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Climate Models


All of the figures in this section present absolute (rather than relative) precipitation measurements for the period 1900 to 1998; this period was chosen as it had available observed precipitation data. The choice of models was based on those listed on table 6 of the IPCC "General Guidelines on the Use of Scenario Data for Climate Impact and Adaptation Assessment", Version 2, June 2007.


The models we used and the reasons for our choice are given in the following table. In general we went for the latest version of a model from the same centre but also took account of the number of scenarios and the length of the simulation period.


Modelling Centre

Country

Model(s) in table 6

Models used

Notes

Commonwealth Scientific and Industrial Research Organisation (CSIRO)

Australia

CSIRO-Mk2

CSIRO Mk3.0


Max Planck Institut fur Meteorologie. (MPI)

Germany

ECHAM4/OPYC

ECHAM3/LSG

ECHAM5/ MPI-OM


Hadley Centre for Climate Prediction and Research. (UKMO)

UK

HadCM2 and HadCM3

UKMO HadCM3

In one set of files a missing value was replaced by previous year.

Canadian Centre for Climate Modelling and Analysis (CCCMA)

Canada

CGCM1 And CGCM2

CGCM3.1 (T47)

Has 5 scenarios

Geophysical Fluid Dynamics Laboratory (GFDL)

USA

GFDL-R15 and GFDL-R30

GFDL CM2.1


National Centre for Atmospheric Research (NCAR)

USA

NCAR DOE-PCM

PCM


National Institute for Environmental Studies (MIROC)

Japan

CCSR-NIES

MIROC3.2 (medres)

Covers longer period than ‘hires’ model.
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