• Corpus ID: 218581120

A new segmentation method for the homogenisation of GNSS-derived IWV time-series

  title={A new segmentation method for the homogenisation of GNSS-derived IWV time-series},
  author={Annarosa Quarello and Olivier Bock and {\'E}milie Lebarbier},
  journal={arXiv: Methodology},
Homogenization is an important and crucial step to improve the usage of observational data for climate analysis. This work is motivated by the analysis of long series of GNSS Integrated Water Vapour (IWV) data which have not yet been used in this context. This paper proposes a novel segmentation method that integrates a periodic bias and a heterogeneous, monthly varying, variance. The method consists in estimating first the variance using a robust estimator and then estimating the segmentation… 
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