Abstract
Snow and weather observations at Weissfluhjoch were initiated in 1936, when a research team set a snow stake and started digging snow pits on a plateau located at 2,540 m asl above Davos, Switzerland. This was the beginning of what is now the longest series of daily snow depth, new snow height and bi-monthly snow water equivalent measurements from a high-altitude research station. Our investigations reveal that the snow depth at Weissfluhjoch with regard to the evolution and inter-annual variability represents a good proxy for the entire Swiss Alps. In order to set the snow and weather observations from Weissfluhjoch in a broader context, this paper also shows some comparisons with measurements from five other high-altitude observatories in the European Alps. The results show a surprisingly uniform warming of 0.8°C during the last three decades at the six investigated mountain stations. The long-term snow measurements reveal no change in mid-winter, but decreasing trends (especially since the 1980s) for the solid precipitation ratio, snow fall, snow water equivalent and snow depth during the melt season due to a strong temperature increase of 2.5°C in the spring and summer months of the last three decades.
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Acknowledgements
We are grateful that the National Weather Services of Austria (ZAMG), Germany (DWD), and Switzerland (MeteoSwiss) have maintained their long-term mountain observatories and thank them for providing the data and metadata for this analysis. We also thank Charles Fierz for sharing his knowledge about the measurements at Weissfluhjoch and Marcia Phillips for polishing the English.
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Marty, C., Meister, R. Long-term snow and weather observations at Weissfluhjoch and its relation to other high-altitude observatories in the Alps. Theor Appl Climatol 110, 573–583 (2012). https://doi.org/10.1007/s00704-012-0584-3
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DOI: https://doi.org/10.1007/s00704-012-0584-3