Articles | Volume 17, issue 2
https://doi.org/10.5194/tc-17-653-2023
https://doi.org/10.5194/tc-17-653-2023
Research article
 | 
09 Feb 2023
Research article |  | 09 Feb 2023

The benefits of homogenising snow depth series – Impacts on decadal trends and extremes for Switzerland

Moritz Buchmann, Gernot Resch, Michael Begert, Stefan Brönnimann, Barbara Chimani, Wolfgang Schöner, and Christoph Marty

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Short summary
Our current knowledge of spatial and temporal snow depth trends is based almost exclusively on time series of non-homogenised observational data. However, like other long-term series from observations, they are susceptible to inhomogeneities that can affect the trends and even change the sign. To assess the relevance of homogenisation for daily snow depths, we investigated its impact on trends and changes in extreme values of snow indices between 1961 and 2021 in the Swiss observation network.