Modelling of climate indicators - IFs

IFs represents the flow of carbon emissions into and among the atmosphere, oceans, and forests/soil sinks. The atmospheric stock is represented in parts per million of carbon dioxide. In each year the environment model computes the resultant average degrees Celsius of global warming from 1990 using a logarithmic formulation (with a changeable scaling parameter envclimsens) that compares that year’s atmospheric concentration with the level in 1990.

Building upon global temperature change, the grid analysis of the MAGICC/SCENGEN system (version 5.3), which draws upon a great many Atmospheric-Ocean General Circulation Models (AOGSMs), was used to build computational formulations for country-specific values of temperature and precipitation change relative to the average during the 1980-1999 period.  For the agriculture model those changes in average country temperatures and precipitation in turn affect country-specific agricultural yields (considering also possible carbon fertilization impact).