Preprints
https://doi.org/10.5194/amtd-6-10761-2013
https://doi.org/10.5194/amtd-6-10761-2013

  13 Dec 2013

13 Dec 2013

Review status: this preprint has been withdrawn by the authors.

Aerosol optical properties in Northern Norway and Svalbard

Y.-C. Chen1, B. Hamre1, Ø. Frette1, S. Blindheim2, K. Stebel3, P. Sobolewski4, C. Toledano5, and J. J. Stamnes1 Y.-C. Chen et al.
  • 1Department of Physics and Technology, University of Bergen, P.O. Box 7803, 5020 Bergen, Norway
  • 2Arctic Lidar Observatory for Middle Atmosphere Research, P.O. Box 54, 8483 Andenes, Norway
  • 3Norwegian Institute for Air Research, P.O. Box 100, 2027 Kjeller, Norway
  • 4Central Geophyscical Observatory at Belsk, Institute of Geophysics PAS, Ksiecia Janusza 64 Street, 01-452 Warsaw, Poland
  • 5Group of Atmospheric Optics, University of Valladolid, Paseo de Belén 7, 47011 – Valladolid, Spain

Abstract. We present comparisons between estimates of the aerosol optical thickness and the Ångström exponent in Northern Norway and Svalbard based on data from AERONET (Aerosol Robotic Network) stations at Andenes (69.28° N, 16.01° E, 379 m altitude) and Hornsund (77.00° N, 15.56° E, 10 m altitude) for the period 2008–2011. The four-year annual mean values for the aerosol optical thickness at 500 nm τ(500) at Andenes and Hornsund both were 0.10. At Hornsund, there was less variation of the monthly mean value of τ(500) than at Andenes. The annual mean values of the Ångström exponent α at Andenes and Hornsund were 1.25 and 1.37, respectively. At Andenes and Hornsund α was found to be larger than 1.1 in 64% and 86% of the observations, respectively, indicating that fine-mode particles were dominating at both sites. Both sites had a similar seasonal variation of the aerosol size distribution although one site is in an arctic area while the other site is in a sub-arctic area.

This preprint has been withdrawn.

Y.-C. Chen et al.

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Y.-C. Chen et al.

Y.-C. Chen et al.

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This preprint has been withdrawn.