Model scope and methods - MESSAGE-GLOBIOM - Revision history

Anique Carbados: Added citations

2020-11-16T13:01:40Z

Added citations

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	MESSAGEix represents the core of the IIASA IAM framework ~~<xr id="fig:MESSAGE-GLOBIOM_iiasaiam"></xr>~~ and its main task is to optimize the energy system so that it can satisfy specified energy demand at the lowest cost. MESSAGEix carries out this optimization in an iterative setup with MACRO, which provides estimates of the macro-economic demand response that results from energy system and services costs computed by MESSAGEix. For the six commercial end-use demand categories depicted in MESSAGEix (see [[Energy_demand_-_MESSAGE-GLOBIOM\|Demand section of MESSAGEix-GLOBIOM]]), MACRO adjusts useful energy demand based on demand prices until the two models have reached equilibrium (see [[Macro-economy_-_MESSAGE-GLOBIOM\|Macro-economy section of MESSAGEix-GLOBIOM]]). It thus reflects price-induced energy efficiency improvements that can occur when energy prices change. MESSAGEix can represent different energy- and climate-related policies (see [https://www.iamcdocumentation.eu/index.php/Policy_-_MESSAGE-GLOBIOM Policy section of MESSAGEix-GLOBIOM)].		MESSAGEix<ref>Daniel Huppmann, Matthew Gidden, Oliver Fricko, Peter Kolp, Clara Orthofer, Michael Pimmer, Nikolay Kushin, Adriano Vinca, Alessio Mastrucci, Keywan Riahi, and Volker Krey. The messageix integrated assessment model and the ix modeling platform (ixmp): an open framework for integrated and cross-cutting analysis of energy, climate, the environment, and sustainable development. ''Environmental Modelling & Software'', 112:143–156, 2019. doi:10.1016/j.envsoft.2018.11.012.</ref> represents the core of the IIASA IAM framework and its main task is to optimize the energy system so that it can satisfy specified energy demand at the lowest cost. MESSAGEix carries out this optimization in an iterative setup with MACRO, which provides estimates of the macro-economic demand response that results from energy system and services costs computed by MESSAGEix. For the six commercial end-use demand categories depicted in MESSAGEix (see [[Energy_demand_-_MESSAGE-GLOBIOM\|Demand section of MESSAGEix-GLOBIOM]]), MACRO adjusts useful energy demand based on demand prices until the two models have reached equilibrium (see [[Macro-economy_-_MESSAGE-GLOBIOM\|Macro-economy section of MESSAGEix-GLOBIOM]]). It thus reflects price-induced energy efficiency improvements that can occur when energy prices change. MESSAGEix can represent different energy- and climate-related policies (see [https://www.iamcdocumentation.eu/index.php/Policy_-_MESSAGE-GLOBIOM Policy section of MESSAGEix-GLOBIOM)].

	GLOBIOM provides MESSAGEix with information on land use and its implications, like the availability and cost of bio-energy, and the availability and cost of emission mitigation in the AFOLU (Agriculture, Forestry and Land Use) sector (see [[Land-use_-_MESSAGE-GLOBIOM\|Land-use of MESSAGEix-GLOBIOM]]). To reduce computational costs, MESSAGEix iteratively queries a GLOBIOM emulator which provides an approximation of land-use outcomes during the optimization process instead of requiring the GLOBIOM model to be rerun iteratively. Once the iteration between MESSAGEix and MACRO has converged, the resulting bioenergy demands along with corresponding carbon prices are used for a concluding analysis with the full-fledged GLOBIOM model. This ensures full consistency in the results from MESSAGEix and GLOBIOM, and also allows a more extensive set of land-use related indicators, including spatially explicit information on land use, to be reported.		GLOBIOM provides MESSAGEix with information on land use and its implications, like the availability and cost of bio-energy, and the availability and cost of emission mitigation in the AFOLU (Agriculture, Forestry and Land Use) sector (see [[Land-use_-_MESSAGE-GLOBIOM\|Land-use of MESSAGEix-GLOBIOM]]). To reduce computational costs, MESSAGEix iteratively queries a GLOBIOM emulator which provides an approximation of land-use outcomes during the optimization process instead of requiring the GLOBIOM model to be rerun iteratively. Once the iteration between MESSAGEix and MACRO has converged, the resulting bioenergy demands along with corresponding carbon prices are used for a concluding analysis with the full-fledged GLOBIOM model. This ensures full consistency in the results from MESSAGEix and GLOBIOM, and also allows a more extensive set of land-use related indicators, including spatially explicit information on land use, to be reported.

	Air pollution implications of the energy system are computed in MESSAGEix by applying technology-specific pollution coefficients from GAINS (see [[Pollutants_and_non-GHG_forcing_agents_-_MESSAGE-GLOBIOM\|Pollutants and non-GHG forcing agents for MESSAGEix-GLOBIOM]] and [[Air_pollution_and_health_-_MESSAGE-GLOBIOM\|Air pollution and health of MESSAGEix-GLOBIOM]]). This approach had been applied to the SSP process (Rao et al. 2017). Alternatively, GAINS can be run ex-post based on MESSAGEix-GLOBIOM scenarios to estimate air pollution emissions, concentrations and the related health impacts. This approach allows for the analysis of different air polllution policy packages (e.g., current legislation, maximum feasible reduction), including the estimation of costs for air pollution control measures. Examples for applying this way of linking MESSAGEix-GLOBIOM and GAINS can be found in McCollum et al (2018) and Grubler et al. (2018).		Air pollution implications of the energy system are computed in MESSAGEix by applying technology-specific pollution coefficients from GAINS (see [[Pollutants_and_non-GHG_forcing_agents_-_MESSAGE-GLOBIOM\|Pollutants and non-GHG forcing agents for MESSAGEix-GLOBIOM]] and [[Air_pollution_and_health_-_MESSAGE-GLOBIOM\|Air pollution and health of MESSAGEix-GLOBIOM]]). This approach had been applied to the SSP process (Rao et al. 2017)<ref>S. Rao, Z. Klimont, S.J. Smith, R. Van Dingenen, F. Dentener, L. Bouwman, K. Riahi, M. Amann, B.L. Bodirsky, D.P. van Vuuren, L. Aleluia Reis, K. Calvin, L. Drouet, O. Fricko, S. Fujimori, D. Gernaat, P. Havlik, M. Harmsen, T. Hasegawa, C. Heyes, J. Hilaire, G. Luderer, T. Masui, E. Stehfest, J. Strefler, S. van der Sluis, and M. Tavoni. Future air pollution in the shared socio-economic pathways. ''Global Environmental Change'', 42:346–358, 2017. doi:10.1016/j.gloenvcha.2016.05.012.</ref>. Alternatively, GAINS can be run ex-post based on MESSAGEix-GLOBIOM scenarios to estimate air pollution emissions, concentrations and the related health impacts. This approach allows for the analysis of different air polllution policy packages (e.g., current legislation, maximum feasible reduction), including the estimation of costs for air pollution control measures. Examples for applying this way of linking MESSAGEix-GLOBIOM and GAINS can be found in McCollum et al (2018)<ref>D.L. McCollum, W. Zhou, C. Bertram, H.-S. De Boer, V. Bosetti, S. Busch, J. Després, L. Drouet, J. Emmerling, M. Fay, O. Fricko, S. Fujimori, M. Gidden, M. Harmsen, D. Huppmann, G. Iyer, V. Krey, E. Kriegler, C. Nicolas, S. Pachauri, S. Parkinson, M. Poblete-Cazenave, P. Rafaj, N. Rao, J. Rozenberg, A. Schmitz, W. Schoepp, D. Van Vuuren, and K. Riahi. Energy investment needs for fulfilling the paris agreement and achieving the sustainable development goals. ''Nature Energy'', 3(7):589–599, 2018. doi:10.1038/s41560-018-0179-z.</ref> and Grubler et al. (2018)<ref>A. Grubler, C. Wilson, N. Bento, B. Boza-Kiss, V. Krey, D.L. McCollum, N.D. Rao, K. Riahi, J. Rogelj, S. De Stercke, J. Cullen, S. Frank, O. Fricko, F. Guo, M. Gidden, P. Havlík, D. Huppmann, G. Kiesewetter, P. Rafaj, W. Schoepp, and H. Valin. A low energy demand scenario for meeting the 1.5 °c target and sustainable development goals without negative emission technologies. ''Nature Energy'', 3(6):515–527, 2018. doi:10.1038/s41560-018-0172-6.</ref>.

	In general, cumulative global GHG emissions from all sectors are constrained at different levels, with equivalent pricing applied to other GHGs, to reach the desired radiative forcing levels (cf. right-hand side). <xr id="fig:MESSAGE-GLOBIOM_iiasaiam"></xr>The climate constraints are thus taken up in the coupled MESSAGEix-GLOBIOM optimization, and the resulting carbon price is fed back to the full-fledged GLOBIOM model for full consistency. Finally, the combined results for land use, energy, and industrial emissions from MESSAGEix and GLOBIOM are merged and fed into MAGICC (see [[Climate_-_MESSAGE-GLOBIOM\|Climate of MESSAGEix-GLOBIOM]]), a global carbon-cycle and climate model, which then provides estimates of the climate implications in terms of atmospheric concentrations, radiative forcing, and global-mean temperature increase. Importantly, climate impacts and impacts of the carbon cycle are - depending on the specific application - only partly accounted for in the IIASA IAM framework. The entire framework is linked to an online database infrastructure which allows straightforward visualisation, analysis, comparison and dissemination of results (Riahi et al., 2017).		In general, cumulative global GHG emissions from all sectors are constrained at different levels, with equivalent pricing applied to other GHGs, to reach the desired radiative forcing levels (cf. right-hand side). <xr id="fig:MESSAGE-GLOBIOM_iiasaiam"></xr>The climate constraints are thus taken up in the coupled MESSAGEix-GLOBIOM optimization, and the resulting carbon price is fed back to the full-fledged GLOBIOM model for full consistency. Finally, the combined results for land use, energy, and industrial emissions from MESSAGEix and GLOBIOM are merged and fed into MAGICC (see [[Climate_-_MESSAGE-GLOBIOM\|Climate of MESSAGEix-GLOBIOM]]), a global carbon-cycle and climate model, which then provides estimates of the climate implications in terms of atmospheric concentrations, radiative forcing, and global-mean temperature increase. Importantly, climate impacts and impacts of the carbon cycle are - depending on the specific application - only partly accounted for in the IIASA IAM framework. The entire framework is linked to an online database infrastructure which allows straightforward visualisation, analysis, comparison and dissemination of results (Riahi et al., 2017)<ref>Keywan Riahi, Detlef P. van Vuuren, Elmar Kriegler, Jae Edmonds, Brian O’Neill, Shinichiro Fujimori, Nico Bauer, Katherine Calvin, Rob Dellink, Oliver Fricko, Wolfgang Lutz, Alexander Popp, Jesus Crespo Cuaresma, Samir KC, Marian Leimbach, Leiwen Jiang, Tom Kram, Shilpa Rao, Johannes Emmerling, Kristie Ebi, Tomoko Hasegawa, Petr Havlik, Florian Humpenoder, Lara Aleluia Da Silva, Steve Smith, Elke Stehfest, Valentina Bosetti, Jiyong Eom, David Gernaat, Toshihiko Masui, Joeri Rogelj, Jessica Strefler, Laurent Drouet, Volker Krey, Gunnar Luderer, Mathijs Harmsen, Kiyoshi Takahashi, Lavinia Baumstark, Jonathan Doelman, Mikiko Kainuma, Zbigniew Klimont, Giacomo Marangoni, Hermann Lotze-Campen, Michael Obersteiner, Andrzej Tabeau, and Massimo Tavoni. The Shared Socioeconomic Pathways and their Energy, Land Use, and Greenhouse Gas Emissions Implications. ''Global Environmental Change'', 42:153–168, 2017. URL: <nowiki>http://pure.iiasa.ac.at/13280/</nowiki>, doi:10.1016/j.gloenvcha.2016.05.009.</ref>.

	The scientific software underlying the global MESSAGEix-GLOBIOM model is called the MESSAGEix framework, an open-source, versatile implementation of a linear optimization problem, with the option of coupling to the computable general equilibrium (CGE) model MACRO to incorporate the effect of price changes on economic activity and demand for commodities and resources. MESSAGEix is integrated with the ''ix modelling platform (ixmp)'', a "data warehouse" for version control of reference timeseries, input data and model results. ixmp provides interfaces to the scientific programming languages Python and R for efficient, scripted workflows for data processing and visualisation of results (Huppmann et al., 2019).		The scientific software underlying the global MESSAGEix-GLOBIOM model is called the MESSAGEix framework, an open-source, versatile implementation of a linear optimization problem, with the option of coupling to the computable general equilibrium (CGE) model MACRO to incorporate the effect of price changes on economic activity and demand for commodities and resources. MESSAGEix is integrated with the ''ix modelling platform (ixmp)'', a "data warehouse" for version control of reference timeseries, input data and model results. ixmp provides interfaces to the scientific programming languages Python and R for efficient, scripted workflows for data processing and visualisation of results (Huppmann et al., 2019)<ref>Daniel Huppmann, Matthew Gidden, Oliver Fricko, Peter Kolp, Clara Orthofer, Michael Pimmer, Nikolay Kushin, Adriano Vinca, Alessio Mastrucci, Keywan Riahi, and Volker Krey. The messageix integrated assessment model and the ix modeling platform (ixmp): an open framework for integrated and cross-cutting analysis of energy, climate, the environment, and sustainable development. ''Environmental Modelling & Software'', 112:143–156, 2019. doi:10.1016/j.envsoft.2018.11.012.</ref>.

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Anique Carbados: Added information to air pollution section, and updated last three paragraphs to include MESSAGEix 2020 update information

2020-11-12T11:43:15Z

Added information to air pollution section, and updated last three paragraphs to include MESSAGEix 2020 update information

← Older revision		Revision as of 13:43, 12 November 2020
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	GLOBIOM provides MESSAGEix with information on land use and its implications, like the availability and cost of bio-energy, and the availability and cost of emission mitigation in the AFOLU (Agriculture, Forestry and Land Use) sector (see [[Land-use_-_MESSAGE-GLOBIOM\|Land-use of MESSAGEix-GLOBIOM]]). To reduce computational costs, MESSAGEix iteratively queries a GLOBIOM emulator which provides an approximation of land-use outcomes during the optimization process instead of requiring the GLOBIOM model to be rerun iteratively. Once the iteration between MESSAGEix and MACRO has converged, the resulting bioenergy demands along with corresponding carbon prices are used for a concluding analysis with the full-fledged GLOBIOM model. This ensures full consistency in the results from MESSAGEix and GLOBIOM, and also allows a more extensive set of land-use related indicators, including spatially explicit information on land use, to be reported.		GLOBIOM provides MESSAGEix with information on land use and its implications, like the availability and cost of bio-energy, and the availability and cost of emission mitigation in the AFOLU (Agriculture, Forestry and Land Use) sector (see [[Land-use_-_MESSAGE-GLOBIOM\|Land-use of MESSAGEix-GLOBIOM]]). To reduce computational costs, MESSAGEix iteratively queries a GLOBIOM emulator which provides an approximation of land-use outcomes during the optimization process instead of requiring the GLOBIOM model to be rerun iteratively. Once the iteration between MESSAGEix and MACRO has converged, the resulting bioenergy demands along with corresponding carbon prices are used for a concluding analysis with the full-fledged GLOBIOM model. This ensures full consistency in the results from MESSAGEix and GLOBIOM, and also allows a more extensive set of land-use related indicators, including spatially explicit information on land use, to be reported.

	Air pollution implications of the energy system are computed in MESSAGEix by applying technology-specific pollution coefficients from GAINS (see [[Pollutants_and_non-GHG_forcing_agents_-_MESSAGE-GLOBIOM\|Pollutants and non-GHG forcing agents for MESSAGEix-GLOBIOM]] and [[Air_pollution_and_health_-_MESSAGE-GLOBIOM\|Air pollution and health of MESSAGEix-GLOBIOM]]).		Air pollution implications of the energy system are computed in MESSAGEix by applying technology-specific pollution coefficients from GAINS (see [[Pollutants_and_non-GHG_forcing_agents_-_MESSAGE-GLOBIOM\|Pollutants and non-GHG forcing agents for MESSAGEix-GLOBIOM]] and [[Air_pollution_and_health_-_MESSAGE-GLOBIOM\|Air pollution and health of MESSAGEix-GLOBIOM]]). This approach had been applied to the SSP process (Rao et al. 2017). Alternatively, GAINS can be run ex-post based on MESSAGEix-GLOBIOM scenarios to estimate air pollution emissions, concentrations and the related health impacts. This approach allows for the analysis of different air polllution policy packages (e.g., current legislation, maximum feasible reduction), including the estimation of costs for air pollution control measures. Examples for applying this way of linking MESSAGEix-GLOBIOM and GAINS can be found in McCollum et al (2018) and Grubler et al. (2018).

	In general, cumulative global GHG emissions from all sectors are constrained at different levels to reach the forcing levels (cf. right-hand side). <xr id="fig:MESSAGE-GLOBIOM_iiasaiam"></xr>The climate constraints are thus taken up in the coupled ~~MESSAGE~~-GLOBIOM optimization, and the resulting carbon price is fed back to the full-fledged GLOBIOM model for full consistency. Finally, the combined results for land use, energy, and industrial emissions from ~~MESSAGE~~ and GLOBIOM are merged and fed into MAGICC (see [[Climate_-_MESSAGE-GLOBIOM\|Climate of ~~MESSAGE~~-GLOBIOM]]), a global carbon-cycle and climate model, which then provides estimates of the climate implications in terms of atmospheric concentrations, radiative forcing, and global-mean temperature increase. Importantly, climate impacts and impacts of the carbon cycle are ~~currently not~~ accounted for in the IIASA IAM framework. The entire framework is linked to an online database infrastructure which allows straightforward visualisation, analysis, comparison and dissemination of results (~~Fricko~~ et al., ~~2016 [[CiteRef::MSG~~-~~GLB_fricko_marker_2016]]~~).		In general, cumulative global GHG emissions from all sectors are constrained at different levels, with equivalent pricing applied to other GHGs, to reach the desired radiative forcing levels (cf. right-hand side). <xr id="fig:MESSAGE-GLOBIOM_iiasaiam"></xr>The climate constraints are thus taken up in the coupled MESSAGEix-GLOBIOM optimization, and the resulting carbon price is fed back to the full-fledged GLOBIOM model for full consistency. Finally, the combined results for land use, energy, and industrial emissions from MESSAGEix and GLOBIOM are merged and fed into MAGICC (see [[Climate_-_MESSAGE-GLOBIOM\|Climate of MESSAGEix-GLOBIOM]]), a global carbon-cycle and climate model, which then provides estimates of the climate implications in terms of atmospheric concentrations, radiative forcing, and global-mean temperature increase. Importantly, climate impacts and impacts of the carbon cycle are - depending on the specific application - only partly accounted for in the IIASA IAM framework. The entire framework is linked to an online database infrastructure which allows straightforward visualisation, analysis, comparison and dissemination of results (Riahi et al., 2017).

			The scientific software underlying the global MESSAGEix-GLOBIOM model is called the MESSAGEix framework, an open-source, versatile implementation of a linear optimization problem, with the option of coupling to the computable general equilibrium (CGE) model MACRO to incorporate the effect of price changes on economic activity and demand for commodities and resources. MESSAGEix is integrated with the ''ix modelling platform (ixmp)'', a "data warehouse" for version control of reference timeseries, input data and model results. ixmp provides interfaces to the scientific programming languages Python and R for efficient, scripted workflows for data processing and visualisation of results (Huppmann et al., 2019).

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Anique Carbados at 15:01, 10 November 2020

2020-11-10T15:01:49Z

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	Air pollution implications of the energy system are computed in MESSAGEix by applying technology-specific pollution coefficients from GAINS (see [[Pollutants_and_non-GHG_forcing_agents_-_MESSAGE-GLOBIOM\|Pollutants and non-GHG forcing agents for MESSAGEix-GLOBIOM]] and [[Air_pollution_and_health_-_MESSAGE-GLOBIOM\|Air pollution and health of MESSAGEix-GLOBIOM]]).		Air pollution implications of the energy system are computed in MESSAGEix by applying technology-specific pollution coefficients from GAINS (see [[Pollutants_and_non-GHG_forcing_agents_-_MESSAGE-GLOBIOM\|Pollutants and non-GHG forcing agents for MESSAGEix-GLOBIOM]] and [[Air_pollution_and_health_-_MESSAGE-GLOBIOM\|Air pollution and health of MESSAGEix-GLOBIOM]]).

	In general, cumulative global GHG emissions from all sectors are constrained at different levels to reach the forcing levels (cf. right-hand side <xr id="fig:MESSAGE-GLOBIOM_iiasaiam"></xr>). The climate constraints are thus taken up in the coupled MESSAGE-GLOBIOM optimization, and the resulting carbon price is fed back to the full-fledged GLOBIOM model for full consistency. Finally, the combined results for land use, energy, and industrial emissions from MESSAGE and GLOBIOM are merged and fed into MAGICC (see [[Climate_-_MESSAGE-GLOBIOM\|Climate of MESSAGE-GLOBIOM]]), a global carbon-cycle and climate model, which then provides estimates of the climate implications in terms of atmospheric concentrations, radiative forcing, and global-mean temperature increase. Importantly, climate impacts and impacts of the carbon cycle are currently not accounted for in the IIASA IAM framework. The entire framework is linked to an online database infrastructure which allows straightforward visualisation, analysis, comparison and dissemination of results (Fricko et al., 2016 [[CiteRef::MSG-GLB_fricko_marker_2016]]).		In general, cumulative global GHG emissions from all sectors are constrained at different levels to reach the forcing levels (cf. right-hand side). <xr id="fig:MESSAGE-GLOBIOM_iiasaiam"></xr>The climate constraints are thus taken up in the coupled MESSAGE-GLOBIOM optimization, and the resulting carbon price is fed back to the full-fledged GLOBIOM model for full consistency. Finally, the combined results for land use, energy, and industrial emissions from MESSAGE and GLOBIOM are merged and fed into MAGICC (see [[Climate_-_MESSAGE-GLOBIOM\|Climate of MESSAGE-GLOBIOM]]), a global carbon-cycle and climate model, which then provides estimates of the climate implications in terms of atmospheric concentrations, radiative forcing, and global-mean temperature increase. Importantly, climate impacts and impacts of the carbon cycle are currently not accounted for in the IIASA IAM framework. The entire framework is linked to an online database infrastructure which allows straightforward visualisation, analysis, comparison and dissemination of results (Fricko et al., 2016 [[CiteRef::MSG-GLB_fricko_marker_2016]]).

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Anique Carbados: Updated paragraph to match MESSAGEix 2020 release documentation.

2020-11-05T11:53:23Z

Updated paragraph to match MESSAGEix 2020 release documentation.

← Older revision		Revision as of 13:53, 5 November 2020
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	MESSAGEix represents the core of the IIASA IAM framework <xr id="fig:MESSAGE-GLOBIOM_iiasaiam"></xr> and its main task is to optimize the energy system so that it can satisfy specified energy demand at the lowest cost. MESSAGEix carries out this optimization in an iterative setup with MACRO, which provides estimates of the macro-economic demand response that results from energy system and services costs computed by MESSAGEix. For the six commercial end-use demand categories depicted in MESSAGEix (see [[Energy_demand_-_MESSAGE-GLOBIOM\|Demand of ~~MESSAGE~~-GLOBIOM]]), MACRO adjusts useful energy demand based on demand prices until the two models have reached equilibrium (see [[Macro-economy_-_MESSAGE-GLOBIOM\|Macro-economy section of ~~MESSAGE~~-GLOBIOM]]). It thus reflects price-induced energy efficiency improvements that can occur when energy prices change. MESSAGEix can represent different energy- and climate-related policies (see [https://www.iamcdocumentation.eu/index.php/Policy_-_MESSAGE-GLOBIOM Policy section of MESSAGEix-GLOBIOM)].		MESSAGEix represents the core of the IIASA IAM framework <xr id="fig:MESSAGE-GLOBIOM_iiasaiam"></xr> and its main task is to optimize the energy system so that it can satisfy specified energy demand at the lowest cost. MESSAGEix carries out this optimization in an iterative setup with MACRO, which provides estimates of the macro-economic demand response that results from energy system and services costs computed by MESSAGEix. For the six commercial end-use demand categories depicted in MESSAGEix (see [[Energy_demand_-_MESSAGE-GLOBIOM\|Demand section of MESSAGEix-GLOBIOM]]), MACRO adjusts useful energy demand based on demand prices until the two models have reached equilibrium (see [[Macro-economy_-_MESSAGE-GLOBIOM\|Macro-economy section of MESSAGEix-GLOBIOM]]). It thus reflects price-induced energy efficiency improvements that can occur when energy prices change. MESSAGEix can represent different energy- and climate-related policies (see [https://www.iamcdocumentation.eu/index.php/Policy_-_MESSAGE-GLOBIOM Policy section of MESSAGEix-GLOBIOM)].

	GLOBIOM provides MESSAGEix with information on land use and its implications, like the availability and cost of bio-energy, and availability and cost of emission mitigation in the AFOLU (Agriculture, Forestry and Land Use) sector (see [[Land-use_-_MESSAGE-GLOBIOM\|Land-use of ~~MESSAGE~~-GLOBIOM]]). To reduce computational costs, MESSAGEix iteratively queries a GLOBIOM emulator which ~~can provide possible~~ land-use outcomes during the optimization process instead of requiring the GLOBIOM model to be rerun ~~continuously~~. ~~Only once~~ the iteration between MESSAGEix and MACRO has converged, the resulting bioenergy demands along with corresponding carbon prices are used for a concluding ~~online~~ analysis with the full-fledged GLOBIOM model. This ensures full consistency in the ~~modelled~~ results from MESSAGEix and GLOBIOM, and also allows ~~the production of~~ a more extensive set of ~~reporting variables~~.		GLOBIOM provides MESSAGEix with information on land use and its implications, like the availability and cost of bio-energy, and the availability and cost of emission mitigation in the AFOLU (Agriculture, Forestry and Land Use) sector (see [[Land-use_-_MESSAGE-GLOBIOM\|Land-use of MESSAGEix-GLOBIOM]]). To reduce computational costs, MESSAGEix iteratively queries a GLOBIOM emulator which provides an approximation of land-use outcomes during the optimization process instead of requiring the GLOBIOM model to be rerun iteratively. Once the iteration between MESSAGEix and MACRO has converged, the resulting bioenergy demands along with corresponding carbon prices are used for a concluding analysis with the full-fledged GLOBIOM model. This ensures full consistency in the results from MESSAGEix and GLOBIOM, and also allows a more extensive set of land-use related indicators, including spatially explicit information on land use, to be reported.

	Air pollution implications of the energy system are computed in MESSAGEix by applying technology-specific pollution coefficients from GAINS (see [[Pollutants_and_non-GHG_forcing_agents_-_MESSAGE-GLOBIOM\|Pollutants and non-GHG forcing agents for ~~MESSAGE~~-GLOBIOM]] and [[Air_pollution_and_health_-_MESSAGE-GLOBIOM\|Air pollution and health of ~~MESSAGE~~-GLOBIOM]]).		Air pollution implications of the energy system are computed in MESSAGEix by applying technology-specific pollution coefficients from GAINS (see [[Pollutants_and_non-GHG_forcing_agents_-_MESSAGE-GLOBIOM\|Pollutants and non-GHG forcing agents for MESSAGEix-GLOBIOM]] and [[Air_pollution_and_health_-_MESSAGE-GLOBIOM\|Air pollution and health of MESSAGEix-GLOBIOM]]).

	In general, cumulative global GHG emissions from all sectors are constrained at different levels to reach the forcing levels (cf. right-hand side <xr id="fig:MESSAGE-GLOBIOM_iiasaiam"></xr>). The climate constraints are thus taken up in the coupled MESSAGE-GLOBIOM optimization, and the resulting carbon price is fed back to the full-fledged GLOBIOM model for full consistency. Finally, the combined results for land use, energy, and industrial emissions from MESSAGE and GLOBIOM are merged and fed into MAGICC (see [[Climate_-_MESSAGE-GLOBIOM\|Climate of MESSAGE-GLOBIOM]]), a global carbon-cycle and climate model, which then provides estimates of the climate implications in terms of atmospheric concentrations, radiative forcing, and global-mean temperature increase. Importantly, climate impacts and impacts of the carbon cycle are currently not accounted for in the IIASA IAM framework. The entire framework is linked to an online database infrastructure which allows straightforward visualisation, analysis, comparison and dissemination of results (Fricko et al., 2016 [[CiteRef::MSG-GLB_fricko_marker_2016]]).		In general, cumulative global GHG emissions from all sectors are constrained at different levels to reach the forcing levels (cf. right-hand side <xr id="fig:MESSAGE-GLOBIOM_iiasaiam"></xr>). The climate constraints are thus taken up in the coupled MESSAGE-GLOBIOM optimization, and the resulting carbon price is fed back to the full-fledged GLOBIOM model for full consistency. Finally, the combined results for land use, energy, and industrial emissions from MESSAGE and GLOBIOM are merged and fed into MAGICC (see [[Climate_-_MESSAGE-GLOBIOM\|Climate of MESSAGE-GLOBIOM]]), a global carbon-cycle and climate model, which then provides estimates of the climate implications in terms of atmospheric concentrations, radiative forcing, and global-mean temperature increase. Importantly, climate impacts and impacts of the carbon cycle are currently not accounted for in the IIASA IAM framework. The entire framework is linked to an online database infrastructure which allows straightforward visualisation, analysis, comparison and dissemination of results (Fricko et al., 2016 [[CiteRef::MSG-GLB_fricko_marker_2016]]).

Anique Carbados: Edited link to direct to correct page.

2020-11-05T11:20:27Z

Edited link to direct to correct page.

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	\|DocumentationCategory=Model scope and methods		\|DocumentationCategory=Model scope and methods
	}}		}}
	MESSAGEix represents the core of the IIASA IAM framework <xr id="fig:MESSAGE-GLOBIOM_iiasaiam"></xr> and its main task is to optimize the energy system so that it can satisfy specified energy demand at the lowest cost. MESSAGEix carries out this optimization in an iterative setup with MACRO, which provides estimates of the macro-economic demand response that results from energy system and services costs computed by MESSAGEix. For the six commercial end-use demand categories depicted in MESSAGEix (see [[Energy_demand_-_MESSAGE-GLOBIOM\|Demand of MESSAGE-GLOBIOM]]), MACRO adjusts useful energy demand based on demand prices until the two models have reached equilibrium (see [[Macro-economy_-_MESSAGE-GLOBIOM\|Macro-economy section of MESSAGE-GLOBIOM]]). It thus reflects price-induced energy efficiency improvements that can occur when energy prices change. MESSAGEix can represent different energy- and climate-related policies (see [[Policy section of MESSAGEix-GLOBIOM)]].		MESSAGEix represents the core of the IIASA IAM framework <xr id="fig:MESSAGE-GLOBIOM_iiasaiam"></xr> and its main task is to optimize the energy system so that it can satisfy specified energy demand at the lowest cost. MESSAGEix carries out this optimization in an iterative setup with MACRO, which provides estimates of the macro-economic demand response that results from energy system and services costs computed by MESSAGEix. For the six commercial end-use demand categories depicted in MESSAGEix (see [[Energy_demand_-_MESSAGE-GLOBIOM\|Demand of MESSAGE-GLOBIOM]]), MACRO adjusts useful energy demand based on demand prices until the two models have reached equilibrium (see [[Macro-economy_-_MESSAGE-GLOBIOM\|Macro-economy section of MESSAGE-GLOBIOM]]). It thus reflects price-induced energy efficiency improvements that can occur when energy prices change. MESSAGEix can represent different energy- and climate-related policies (see [https://www.iamcdocumentation.eu/index.php/Policy_-_MESSAGE-GLOBIOM Policy section of MESSAGEix-GLOBIOM)].

	GLOBIOM provides MESSAGEix with information on land use and its implications, like the availability and cost of bio-energy, and availability and cost of emission mitigation in the AFOLU (Agriculture, Forestry and Land Use) sector (see [[Land-use_-_MESSAGE-GLOBIOM\|Land-use of MESSAGE-GLOBIOM]]). To reduce computational costs, MESSAGEix iteratively queries a GLOBIOM emulator which can provide possible land-use outcomes during the optimization process instead of requiring the GLOBIOM model to be rerun continuously. Only once the iteration between MESSAGEix and MACRO has converged, the resulting bioenergy demands along with corresponding carbon prices are used for a concluding online analysis with the full-fledged GLOBIOM model. This ensures full consistency in the modelled results from MESSAGEix and GLOBIOM, and also allows the production of a more extensive set of reporting variables.		GLOBIOM provides MESSAGEix with information on land use and its implications, like the availability and cost of bio-energy, and availability and cost of emission mitigation in the AFOLU (Agriculture, Forestry and Land Use) sector (see [[Land-use_-_MESSAGE-GLOBIOM\|Land-use of MESSAGE-GLOBIOM]]). To reduce computational costs, MESSAGEix iteratively queries a GLOBIOM emulator which can provide possible land-use outcomes during the optimization process instead of requiring the GLOBIOM model to be rerun continuously. Only once the iteration between MESSAGEix and MACRO has converged, the resulting bioenergy demands along with corresponding carbon prices are used for a concluding online analysis with the full-fledged GLOBIOM model. This ensures full consistency in the modelled results from MESSAGEix and GLOBIOM, and also allows the production of a more extensive set of reporting variables.

Anique Carbados: Adding link to Policy section

2020-11-05T11:19:09Z

Adding link to Policy section

← Older revision		Revision as of 13:19, 5 November 2020
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	MESSAGEix represents the core of the IIASA IAM framework <xr id="fig:MESSAGE-GLOBIOM_iiasaiam"></xr> and its main task is to optimize the energy system so that it can satisfy specified energy demand at the lowest cost. MESSAGEix carries out this optimization in an iterative setup with MACRO, which provides estimates of the macro-economic demand response that results from energy system and services costs computed by MESSAGEix. For the six commercial end-use demand categories depicted in MESSAGEix (see [[Energy_demand_-_MESSAGE-GLOBIOM\|Demand of MESSAGE-GLOBIOM]]), MACRO adjusts useful energy demand based on demand prices until the two models have reached equilibrium (see [[Macro-economy_-_MESSAGE-GLOBIOM\|Macro-economy section of MESSAGE-GLOBIOM]]). It thus reflects price-induced energy efficiency improvements that can occur when energy prices change. MESSAGEix can represent different energy- and climate-related policies.		MESSAGEix represents the core of the IIASA IAM framework <xr id="fig:MESSAGE-GLOBIOM_iiasaiam"></xr> and its main task is to optimize the energy system so that it can satisfy specified energy demand at the lowest cost. MESSAGEix carries out this optimization in an iterative setup with MACRO, which provides estimates of the macro-economic demand response that results from energy system and services costs computed by MESSAGEix. For the six commercial end-use demand categories depicted in MESSAGEix (see [[Energy_demand_-_MESSAGE-GLOBIOM\|Demand of MESSAGE-GLOBIOM]]), MACRO adjusts useful energy demand based on demand prices until the two models have reached equilibrium (see [[Macro-economy_-_MESSAGE-GLOBIOM\|Macro-economy section of MESSAGE-GLOBIOM]]). It thus reflects price-induced energy efficiency improvements that can occur when energy prices change. MESSAGEix can represent different energy- and climate-related policies (see [[Policy section of MESSAGEix-GLOBIOM)]].

	GLOBIOM provides MESSAGEix with information on land use and its implications, like the availability and cost of bio-energy, and availability and cost of emission mitigation in the AFOLU (Agriculture, Forestry and Land Use) sector (see [[Land-use_-_MESSAGE-GLOBIOM\|Land-use of MESSAGE-GLOBIOM]]). To reduce computational costs, MESSAGEix iteratively queries a GLOBIOM emulator which can provide possible land-use outcomes during the optimization process instead of requiring the GLOBIOM model to be rerun continuously. Only once the iteration between MESSAGEix and MACRO has converged, the resulting bioenergy demands along with corresponding carbon prices are used for a concluding online analysis with the full-fledged GLOBIOM model. This ensures full consistency in the modelled results from MESSAGEix and GLOBIOM, and also allows the production of a more extensive set of reporting variables.		GLOBIOM provides MESSAGEix with information on land use and its implications, like the availability and cost of bio-energy, and availability and cost of emission mitigation in the AFOLU (Agriculture, Forestry and Land Use) sector (see [[Land-use_-_MESSAGE-GLOBIOM\|Land-use of MESSAGE-GLOBIOM]]). To reduce computational costs, MESSAGEix iteratively queries a GLOBIOM emulator which can provide possible land-use outcomes during the optimization process instead of requiring the GLOBIOM model to be rerun continuously. Only once the iteration between MESSAGEix and MACRO has converged, the resulting bioenergy demands along with corresponding carbon prices are used for a concluding online analysis with the full-fledged GLOBIOM model. This ensures full consistency in the modelled results from MESSAGEix and GLOBIOM, and also allows the production of a more extensive set of reporting variables.

Anique Carbados: Edited first paragraph to match the 2020 release documentation on Read the Docs. Updated MESSAGE name to MESSAGEix

2020-11-05T11:17:15Z

Edited first paragraph to match the 2020 release documentation on Read the Docs. Updated MESSAGE name to MESSAGEix

← Older revision		Revision as of 13:17, 5 November 2020
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	~~MESSAGE~~ represents the core of the IIASA IAM framework <xr id="fig:MESSAGE-GLOBIOM_iiasaiam"/> and its main task is to optimize the energy system so that it can satisfy specified energy ~~demands~~ at the lowest ~~costs~~. ~~MESSAGE~~ carries out this optimization in an iterative setup with MACRO, which provides estimates of the macro-economic demand response that results of energy system and services costs computed by ~~MESSAGE~~. For the six commercial end-use demand categories depicted in ~~MESSAGE~~ (see [[Energy_demand_-_MESSAGE-GLOBIOM\|Demand of MESSAGE-GLOBIOM]]), MACRO ~~will adjust~~ useful energy ~~demands,~~ until the two models have reached equilibrium (see [[Macro-economy_-_MESSAGE-GLOBIOM\|Macro-economy section of MESSAGE-GLOBIOM]]). ~~This iteration~~ reflects price-induced energy efficiency improvements that can occur when energy prices ~~increase~~.		MESSAGEix represents the core of the IIASA IAM framework <xr id="fig:MESSAGE-GLOBIOM_iiasaiam"></xr> and its main task is to optimize the energy system so that it can satisfy specified energy demand at the lowest cost. MESSAGEix carries out this optimization in an iterative setup with MACRO, which provides estimates of the macro-economic demand response that results from energy system and services costs computed by MESSAGEix. For the six commercial end-use demand categories depicted in MESSAGEix (see [[Energy_demand_-_MESSAGE-GLOBIOM\|Demand of MESSAGE-GLOBIOM]]), MACRO adjusts useful energy demand based on demand prices until the two models have reached equilibrium (see [[Macro-economy_-_MESSAGE-GLOBIOM\|Macro-economy section of MESSAGE-GLOBIOM]]). It thus reflects price-induced energy efficiency improvements that can occur when energy prices change. MESSAGEix can represent different energy- and climate-related policies.

	GLOBIOM provides ~~MESSAGE~~ with information on land use and its implications, like the availability and cost of bio-energy, and availability and cost of emission mitigation in the AFOLU (Agriculture, Forestry and Land Use) sector (see [[Land-use_-_MESSAGE-GLOBIOM\|Land-use of MESSAGE-GLOBIOM]]). To reduce computational costs, ~~MESSAGE~~ iteratively queries a GLOBIOM emulator which can provide possible land-use outcomes during the optimization process instead of requiring the GLOBIOM model to be rerun continuously. Only once the iteration between ~~MESSAGE~~ and MACRO has converged, the resulting bioenergy demands along with corresponding carbon prices are used for a concluding online analysis with the full-fledged GLOBIOM model. This ensures full consistency in the modelled results from ~~MESSAGE~~ and GLOBIOM, and also allows the production of a more extensive set of reporting variables.		GLOBIOM provides MESSAGEix with information on land use and its implications, like the availability and cost of bio-energy, and availability and cost of emission mitigation in the AFOLU (Agriculture, Forestry and Land Use) sector (see [[Land-use_-_MESSAGE-GLOBIOM\|Land-use of MESSAGE-GLOBIOM]]). To reduce computational costs, MESSAGEix iteratively queries a GLOBIOM emulator which can provide possible land-use outcomes during the optimization process instead of requiring the GLOBIOM model to be rerun continuously. Only once the iteration between MESSAGEix and MACRO has converged, the resulting bioenergy demands along with corresponding carbon prices are used for a concluding online analysis with the full-fledged GLOBIOM model. This ensures full consistency in the modelled results from MESSAGEix and GLOBIOM, and also allows the production of a more extensive set of reporting variables.

	Air pollution implications of the energy system are computed in ~~MESSAGE~~ by applying technology-specific pollution coefficients from GAINS (see [[Pollutants_and_non-GHG_forcing_agents_-_MESSAGE-GLOBIOM\|Pollutants and non-GHG forcing agents for MESSAGE-GLOBIOM]] and [[Air_pollution_and_health_-_MESSAGE-GLOBIOM\|Air pollution and health of MESSAGE-GLOBIOM]]).		Air pollution implications of the energy system are computed in MESSAGEix by applying technology-specific pollution coefficients from GAINS (see [[Pollutants_and_non-GHG_forcing_agents_-_MESSAGE-GLOBIOM\|Pollutants and non-GHG forcing agents for MESSAGE-GLOBIOM]] and [[Air_pollution_and_health_-_MESSAGE-GLOBIOM\|Air pollution and health of MESSAGE-GLOBIOM]]).

	In general, cumulative global GHG emissions from all sectors are constrained at different levels to reach the forcing levels (cf. right-hand side <xr id="fig:MESSAGE-GLOBIOM_iiasaiam"/>). The climate constraints are thus taken up in the coupled MESSAGE-GLOBIOM optimization, and the resulting carbon price is fed back to the full-fledged GLOBIOM model for full consistency. Finally, the combined results for land use, energy, and industrial emissions from MESSAGE and GLOBIOM are merged and fed into MAGICC (see [[Climate_-_MESSAGE-GLOBIOM\|Climate of MESSAGE-GLOBIOM]]), a global carbon-cycle and climate model, which then provides estimates of the climate implications in terms of atmospheric concentrations, radiative forcing, and global-mean temperature increase. Importantly, climate impacts and impacts of the carbon cycle are currently not accounted for in the IIASA IAM framework. The entire framework is linked to an online database infrastructure which allows straightforward visualisation, analysis, comparison and dissemination of results (Fricko et al., 2016 [[CiteRef::MSG-GLB_fricko_marker_2016]]).		In general, cumulative global GHG emissions from all sectors are constrained at different levels to reach the forcing levels (cf. right-hand side <xr id="fig:MESSAGE-GLOBIOM_iiasaiam"></xr>). The climate constraints are thus taken up in the coupled MESSAGE-GLOBIOM optimization, and the resulting carbon price is fed back to the full-fledged GLOBIOM model for full consistency. Finally, the combined results for land use, energy, and industrial emissions from MESSAGE and GLOBIOM are merged and fed into MAGICC (see [[Climate_-_MESSAGE-GLOBIOM\|Climate of MESSAGE-GLOBIOM]]), a global carbon-cycle and climate model, which then provides estimates of the climate implications in terms of atmospheric concentrations, radiative forcing, and global-mean temperature increase. Importantly, climate impacts and impacts of the carbon cycle are currently not accounted for in the IIASA IAM framework. The entire framework is linked to an online database infrastructure which allows straightforward visualisation, analysis, comparison and dissemination of results (Fricko et al., 2016 [[CiteRef::MSG-GLB_fricko_marker_2016]]).

	<div style=" overflow: auto;">		<div style=" overflow: auto;">

Rineke Oostenrijk: Text replacement - "|QQQ " to ""

2020-06-23T15:14:44Z

Text replacement - "|QQQ " to ""

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	MESSAGE represents the core of the IIASA IAM framework <xr id="fig:MESSAGE-GLOBIOM_iiasaiam"/> and its main task is to optimize the energy system so that it can satisfy specified energy demands at the lowest costs. MESSAGE carries out this optimization in an iterative setup with MACRO, which provides estimates of the macro-economic demand response that results of energy system and services costs computed by MESSAGE. For the six commercial end-use demand categories depicted in MESSAGE (see [[Energy_demand_-_MESSAGE-GLOBIOM\|Demand of MESSAGE-GLOBIOM]]), MACRO will adjust useful energy demands, until the two models have reached equilibrium (see [[Macro-economy_-_MESSAGE-GLOBIOM\|Macro-economy section of MESSAGE-GLOBIOM]]). This iteration reflects price-induced energy efficiency improvements that can occur when energy prices increase.		MESSAGE represents the core of the IIASA IAM framework <xr id="fig:MESSAGE-GLOBIOM_iiasaiam"/> and its main task is to optimize the energy system so that it can satisfy specified energy demands at the lowest costs. MESSAGE carries out this optimization in an iterative setup with MACRO, which provides estimates of the macro-economic demand response that results of energy system and services costs computed by MESSAGE. For the six commercial end-use demand categories depicted in MESSAGE (see [[Energy_demand_-_MESSAGE-GLOBIOM\|Demand of MESSAGE-GLOBIOM]]), MACRO will adjust useful energy demands, until the two models have reached equilibrium (see [[Macro-economy_-_MESSAGE-GLOBIOM\|Macro-economy section of MESSAGE-GLOBIOM]]). This iteration reflects price-induced energy efficiency improvements that can occur when energy prices increase.

Rineke Oostenrijk: Text replacement - "HasParent=(.*) " to "QQQ "

2020-06-23T15:10:22Z

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	}}		}}
	MESSAGE represents the core of the IIASA IAM framework <xr id="fig:MESSAGE-GLOBIOM_iiasaiam"/> and its main task is to optimize the energy system so that it can satisfy specified energy demands at the lowest costs. MESSAGE carries out this optimization in an iterative setup with MACRO, which provides estimates of the macro-economic demand response that results of energy system and services costs computed by MESSAGE. For the six commercial end-use demand categories depicted in MESSAGE (see [[Energy_demand_-_MESSAGE-GLOBIOM\|Demand of MESSAGE-GLOBIOM]]), MACRO will adjust useful energy demands, until the two models have reached equilibrium (see [[Macro-economy_-_MESSAGE-GLOBIOM\|Macro-economy section of MESSAGE-GLOBIOM]]). This iteration reflects price-induced energy efficiency improvements that can occur when energy prices increase.		MESSAGE represents the core of the IIASA IAM framework <xr id="fig:MESSAGE-GLOBIOM_iiasaiam"/> and its main task is to optimize the energy system so that it can satisfy specified energy demands at the lowest costs. MESSAGE carries out this optimization in an iterative setup with MACRO, which provides estimates of the macro-economic demand response that results of energy system and services costs computed by MESSAGE. For the six commercial end-use demand categories depicted in MESSAGE (see [[Energy_demand_-_MESSAGE-GLOBIOM\|Demand of MESSAGE-GLOBIOM]]), MACRO will adjust useful energy demands, until the two models have reached equilibrium (see [[Macro-economy_-_MESSAGE-GLOBIOM\|Macro-economy section of MESSAGE-GLOBIOM]]). This iteration reflects price-induced energy efficiency improvements that can occur when energy prices increase.

Rineke Oostenrijk: Text replacement - "|HasSeq=1 " to ""

2020-06-23T15:02:29Z

Text replacement - "|HasSeq=1 " to ""

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	\|HasParent=Model Documentation_-_MESSAGE-GLOBIOM		\|HasParent=Model Documentation_-_MESSAGE-GLOBIOM
	}}		}}