You are here

CCAFS Climate Change Data Portal

TitleCCAFS Climate Change Data Portal
Publication TypeData Reference (data sets, data web portals, etc...)
Citation Key626
Community Notes



Open Source or not?



Types of data provided





Temporal and spatial scale of provided data;


Details and Emissions scenarios

Sequence of steps


Output choices


9) CCAFS - Climate Change Agriculture and Food Security

Downscaled data.
Using delta method, pattern scaling with ClimGen, with MarkSim, and dynamical downscaling from 1 RCM - PRECIS.

- AR4 downscaled data

- TMAX, TMIN, MeanT, precipitation

For some methods - rainy days, solar radiation and diurnal tempertaure range are available;

- monthly or daily depending on method;

- PRECIS – S.American Andes; 50 km resolution

- at least 4 GCMs per SRES scenario for each method;

- already prepared files – use a GUI to download.

- ARC-Grids, ARC-ASCII formats;

- WGS84 datum;

- Spatial downscaling –
Including delta method (baseline data WorldClim), pattern scaling with ClimGen – 7GCMs and A1b (1/2 degree resol, 2006-2010 period), pattern scaling with MarkSim weather generator (daily data, B1, A2, A1b, 4 GCMs, 2030s, 2050s, 2080s), dynamical downscaling PRECIS model for SAmerican Andes;
- Plots of projections by SRES emissions scenario and method

- Spatial disaggregation - based on delta method and WorldClim baseline data (about 24 models, 3 SRES emissions scenarios) at 30 arc-seconds, 2.5 arc-minutes, 5 arc-minutes, and 10 arc-minutes resolutions; monthly Tmax, Tmin, meanT, precip and bioclimatic variables;

- Useful documentation about the methods can be found here
- Tutorial to generate 19 bioclimatic variables from monthly datasets

This resource provides access to 4 downscaled datasets using 4 different downscaling methods.



Projects that used this resource: 

Data Tags

Climate Indices: 
Geographical Domain: 
Detailed Downscaling Description: 
Delta, Pattern Scaling with ClimGen and with MarkSim WG, PRECISE RCM
Temporal Resolution: 
Data Output Format: