Difference between revisions of "Spatial schematization"

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[[File:Flowchart_mcyfs_spatial_mapping.jpg|thumb|right|200px|Spatial schematization. Intersection of weather map (25x25 km grid cells), soil map (SMU's) and administrative regions (NUTS level 3.]]
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The crop models in MCYFS where originally developed to simulate crop yield for a single location (or region) where weather, soil and crop characteristics are assumed homogeneous. To apply the crop models on a large scale the models have to be run for every location with a unique set of weather, soil and crop characteristics. The weather and spatial and temporal crop characteristics are assumed to be homogeneous per grid cell. The soil characteristics are assumed to be homogeneous per {{Gloshint|STU|Soil Typologic Unit.|STU}}. In other words: the crop models have to be run for every unique combination of grid cell and STU. These combinations are called simulation units.
  
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To be able to aggregate model output to administrative regions it is necessary to know the relation between simulation units and administrative regions. For this purpose {{Gloshint|EMU|Elementary Mapping Unit.|EMU}}'s are created which results from intersecting the weather map (25x25 km grid cell), soil map ({{Gloshint|SMU|Soil Mapping Unit.|SMU}}'s), and administrative regions map ({{Gloshint|NUTS|Nomenclature des Unités Territoriales Statistiques. |NUTS}} level 3).
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|Hidden text in expert style
 
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[[Category:Crop Simulation]]
 
[[Category:Crop Simulation]]

Revision as of 17:45, 24 January 2011

Spatial schematization. Intersection of weather map (25x25 km grid cells), soil map (SMU's) and administrative regions (NUTS level 3.

The crop models in MCYFS where originally developed to simulate crop yield for a single location (or region) where weather, soil and crop characteristics are assumed homogeneous. To apply the crop models on a large scale the models have to be run for every location with a unique set of weather, soil and crop characteristics. The weather and spatial and temporal crop characteristics are assumed to be homogeneous per grid cell. The soil characteristics are assumed to be homogeneous per STU. In other words: the crop models have to be run for every unique combination of grid cell and STU. These combinations are called simulation units.

To be able to aggregate model output to administrative regions it is necessary to know the relation between simulation units and administrative regions. For this purpose EMU's are created which results from intersecting the weather map (25x25 km grid cell), soil map (SMU's), and administrative regions map (NUTS level 3).