KNMI Climate Explorer
by Geert Jan van Oldenborgh, KNMI
The last few years a lot of monthly mean climate data have become
available for research: station data (GHCN),
gridded observations of temperature and sea-level pressure (CRU) and
precipitation (NCDC), and a 40-year reanalysis (NCEP/NCAR). This site gives the opportunity to
explore these data and the relationships between them. This may lead
to more insight how the climate system changes on seasonal time
scales, and empirical statistical forecast models. You will have to
judge for yourself whether the data you use are good enough to explore
decadal or longer trends. The system is still under development, I
appreciate feedback. (You can
have a look at my TODO list).
The Climate Explorer system has the following structure. First you
select a time series of climate data. This can be either
This data is presented, and can then be further investigated and
correlated with other time series or fields.
- a time series: station data (by name or
location), some climate index (e.g. NAO, NINO3), a region from a
gridded field, your own series, or
- a set of stations, or
- a gridded field: gridded observations, reconstructions or a reanalysis.
The unit of time is the month. The seasonal cycle is always taken
If you are new to the system, it may pay to study a few examples.
To trace the usage of this system please register as a user. If
you have already registered just give your e-mail address.
Copyright G. J. van