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
21-jan-2015	Added an option to the trends of extremes form to normalise all series to the same mean before pooling them.
16-jan-2015	Fixed bugs in the transformation to lower-frequency data that gave empty series and fields.
09-jan-2015	Added the possibility to make an anomaly field for monthly
12-jan-2015	Moved all data to a much larger dataserver, I can finally start adding big datasets again (daily CMIP5, CORDEX, KNMI'14 runs, seasonal hindcasts). Please tell me what you need to have access to.
09-jan-2015	Added the possibility to make an anomaly field for monthly data.
29-dec-2014	Added ERSST v4, fixed HadSST3 (thanks Bob).
12-dec-2014	Fixed GHCN-D that was corrupted by a full hard disk (again) (thanks Darko).
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