exChelsa – extended bioclim

exChelsa variables are developed to complement the traditional 19 bioclimatic variables. Provided are layers such as snow cover, evapotranspiration, frost occurrence, etc. These layers are intended to complement the classical bioclimatic variables.

Precipitation of the warmest quarter (bio18, left) and precipitation during the tree growing season (gsp, right). Bio18 is often used in the context of how much rainfall is available for the vegetation while temperatures are high enough to allow for plant growth. It shows however quite some artifacts on the global scale which are due to the definition of a quarter. The gsp layer on the right does not show this artefacts, but also carries a different information.

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When using the data, you agree to cite the respective original peer-reviewed publication:

Karger, D.N., Conrad, O., Böhner, J., Kawohl, T., Kreft, H., Soria-Auza, R.W., Zimmermann, N.E., Linder, P., Kessler, M. (2017): Climatologies at high resolution for the Earth land surface areas. Scientific Data. 4 170122. https://doi.org/10.1038/sdata.2017.122

Additional information is available here:

CHELSA V1.2: Technical Specifications