Station mode data

All HISTALP series are “homogenised”. Station-mode series are absolute series in the physical unit of the respective climate parameter.

Homogenised series (hom) have been subject to the HISTALP homogenisation procedures which try to detect and eliminate non climatic breaks and outliers (Auer et al., 2007, chapt.3).
Please note that hom-series are “homogenised” in the described way but are not necessarily “homogeneous” (= without any non-climatic information). Our hom series are nearer to “the truth” in respect to climate variability and trends but they are not (and never will be) “the truth”. We therefore try to continuously further improve the hom-series. One example is the reduction of an “early instrumental warm bias” (Böhm et al., 2009 ) which significantly changed the long temperature hom-series from version 2007 to version 2008. Another is the application of a systematic outlier detection and correction procedure (developed and applied on air-pressure, temperature and precipitation already) on sunshine series in 2008.  So we recommend replacing the entire series and not only the recent year when a new update is available.

To see the geographical location of the stations, whose data can be downloaded from the webside take a look at the station map. We ask for acknowledging the using of HISTALP series in publications. The respective recent reference publication is Auer et al., 2007.
HISTALP network development gives the temporal evolution of the HISTALP station-mode network density.

Austrian hom-station-mode-series are downloadable for non-commercial research without restrictions. Hom-files from France as well as some stations from Switzerland require the permission of the national meteorological service, hom-files from all other national subgroups require a respective short notice about the use to the national dataproviders and to the HISTALP-management.

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