IMAGE framework summary/Description: Difference between revisions
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|Description=<p>The IMAGE framework is structured according to the causal chain of key global sustainability issues (see Figure 2.1). IMAGE comprises two main systems. The Human or socio-economic system describes the long-term development of human activities relevant for sustainable development. The Earth system describes changes in the The | |Description=<p>The IMAGE framework is structured according to the causal chain of key global sustainability issues (see Figure 2.1). IMAGE comprises two main systems. The Human or socio-economic system describes the long-term development of human activities relevant for sustainable development. The Earth system describes changes in the The | ||
IMAGE framework is structured according to the causal chain of key global sustainability issues (see | IMAGE framework is structured according to the causal chain of key global sustainability issues (see below). IMAGE comprises two main systems. The Human or socio-economic system describes the long-term development of human activities relevant for sustainable development. The Earth system describes changes in the natural environment. The two systems are linked by the impacts of human activities on the Earth system, and by the impacts of environmental change in the Earth system on the Human system.</p> | ||
{{DisplayFigureLeftOptimalTemplate|IMAGE framework scheme}} | {{DisplayFigureLeftOptimalTemplate|IMAGE framework scheme}} | ||
==Key features of IMAGE== | ==Key features of IMAGE== | ||
===Spatial scale=== | ===Spatial scale=== | ||
The Human system and the Earth system in IMAGE 3.0 are specified according to their key dynamics. The geographical resolution for socio-economic processes is 26 regions selected because of their relevance for global environmental and/or development issues, and the relatively high degree of coherence within these regions (Figure | The Human system and the Earth system in IMAGE 3.0 are specified according to their key dynamics. The geographical resolution for socio-economic processes is 26 regions selected because of their relevance for global environmental and/or development issues, and the relatively high degree of coherence within these regions (Figure below). In the Earth system, land use and land-use changes are presented on a grid of 5x5 minutes, while the processes for plant growth, carbon and water cycles are modelled on a 30x30 minutes resolution. | ||
{{DisplayFigureLeftOptimalTemplate|Region classification map}} | {{DisplayFigureLeftOptimalTemplate|Region classification map}} | ||
See [[Region classification]] for a detailed overview of the IMAGE 3.0 regions. | See [[Region classification]] for a detailed overview of the IMAGE 3.0 regions. | ||
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Using the IMAGE model, the PBL study Rio+20 ([[PBL, 2012]]) assessed pathways to achieve ambitious global sustainability targets in 2050, including limiting climate change to 2 °C, stabilising biodiversity loss and providing full access to energy, water and food. The baseline scenario assessed possible development without major changes in current policies. Three alternative scenarios assessed possible routes to achieving the sustainability targets. The first scenario (Global Technology) was directed to achieving the target mainly through large-scale introduction of advanced technologies. The second scenario (Decentralised Solutions) assessed achieving the long-term targets by introducing small-scale technologies and emphasising local-scale solutions. The third scenario (Consumption Change) focused on the role of lifestyle changes in achieving the targets. In this chapter, the Rio+20 study is used to illustrate potential assessments with IMAGE. | Using the IMAGE model, the PBL study Rio+20 ([[PBL, 2012]]) assessed pathways to achieve ambitious global sustainability targets in 2050, including limiting climate change to 2 °C, stabilising biodiversity loss and providing full access to energy, water and food. The baseline scenario assessed possible development without major changes in current policies. Three alternative scenarios assessed possible routes to achieving the sustainability targets. The first scenario (Global Technology) was directed to achieving the target mainly through large-scale introduction of advanced technologies. The second scenario (Decentralised Solutions) assessed achieving the long-term targets by introducing small-scale technologies and emphasising local-scale solutions. The third scenario (Consumption Change) focused on the role of lifestyle changes in achieving the targets. In this chapter, the Rio+20 study is used to illustrate potential assessments with IMAGE. | ||
{{#show:PBL, 2012|? | {{#show:PBL, 2012|? HasFormattedReference}} | ||
</BlockQuote> | </BlockQuote> | ||
In the consequent pages of the summary, the various components of the IMAGE system are described briefly, and in further detail in the Component pages. Results from the Rio+20 study (PBL, 2012, see above) and some other studies are used in this chapter to illustrate the main model output. | In the consequent pages of the summary, the various components of the IMAGE system are described briefly, and in further detail in the Component pages. Results from the Rio+20 study (PBL, 2012, see above) and some other studies are used in this chapter to illustrate the main model output. | ||
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Revision as of 18:14, 9 May 2014
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