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Atmospheric Measurement Techniques An interactive open-access journal of the European Geosciences Union
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https://doi.org/10.5194/amt-2020-83
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/amt-2020-83
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

  25 May 2020

25 May 2020

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A revised version of this preprint was accepted for the journal AMT and is expected to appear here in due course.

Interannual and seasonal variations in aerosol optical depth of the atmosphere in two regions of Spitsbergen Archipelago (2002–2018)

Dmitry M. Kabanov1, Christoph Ritter2, and Sergey M. Sakerin1 Dmitry M. Kabanov et al.
  • 1V.E. Zuev Institute of Atmospheric Optics, Siberian Branch, Russian Academy of Sciences, Academician Zuev Square 1, Tomsk, Russia
  • 2Alfred Wegener Institute for Polar and Marine Research, 14473 Potsdam, Germany

Abstract. In this work hourly averaged sun photometer data from the sites Barentsburg and Ny-Ålesund, both located in Spitsbergen in the European Arctic, are compared. Our data set comprises the years 2011 to 2017. We found for more turbid periods (aerosol optical depth τ0.5 > 0.1) that typically Barentsburg is more polluted than Ny-Ålesund, especially in the short wave spectrum. However, the diurnal variation of AOD is highly correlated. Next, τ was divided into a fine and coarse mode. It was found that generally the fine mode aerosol optical depth dominates and also shows a larger interannual as inner annual variation. Tau fine τf is in fact larger in spring during the Arctic Haze period. Overall the aerosol optical depth seems to decrease, although this is not statistically significant.

Dmitry M. Kabanov et al.

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Dmitry M. Kabanov et al.

Dmitry M. Kabanov et al.

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Latest update: 24 Sep 2020
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Short summary
Long-term photometer measurements of two sites in the European Arctic on the archipelago of Spitsbergen, Barentsburg and Ny-Alesund are presented and compared. We find slightly higher aerosol optical depths at Barentsburg and attribute this to a higher concentration of small particles.
Long-term photometer measurements of two sites in the European Arctic on the archipelago of...
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