CHELSA (Climatologies at high resolution for the earth’s land surface areas) is a very high resolution (30 arc sec, ~1km) global downscaled climate data set currently hosted by the Swiss Federal Institute for Forest, Snow and Landscape Research WSL. It is built to provide free access to high resolution climate data for research and application, and is constantly updated and refined.
Current work based on CHELSA:
Brun, P., Zimmermann, N.E., Hari, C., Pellissier, L., Karger, D.N. (preprint): Global climate-related predictors at kilometre resolution for the past and future. Earth Syst. Sci. Data Discuss. doi.org/10.5194/essd-2022-212
Karger, D.N., Wilson, A.M., Mahony, C., Zimmermann, N.E., Jetz, W. (2021): Global daily 1km land surface precipitation based on cloud cover-informed downscaling. Scientific Data. doi.org/10.1038/s41597-021-01084-6
Karger, D.N., Schmatz, D., Detttling, D., Zimmermann, N.E. (2020): High resolution monthly precipitation and temperature timeseries for the period 2006-2100. Scientific Data. https://doi.org/10.1038/s41597-020-00587-y
Karger, D.N., Lange, S., Hari, C., Reyer, C. P. O., Zimmermann, N.E. (2021): CHELSA-W5E5 v1.0: W5E5 v1.0 downscaled with CHELSA v2.0. ISIMIP Repository. https://doi.org/10.48364/ISIMIP.836809
The data can be downloaded here: