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Aerosols in polar regions: a historical overview based on optical depth and in situ observations
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dc.contributor.authorTomasi, C.es_ES
dc.contributor.authorVitale, V.es_ES
dc.contributor.authorLupi, A.es_ES
dc.contributor.authorDi Carmine, C.es_ES
dc.contributor.authorCampanelli, Monicaes_ES
dc.contributor.authorHerber, A.es_ES
dc.contributor.authorTreffeisen, R.es_ES
dc.contributor.authorStone, R. S.es_ES
dc.contributor.authorAndrews, Elisabethes_ES
dc.contributor.authorSharma, Sangeetaes_ES
dc.contributor.authorRadionov, V.es_ES
dc.contributor.authorHoyningen-Huene, W. vones_ES
dc.contributor.authorStebel, K.es_ES
dc.contributor.authorHansen, G.es_ES
dc.contributor.authorMyhre, Cathrine Lundes_ES
dc.contributor.authorWehrli, C. J.es_ES
dc.contributor.authorAaltonen, V.es_ES
dc.contributor.authorLihavainen, Heikkies_ES
dc.contributor.authorVirkkula, A.es_ES
dc.contributor.authorHillamo, R.es_ES
dc.contributor.authorStröm, J.es_ES
dc.contributor.authorToledano, Carloses_ES
dc.contributor.authorCachorro, Victoria E.es_ES
dc.contributor.authorOrtiz de Galisteo, José Pabloes_ES
dc.contributor.authorFrutos, Ángel M. dees_ES
dc.contributor.authorBlindheim, S.es_ES
dc.contributor.authorFrioud, M.es_ES
dc.contributor.authorGausa, M.es_ES
dc.contributor.authorZielinski, T.es_ES
dc.contributor.authorPetelski, T.es_ES
dc.contributor.authorYamanouchi, T.es_ES
dc.identifier.citationJournal of Geophysical Research: Atmospheres. 2007, 112(D16), p. 1-28es_ES
dc.description.abstract[1] Large sets of filtered actinometer, filtered pyrheliometer and Sun photometer measurements have been carried out over the past 30 years by various groups at different Arctic and Antarctic sites and for different time periods. They were examined to estimate ensemble average, long-term trends of the summer background aerosol optical depth AOD(500 nm) in the polar regions (omitting the data influenced by Arctic haze and volcanic eruptions). The trend for the Arctic was estimated to be between −1.6% and −2.0% per year over 30 years, depending on location. No significant trend was observed for Antarctica. The time patterns of AOD(500 nm) and Ångström's parameters α and β measured with Sun photometers during the last 20 years at various Arctic and Antarctic sites are also presented. They give a measure of the large variations of these parameters due to El Chichon, Pinatubo, and Cerro Hudson volcanic particles, Arctic haze episodes most frequent in winter and spring, and the transport of Asian dust and boreal smokes to the Arctic region (...)es_ES
dc.description.sponsorshipThis research was supported by the Programma Nazionale di Ricerche in Antartide (PNRA) and developed as a part of Subproject 2006/6.01: ‘‘POLAR-AOD: a network to characterize the means, variability and trends of the climate-forcing properties of aerosols in polar regions. GOA-UVA thanks the Spanish CICyT for supporting project CGL2006-26188-E/CLI and the EU for funding various proposals (the ALOMAR ARI and eARI (Enhanced Access to Research Infrastructure) Projects and the EU’s 5th and 6th Framework Programme (RITA-CT-2003-506208)).es_ES
dc.publisherAmerican Geophysical Uniones_ES
dc.subjectAerosol optical depthes_ES
dc.subjectPhotometer measurementses_ES
dc.subjectPolar aerosolses_ES
dc.subjectRadiative processeses_ES
dc.titleAerosols in polar regions: a historical overview based on optical depth and in situ observationses_ES
Appears in Collections:Artículos científicos 2005-2009

Meteorología polar

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