BCCR-BCM2.0 CCCMA-CGCM3.1- CNRM-CM3 T47 Research areas: Available andCSIRO-MK3.0 usable climate data CSIRO-MK3.5 GFDL-CM2.0GFDL-CM2.1 INGV-ECHAM4 INM-CM3.0IPSL-CM4 MIROC3.2-MEDRES MIUB-ECHO-GMPI-ECHAM5 MRI-CGCM2.3.2A NCAR-CCSM3.0NCAR-PCM1 UKMO-HADCM3 UKMO-HADGEM1
Global climate models• Climate model skill (CMIP3) 1961-1990 Rainfall 1961-1990 Temperature Source: Ramirez and Challinor, 2012
Global Climate Models • Global climate model skill (IPCC 4AR) Annual December-February June-July-AugustDiurnal temperature range temperature MeanRainfall Source: Ramirez and Challinor, 2012
Also, we need downscaling• Even the most precise GCM is too coarse (~100km)• To increase resolution, uniformise, provide high resolution and contextualised data• Different methods exist… from interpolation to neural networks and RCMs
Can high resolution datasets be used for ag. Modelling? Navarro et al., in prep
Notes to take• Various sources of weather/climate data exist, pick the best for your case… if there’s no data…• Beware of errors in the data• Improvements to data network are needed• Use downscaled information carefully• Assess the ability of these data to make ag. predictions (c) Neil Palmer (CIAT)
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