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On turbulence characteristics at Ny-Ålesund–Svalbard

  • Environmental Changes in Arctic
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Abstract

The unique data set collected at the climate change tower (CCT) installed in the Arctic site of Ny-Ålesund, Svalbard, allows to investigate the peculiar features of the high-latitude planetary boundary layer under different stability conditions. The analysis uses four conventional Young anemometers and Väisäla thermo-hygrometers, alternated by three lined up sonic anemometers, installed on the CCT between 2 and 33.4 m a.g.l. The data are averaged over 10 min. The results presented here highlight the problematic behavior of the vertical mixing in quasi-neutral, low-wind conditions and the properties of the similarity scaling in unstable conditions, coupled with the evaluation of the scaled second-order moments of velocity and temperature. As far as stable cases are considered, the vertical profiles of the mean velocity and of the momentum and heat fluxes are shown, for high- and low-wind conditions and for traditional and upside–down cases, respectively.

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Acknowledgments

This research was partially funded by the”Programma Bilaterale di Grande Rilevanza” of the Italian Ministry of Foreign Affairs and International and Cooperation (MAECI) in the frame of scientific agreement between the Italy–Korea for the years 2013-2015. A special thank is due to Dr. Taejin Choi and the scientist of KOPRI, for the useful discussion. The authors wish also to thank the staff of Arctic station Dirigibile Italia of the Kings Bay AS as well as the collegues from AWI, NPI for the support provided during the field activity in Ny-Ålesund.

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Authors and Affiliations

  1. CNR, Institute of Atmospheric Sciences and Climate, Bologna and Roma, Italy

    Francesco Tampieri, Angelo Pietro Viola, Mauro Mazzola & Armando Pelliccioni

  2. INAIL, DiMEILA, Monteporzio Catone, Italy

    Armando Pelliccioni

Authors
  1. Francesco Tampieri
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  2. Angelo Pietro Viola
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  3. Mauro Mazzola
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  4. Armando Pelliccioni
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Corresponding author

Correspondence to Angelo Pietro Viola.

Additional information

This peer-reviewed article is a result of the multi and interdisciplinary research activities based at the Arctic Station "Dirigibile Italia", coordinated by the " Dipartimento Scienze del Sistema Terra e Tecnologie per l'Ambiente" of the National Council of Research.

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Tampieri, F., Viola, A.P., Mazzola, M. et al. On turbulence characteristics at Ny-Ålesund–Svalbard. Rend. Fis. Acc. Lincei 27 (Suppl 1), 19–24 (2016). https://doi.org/10.1007/s12210-016-0526-6

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  • DOI: https://doi.org/10.1007/s12210-016-0526-6

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