STARDEX and ETCCDI Climate Indices Based on E-OBS and CARPATCLIM
In part one of the present article are described the motivation for the creation, the content, structure and the access point to the free available database of climate indices ClimData. Part two is dedicated on the possibilities of climate indices-based analysis with ClimData. They are demonstrated with some thermal absolute-thresholds and percentile-based indices. Most significant outcome of the study, beside the creation of ClimData itself, is the clearly expressed warming signal in the considered climate indices. This outcome agrees generally with the prevailing number recent studies. This signal is spatially dominating over Europe, almost everywhere statistically significant and coherent in the STARDEX and ETCCDI variants of the same indices. The latter suggest that relatively small modifications of the index-definitions or selection of the input data are not sufficient enough to change the general picture of revealed changes.
KeywordsClimate indices E-OBS CARPATCLIM STARDEX ETCCDI ClimData database
We thank to the anonymous reviewers for their comments and suggestions which led to an overall improvement of the original manuscript. The project for creation of ClimData and this study is entirely based on free available data and software. The authors would like to express their deep gratitude to the organizations and institutes (CARPATCLIM, ECA&D, STARDEX, ETCCDI, Unidata and others), which provides free of charge software and data. Without their innovative data services and tools this project would be not possible. This work was partially supported by the European Commission under H2020 project VI–SEEM (Contract No. 675121) and by the Bulgarian National Science Fund (grant DN-14/3/13.12.2017).
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