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Maturilli, Marion; Kayser, Markus (2016): Homogenized radiosonde record at station Ny-Ålesund, Spitsbergen, 1993-2014 [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.845373, Supplement to: Maturilli, M; Kayser, M (2016): Arctic warming, moisture increase and circulation changes observed in the Ny-Ålesund homogenized radiosonde record. Theoretical and Applied Climatology, 17 pp, https://doi.org/10.1007/s00704-016-1864-0

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Abstract:
Radiosonde measurements obtained at the Arctic site Ny-Ålesund (78.9°N, 11.9°E), Svalbard, from 1993 to 2014 have been homogenized accounting for instrumentation discontinuities by correcting known errors in the manufacturer provided profiles. From the homogenized data record, the first Ny-Ålesund upper-air climatology of wind, temperature and humidity is presented, forming the background for the analysis of changes during the 22-year period. Particularly during the winter season, a strong increase in atmospheric temperature and humidity is observed, with a significant warming of the free troposphere in January and February up to 3 K per decade. This winter warming is even more pronounced in the boundary layer below 1 km, presumably amplified by mesoscale processes including e.g. orographic effects or the boundary layer capping inversion. Though the largest contribution to the increasing atmospheric water vapour column in winter originates from the lowermost 2 km, no increase in the contribution by specific humidity inversions is detected. Instead, we find an increase in the humidity content of the large-scale background humidity profiles. At the same time, the tropospheric flow in winter is found to occur less frequent from northerly directions and to the same amount more frequent from the South. We conclude that changes in the atmospheric circulation lead to an enhanced advection of warm and moist air from lower latitudes to the Svalbard region in the winter season, causing the warming and moistening of the atmospheric column above Ny-Ålesund, and link the observations to changes in the Arctic Oscillation.
Related to:
Maturilli, Marion; Kayser, Markus (2017): Homogenized radiosonde record at station Ny-Ålesund, Spitsbergen, 2015-2016 [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.875196
Project(s):
Arctic Amplification (AC3)
Meteorological Long-Term Observations @ AWI (AWI_Meteo)
Funding:
German Research Foundation (DFG), grant/award no. 268020496: TRR 172: ArctiC Amplification: Climate Relevant Atmospheric and SurfaCe Processes, and Feedback Mechanisms
Coverage:
Median Latitude: 78.861337 * Median Longitude: 14.184840 * South-bound Latitude: 77.200040 * West-bound Longitude: 4.520000 * North-bound Latitude: 80.865550 * East-bound Longitude: 32.790000
Date/Time Start: 1993-01-01T10:44:08 * Date/Time End: 2014-12-31T12:04:02
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
22 datasets

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Datasets listed in this publication series

  1. Maturilli, M; Kayser, M (2016): Homogenized radiosonde record at station Ny-Ålesund, Spitsbergen in 1993. https://doi.org/10.1594/PANGAEA.845022
  2. Maturilli, M; Kayser, M (2016): Homogenized radiosonde record at station Ny-Ålesund, Spitsbergen in 1994. https://doi.org/10.1594/PANGAEA.845023
  3. Maturilli, M; Kayser, M (2016): Homogenized radiosonde record at station Ny-Ålesund, Spitsbergen in 1995. https://doi.org/10.1594/PANGAEA.845306
  4. Maturilli, M; Kayser, M (2016): Homogenized radiosonde record at station Ny-Ålesund, Spitsbergen in 1996. https://doi.org/10.1594/PANGAEA.845319
  5. Maturilli, M; Kayser, M (2016): Homogenized radiosonde record at station Ny-Ålesund, Spitsbergen in 1997. https://doi.org/10.1594/PANGAEA.845320
  6. Maturilli, M; Kayser, M (2016): Homogenized radiosonde record at station Ny-Ålesund, Spitsbergen in 1998. https://doi.org/10.1594/PANGAEA.845321
  7. Maturilli, M; Kayser, M (2016): Homogenized radiosonde record at station Ny-Ålesund, Spitsbergen in 1999. https://doi.org/10.1594/PANGAEA.845322
  8. Maturilli, M; Kayser, M (2016): Homogenized radiosonde record at station Ny-Ålesund, Spitsbergen in 2000. https://doi.org/10.1594/PANGAEA.845324
  9. Maturilli, M; Kayser, M (2016): Homogenized radiosonde record at station Ny-Ålesund, Spitsbergen in 2001. https://doi.org/10.1594/PANGAEA.845325
  10. Maturilli, M; Kayser, M (2016): Homogenized radiosonde record at station Ny-Ålesund, Spitsbergen in 2002. https://doi.org/10.1594/PANGAEA.845326
  11. Maturilli, M; Kayser, M (2016): Homogenized radiosonde record at station Ny-Ålesund, Spitsbergen in 2003. https://doi.org/10.1594/PANGAEA.845327
  12. Maturilli, M; Kayser, M (2016): Homogenized radiosonde record at station Ny-Ålesund, Spitsbergen in 2004. https://doi.org/10.1594/PANGAEA.845328
  13. Maturilli, M; Kayser, M (2016): Homogenized radiosonde record at station Ny-Ålesund, Spitsbergen in 2005. https://doi.org/10.1594/PANGAEA.845329
  14. Maturilli, M; Kayser, M (2016): Homogenized radiosonde record at station Ny-Ålesund, Spitsbergen in 2006. https://doi.org/10.1594/PANGAEA.845330
  15. Maturilli, M; Kayser, M (2016): Homogenized radiosonde record at station Ny-Ålesund, Spitsbergen in 2007. https://doi.org/10.1594/PANGAEA.845331
  16. Maturilli, M; Kayser, M (2016): Homogenized radiosonde record at station Ny-Ålesund, Spitsbergen in 2008. https://doi.org/10.1594/PANGAEA.845332
  17. Maturilli, M; Kayser, M (2016): Homogenized radiosonde record at station Ny-Ålesund, Spitsbergen in 2009. https://doi.org/10.1594/PANGAEA.845333
  18. Maturilli, M; Kayser, M (2016): Homogenized radiosonde record at station Ny-Ålesund, Spitsbergen in 2010. https://doi.org/10.1594/PANGAEA.845334
  19. Maturilli, M; Kayser, M (2016): Homogenized radiosonde record at station Ny-Ålesund, Spitsbergen in 2011. https://doi.org/10.1594/PANGAEA.845335
  20. Maturilli, M; Kayser, M (2016): Homogenized radiosonde record at station Ny-Ålesund, Spitsbergen in 2012. https://doi.org/10.1594/PANGAEA.845336
  21. Maturilli, M; Kayser, M (2016): Homogenized radiosonde record at station Ny-Ålesund, Spitsbergen in 2013. https://doi.org/10.1594/PANGAEA.845337
  22. Maturilli, M; Kayser, M (2016): Homogenized radiosonde record at station Ny-Ålesund, Spitsbergen in 2014. https://doi.org/10.1594/PANGAEA.845338