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| Titel |
Mineral dust variability in central West Antarctica associated with ozone depletion |
| VerfasserIn |
M. Cataldo, H. Evangelista, J. C. Simões, R. H. M. Godoi, I. Simmonds, M. H. Hollanda, I. Wainer, F. Aquino, R. Grieken |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1680-7316
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| Digitales Dokument |
URL |
| Erschienen |
In: Atmospheric Chemistry and Physics ; 13, no. 4 ; Nr. 13, no. 4 (2013-02-25), S.2165-2175 |
| Datensatznummer |
250018430
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| Publikation (Nr.) |
 copernicus.org/acp-13-2165-2013.pdf |
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| Zusammenfassung |
| We present here data of mineral dust variability retrieved from an ice core
of the central West Antarctic, spanning the last five decades. Main evidence
provided by the geochemical analysis is that northerly air mass incursions
to the coring site, tracked by insoluble dust microparticles, have declined
over the past 50 yr. This result contrasts with dust records from ice
cores reported to the coastal West Antarctic that show increases since
mid-20th century. We attribute this difference to regional climatic
changes due to the ozone depletion and its implications to westerly winds.
We found that the diameters of insoluble microparticles in the central West
Antarctica ice core are significantly correlated with cyclone depth (energy)
and wind intensity around Antarctica. |
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