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Ice nuclei in marine air: Biogenic particles or dust?

Burrows, S.M.; Hoose, C.; Pöschl, U.; Lawrence, M.G.

Abstract:
Ice nuclei impact clouds, but their sources and distribution in the atmosphere are still not well known. Particularly little attention has been paid to IN sources in marine environments, although evidence from field studies suggests that IN populations in remote marine regions may be dominated by primary biogenic particles associated with sea spray. In this exploratory model study, we aim to bring attention to this long-neglected topic and identify promising target regions for future field campaigns.We assess the likely global distribution of marine biogenic ice nuclei using a combination of historical observations, satellite data and model output. By comparing simulated marine biogenic immersion IN distributions and dust immersion IN distributions, we predict strong regional differences in the importance of marine biogenic IN relative to dust IN. Our analysis suggests that marine biogenic IN are most likely to play a dominant role in determining IN concentrations in near-surface-air over the Southern Ocean, so future field campaigns aimed at investigating marine biogenic IN should target that region. Climaterelated changes in the abundance and emission of biogenic marine IN could affect marine cloud properties, thereby introducing previously unconsidered feedbacks that influence the hydrological cycle and the Earth’s energy balance. ... mehr

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Verlagsausgabe §
DOI: 10.5445/IR/1000041600
Veröffentlicht am 18.04.2018
Originalveröffentlichung
DOI: 10.5194/acp-13-245-2013
Scopus
Zitationen: 102
Web of Science
Zitationen: 102
Coverbild
Zugehörige Institution(en) am KIT Fakultät für Physik (PHYSIK)
Institut für Meteorologie und Klimaforschung - Atmosphärische Aerosolforschung (IMK-AAF)
Publikationstyp Zeitschriftenaufsatz
Jahr 2013
Sprache Englisch
Identifikator ISSN: 1680-7316, 1680-7324
urn:nbn:de:swb:90-416006
KITopen-ID: 1000041600
HGF-Programm 12.01.02 (POF II, LK 01)
Erschienen in Atmospheric chemistry and physics
Band 13
Heft 1
Seiten 245-267
Nachgewiesen in Scopus
Web of Science
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