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
19-jun-2018	Upgraded the NOAA merged T2m/SST dataset to the official v4.0.1 (thanks Nicholas, Boyin).
18-jun-2018	Reinstated the possibility to download the data of maps as ascii next to netcdf (thanks Paul).
15-jun-2018	Finally updated the RSS TLT fielda and indices, they had changed the file names (thanks Warwick).
04-jun-2018	Fixed a bug in the spatial min/max option of a field: if a maximum was less than zero or a minimum larger than zero, the value zero was accidentally taken. This should have been obvious from the time series plot, I hope it did not affect anyone (thanks Evgeny).
30-may-2018	Fixed a big bug in the CenTrends/CHIRPS combination: due to a "feature" of cdo the CHIRPS part was shifted by one month (thanks Chris).
14-may-2018	The last few days the Climate Explorer has been unreachable for 15 minutes or so for a few times. A cursory glance at the log files revealed nothing but heavy but normal usage, nothing suspicious that needs blocking. I am trying to get a new, more powerful server, this one will be 8 years old this (NH) summer.
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