The software, downloadable from this web page, can be used to estimate more than 50 monthly, seasonal, and annual variables, including many economically or biologically relevant variables such as growing and chilling degree days, heating and cooling degree days, Hargrave's moisture deficit and reference evaporation, beginning and end of the frost-free period, etc.
Historical data since 1901-2009 are based on the CRU-TS 3.1 dataset (Mitchell & Jones, 2005, Int J Climatol 25: 693-712) and has been updated to 2013 with CRU-TS 3.22. Future projections are based on 15 AOGCMs of the CMIP5 multimodel dataset corresponding to the IPCC Assessment Report 5 (2013) x 2 Emission Scenarios (RCP4.5 and RCP8.5) x 3 standard time-slices (2020s, 2050s, 2080s). Average projected global warming increase (and likely range) for RCP4.5 are: +1.4°C (±0.5) by the 2050s; +1.8°C (±0.7) by the 2080s. For RCP8.5 they are: +2.0°C (±0.6) by the 2050s; +3.7°C (±0.9) by the 2080s.
The 15 AOGCMs are CanESM2, ACCESS1.0, IPSL-CM5A-MR, MIROC5, MPI-ESM-LR, CCSM4, HadGEM2-ES, CNRM-CM5, CSIRO Mk 3.6, GFDL-CM3, INM-CM4, MRI-CGCM3, MIROC-ESM, CESM1-CAM5, GISS-E2R and were chosen to represent all major clusters of similar AOGCMs by Knutti et al (2013). Within clusters, we selected models that had the highest validation statistics in their CMIP3 equivalents.
Get started with these two video-tutorials. This first video explains the basic functionality of the software (1) interactive query of climate for locations, (2) processing spreadsheets of locations, (3) generating time series of climate. The second video explains in detail how to generate climate grids, and how to automate generation of multiple climate surfaces for a variety of climate variables, historical time periods and future projections.
For tutorials about generating gridded climate surfaces see: http://tinyurl.com/ClimateEU.
This program does not require installation. Download, unzip, and double click the executable file ClimateAB.exe. The program should run on all versions of Windows. If you receive the error message "COMCTL32.OSX missing", you have to install these libraryfiles. The program also runs on Linux, Unix and Mac systems with the free software Wine or MacPorts/Wine).
Note that this is a beta version of ClimateSA that still undergoes some improvements to the code and model calibration. Please proceed with appropriate caution, and report any errors or suspicious estimates to help improve the work (firstname.lastname@example.org). Should we discover any major errors, a log of changes will be posted here.
Note that the ClimateSA package has not undergone peer-review yet. In the interim, reference usage like this: "Climate data has been generated with the ClimateSA v1.0 softwarepackage, available at http://tinyurl.com/ClimateSA, based on methodology described by Hamann et al. (2013)."