IMAGE framework/A brief history of IMAGE: Difference between revisions
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The following new developments have been incorporated in IMAGE 3.0: | The following new developments have been incorporated in IMAGE 3.0: | ||
* ''Energy demand modules'' to address household energy demand and energy carrier preferences for urban and rural populations, and per income level in developing and emerging economies. Energy demand also includes selected energy-intensive industries using technological production alternatives with their costs and efficiencies in delivering energy services. | * '''Energy demand modules''' to address household energy demand and energy carrier preferences for urban and rural populations, and per income level in developing and emerging economies. Energy demand also includes selected energy-intensive industries using technological production alternatives with their costs and efficiencies in delivering energy services. | ||
* ''Forestry management module'' covering different production systems per region. Management systems include clear-cutting, selective cutting (conventional and reduced impact logging) and dedicated forest plantations. Wood products are also retrieved from areas deforested for agriculture and other purposes. | * '''Forestry management module''' covering different production systems per region. Management systems include clear-cutting, selective cutting (conventional and reduced impact logging) and dedicated forest plantations. Wood products are also retrieved from areas deforested for agriculture and other purposes. | ||
* ''Plant growth and carbon modelling by [[LPJmL model|LPJmL]]'', coupled to IMAGE. LPJmL simulates plant growth as a function of soil properties, water availability, climatic conditions and plant and crop growth parameters. Carbon stocks and fluxes, biomass yields and water surplus are integrated and internally consistent. | * '''Plant growth and carbon modelling by [[LPJmL model|LPJmL]]''', coupled to IMAGE. LPJmL simulates plant growth as a function of soil properties, water availability, climatic conditions and plant and crop growth parameters. Carbon stocks and fluxes, biomass yields and water surplus are integrated and internally consistent. | ||
* ''Global hydrological modelling'', linked with natural vegetation and crop growth in LPJmL. The balance of precipitation and evapotranspiration in each grid cell feeds a routing network of rivers and natural lakes. Man-made reservoirs for hydropower production, irrigation, and mixed use are included and alter river flows. | * '''Global hydrological modelling''', linked with natural vegetation and crop growth in LPJmL. The balance of precipitation and evapotranspiration in each grid cell feeds a routing network of rivers and natural lakes. Man-made reservoirs for hydropower production, irrigation, and mixed use are included and alter river flows. | ||
* ''Nutrient (N, P) soil budgets'' for natural and anthropogenic land use to assess nutrient cycles in agricultural and natural ecosystems, fertiliser use, and efficiency and integration of manure in crop production systems. In addition to these non-point sources of nutrients, point sources of urban wastewater are modelled. The fate of the nutrients in the river systems determines the load in coastal waters at a river mouth, creating risks of hypoxia and algal blooms. | * '''Nutrient (N, P) soil budgets''' for natural and anthropogenic land use to assess nutrient cycles in agricultural and natural ecosystems, fertiliser use, and efficiency and integration of manure in crop production systems. In addition to these non-point sources of nutrients, point sources of urban wastewater are modelled. The fate of the nutrients in the river systems determines the load in coastal waters at a river mouth, creating risks of hypoxia and algal blooms. | ||
*''Landscape composition on a 5x5 minutes resolution'', instead of the 0.5x0.5 degrees grid used in all IMAGE 2.x versions. Depending on the modules, 5 minute information is processed either directly or translated into fractional land use at the 0.5 degree scale. | *'''Landscape composition on a 5x5 minutes resolution''', instead of the 0.5x0.5 degrees grid used in all IMAGE 2.x versions. Depending on the modules, 5 minute information is processed either directly or translated into fractional land use at the 0.5 degree scale. | ||
* ''[[MAGICC model|MAGICC 6.0]]'', which updates the climate model and associated data, is a simple climate model that estimates global average temperatures as the result of net greenhouse gas emissions, carbon uptake, and atmospheric concentrations of climate forcing agents. The global average temperature is used to scale grid-based climate indicators emerging from complex climate model studies. | * '''[[MAGICC model|MAGICC 6.0]]''', which updates the climate model and associated data, is a simple climate model that estimates global average temperatures as the result of net greenhouse gas emissions, carbon uptake, and atmospheric concentrations of climate forcing agents. The global average temperature is used to scale grid-based climate indicators emerging from complex climate model studies. | ||
* ''Additional impact modules'', providing information on aquatic biodiversity, flood risks, soil degradation, ecosystem services, and human health. | * '''Additional impact modules''', providing information on aquatic biodiversity, flood risks, soil degradation, ecosystem services, and human health. | ||
* ''Optimal greenhouse gas emission reduction pathways'' for overall climate policy goals are explored under assumptions for participation timing, rules and emission targets under global strategies. A cost-benefit analysis tool has been added to test the net economic outcome of mitigation efforts, adaptation costs and residual climate change impacts at different levels of forcing, subject to cost and damage assumptions found in the literature. | * '''Optimal greenhouse gas emission reduction pathways''' for overall climate policy goals are explored under assumptions for participation timing, rules and emission targets under global strategies. A cost-benefit analysis tool has been added to test the net economic outcome of mitigation efforts, adaptation costs and residual climate change impacts at different levels of forcing, subject to cost and damage assumptions found in the literature. | ||
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Revision as of 10:50, 13 May 2014
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