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UV measurements at Marambio and Ushuaia during 2000–2010
Title: UV measurements at Marambio and Ushuaia during 2000–2010
Authors: Lakkala, KaisaRedondas, Alberto ORCID RESEARCHERID Autor AEMETMeinander, OutiThölix, LauraHamari, BrittaAlmansa Rodríguez, Antonio FernandoCarreno, VirgilioGarcía Cabrera, Rosa Delia ORCID RESEARCHERID Torres, CarlosAutor AEMETDeferrari, GuillermoOchoa, HectorBernhard, GermarSánchez, RicardoLeeuw, Gerardus de
Keywords: Solar ultraviolet irradiance; Multichannel radiometers; Time series; UV measurements
Issue Date: 2018
Publisher: European Geosciences Union
Citation: Atmospheric Chemistry and Physics. 2017, 18(21), p. 16019-16031
Publisher version:
Abstract: Solar ultraviolet (UV) irradiances were measured with NILU-UV multichannel radiometers at Ushuaia (54◦ S) and Marambio (64◦ S) between 2000 and 2013. The measurements were part of the Antarctic NILU-UV network, which was started in cooperation between Spain, Argentina and Finland. The erythemally weighted UV irradiance time series of both stations were analysed for the first time. The quality assurance procedures included a travelling reference instrument to transfer the irradiance scale to the stations. The time series were homogenized and high quality measurements were available for the period 2000–2010. During this period UV indices of 11 or more were measured on 5 and 35 days at Marambio and Ushuaia, respectively. At Marambio, the peak daily maximum UV index of 12 and daily doses of around 7 kJ m−2 were measured in November 2007. The highest UV daily doses at both stations were typically around 6 kJ m−2 and occurred when the stations were inside the polar vortex, resulting in very low total ozone amount. At both stations, daily doses in late November could even exceed those in the summer. At Marambio, in some years, also daily doses in October can be as high as those during the summer. At Ushuaia, the peak daily maximum UV index of 13 was measured twice: in November 2003 and 2009. Also during those days, the station of Ushuaia was inside the polar vortex.
Sponsorship : The Academy of Finland has given financial support for this work through projects FARPOCC and SAARA. The MAR Project was financed by the National R+D Plan of the Spanish Ministry of Science and Technology (National Research Program in the Antarctic) under contract REN2000-0245-C02-01.
ISSN: 1680-7316
Appears in Collections:Artículos científicos 2015-2018

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