IMAGE framework: Difference between revisions
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===Objective and scope of IMAGE=== | ===Objective and scope of IMAGE=== | ||
IMAGE is a comprehensive integrated modelling framework of interacting human and natural systems. Its design relies on intermediate complexity modelling, balancing level of detail to capture key processes and behaviour, and allowing for multiple runs to explore aspects of sensitivity and uncertainty of the complex, interlinked systems (see IMAGE framework part: [[ | IMAGE is a comprehensive integrated modelling framework of interacting human and natural systems. Its design relies on intermediate complexity modelling, balancing level of detail to capture key processes and behaviour, and allowing for multiple runs to explore aspects of sensitivity and uncertainty of the complex, interlinked systems (see IMAGE framework part: [[IMAGE framework/A brief history of IMAGE|A brief history of IMAGE]]). | ||
The objectives of IMAGE are as follows: | The objectives of IMAGE are as follows: | ||
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Various types of IAMs have been developed, evolving from different classes of models with a specific disciplinary focus and point of entry. These are discussed briefly in order to identify the position of IMAGE in relation to other IAM models. The common feature of all IAM models is that they all describe a combination of the Human and Earth systems to gain better understanding global environmental problems. | Various types of IAMs have been developed, evolving from different classes of models with a specific disciplinary focus and point of entry. These are discussed briefly in order to identify the position of IMAGE in relation to other IAM models. The common feature of all IAM models is that they all describe a combination of the Human and Earth systems to gain better understanding global environmental problems. | ||
IMAGE is part of the [[IAMC]], the Integrated Assessment Model Consortium. The [http://themasites.pbl.nl/models/advance/index.php/ADVANCE_wiki IAMC models] website offers an overview of a number of IAMs and their model properties. See the [http://themasites.pbl.nl/models/advance/index.php/Reference_card_-_IMAGE Reference card]] page and the [http://themasites.pbl.nl/models/advance/index.php/Special:RunQuery/Models-AttributesForm Model comparison] page. | |||
====Detail versus simplification==== | ====Detail versus simplification==== | ||
As indicated above, a key trade-off in IAMs is detail versus simplification. Sufficient detail is required to include all relevant processes in both the Human and the Earth system according to state-of-the-art knowledge. Simplicity is needed to ensure sufficient transparency in complex model systems, and to explore uncertainties. For instance, a crop growth model with data input on observed, local climate, soil layers and crop variety parameters may perform well at field scale. However, such a model is less suitable for use in an IAM that requires more generic crop growth representation operating as part of a global scale system. | As indicated above, a key trade-off in IAMs is detail versus simplification. Sufficient detail is required to include all relevant processes in both the Human and the Earth system according to state-of-the-art knowledge. Simplicity is needed to ensure sufficient transparency in complex model systems, and to explore uncertainties. For instance, a crop growth model with data input on observed, local climate, soil layers and crop variety parameters may perform well at field scale. However, such a model is less suitable for use in an IAM that requires more generic crop growth representation operating as part of a global scale system. | ||
Revision as of 15:09, 11 July 2017
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