorded by satellite-based observations of tropospheric halogen concentrations, seasonal patterns observed in snowpack are likely also influenced by photolysis-driven processes. Peaks of bromine concentration and Br enrichment in Arctic snow and Antarctic ice occur in spring and summer, when sunlight is present. A secondary bromine peak, observed at the end of summer, is attributed to bromine deposition at the end of the polar day. Iodine concentrations are largest in winter Antarctic ice strata, contrary to contemporary observations of summer maxima in iodine emissions. These findings support previous observations of iodine peaks in winter snow strata attributed to the absence of sunlight-driven photolytic re-mobilisation of iodine from surface snow. Further investigation is required to confirm these proposed mechanisms explaining observations of halogens in polar snow and ice, and to evaluate the extent to which halogens may be applied as sea ice proxies."@en ; prodottidellaricerca:prodottoDi modulo:ID6305 , istituto:CDS028 ; pubblicazioni:autoreCNR unitaDiPersonaleInterno:MATRICOLA12710 , unitaDiPersonaleInterno:MATRICOLA11539 , unitaDiPersonaleInterno:MATRICOLA5104 , unitaDiPersonaleInterno:MATRICOLA14608 . ns11:ID59339 pubblicazioni:rivistaDi prodotto:ID301440 .