Help overview

New users are adviced to study the examples. There is also an old presentation available that gives an overview of the system, and a more recent video presentation focussing mainly on the Atlas. Trouet and van Oldenborgh (TRR, 2013) gives a useful overview and manual for paleo-climatologists and others who try to understand the influence of climate on their time series. Finally, some results are shown on the pages Effects of El Niño on world weather.

In the Climate Explorer pages, the symbol indicates a help pop-up. Below an alphabetical list of these pop-ups is given. Please contact the administrator if the help text is confusing, or missing in a place where it is needed.

Available help topics
Add / remove time series on the list of user-defined indices
Anomalies
Apply a logarithm or square root to the data
Apply temporal filter
Apply yearly high/low-pass filter
Assumptions in fitting extreme value distributions
Atlas anomalies
Atlas datasets
Atlas measure of change
Atlas scenarios
Atlas transparency
Atlas variables
Atlas: Select a season (monthly data)
Atlas: absolute and relative variable plots
Atlas: choose area
Atlas: map and time series
Atlas: mean and percentiles
Average or set of grid points
Change sign
Choose coordinates
Combine a series with another time series
Compute Analogues
Convert units
Create a field with lower spatial resolution
Create a higher-resolution time series
Create a lower-resolution field
Create a lower-resolution set of time series
Create a lower-resolution time series
Detrend
Dutch daily data
ECA&D daily station data
ECMWF system-2 seasonal forecast fields
EOF input averaging
EOF input normalisation
EOF output normalisation
Empirical Event Attribution
Extreme Indices
Fit function
GHCN monthly station data
GHCN-D v2 daily station data
HCDN US daily runoff data
Interdecadal Pacific Oscillation (IPO)
Interpolation options
KNMI 2023 Climate Scenarios for the Netherlands
KNMI Climate Change Atlas
KNMI daily radar data
Lag
Land/sea mask
Map projection
Mask out part of a time series based on another time series
Mask
NetCDF file requirements
Noise model
PSMSL monthly sea-level data
Percentage valid points
Plot colours
Plot contour levels
Plot options: colour bar, title, grid, labels
Plot output type: graphics and raw data, or kml for other viewers
Plot shading
Rank correlations and contingency tables
Restrict data range
Running mean
SVD input normalisation
Scale a time series
Select a season (daily data)
Select a season (monthly data)
Select a season (other time scales)
Select a season (seasonal data)
Select a set of stations: amount of data, distance, elevation
Select a set of stations: name, geographical location, id
Select begin and end years
Select plot region
Select years of a time series
Summer NAO
System-defined monhly time series
TITLE
Time derivative of a series
Uitleg neerslagrange
Uitleg tijdshorizon
Upload masks
User-defined time series
smoothed GMST GISSTEMP

Select a time series

Select a field