Please enter the KNMI Climate Explorer, a research tool to investigate the climate. This web site collects a lot of climate data and analysis tools. Please verify yourself that the data you use is good enough for your purpose, and report errors back. In publications the original data source should be cited, a link to a web page describing the data is always provided.

Start by selecting a class of climate data from the right-hand menu. After you have selected the time series or fields of interest, you will be able to investigate it, correlate it to other data, and generate derived data from it.

If you are new it may be helpful to study the examples.

Share and enjoy!

Some restrictions are in force, notably the possibility to define your own indices, to upload data into the Climate Explorer and to handle large datasets. If you want to use these features please log in or register.

News
18-aug-2018	From 5 August until today all datasets that are processed on my workstation because they are too large for the staging server were either no longer updated (most daily fields) or corrupted (GISTEMP) due to my accidentally turning on OpenMP there without testing.
10-aug-2018	Changed the sea ice values of -1000in HadISST1 to undefineds (thanks Genaro).
08-aug-2018	Updated E-OBS to the Copernicus version, 17.0e (thanks Else).
12-jul-2018	The Climate Explorer was unresponsive for a few times today. It turns out the 8-yr old server cannot handle operations on the 0.1° GPM/IMERG precipitation field except plotting. Other operations are no longer supported, use the 0.2° version instead.
10-jul-2018	Fixed a bug in correlatefield that caused it not to recognise ensembles anymore.
02-jul-2018	Upgraded GPCC to V8 long-term, V6 monitoring.
more...