IMAGE framework summary/Description: Difference between revisions
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The [[LPJmL model]] used for a description of vegetation and carbon cycle also includes a global hydrological model ([[ | The [[LPJmL model]] used for a description of vegetation and carbon cycle also includes a global hydrological model ([[Water]]). With this coupled hydrological model, IMAGE scenarios now also capture future changes in water availability, agricultural water use and water shortage.. Water demand for irrigated agriculture is calculated inLPJmL, based on requirements for evapotranspiration for the crop types grown on irrigated land. Water demand for other sectors (households, manufacturing, electricity and livestock) is currently adopted from exogenous scenarios. The most frequently used are WaterGap projections of the University of Kassel, adjusted to remain consistent with projections for households, livestock numbers, industrial value added, and for thermal electricity production as projected with IMAGE-TIMER. | ||
''The increases projected in agricultural , energy and industry production households lead to an increasing demand for water. At the same time, climate change also impacts the water cycle. While overall climate change is projected to lead to more precipitation, geographical patterns show changes to both dryer and wetter gridcells. As a result, the water balance improves in some regions, while it deteriorates in other regions. The pattern of these changes is very uncertain. In combination with increased demand, however, the number of people confronted with serious water stress is projected to increase significantly.'' | ''The increases projected in agricultural , energy and industry production households lead to an increasing demand for water. At the same time, climate change also impacts the water cycle. While overall climate change is projected to lead to more precipitation, geographical patterns show changes to both dryer and wetter gridcells. As a result, the water balance improves in some regions, while it deteriorates in other regions. The pattern of these changes is very uncertain. In combination with increased demand, however, the number of people confronted with serious water stress is projected to increase significantly.'' | ||
Revision as of 14:46, 8 May 2014
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