User Tools

Site Tools


the_complete_and_consistent_data_base_coco_for_the_national_scale

Differences

This shows you the differences between two versions of the page.

Link to this comparison view

Both sides previous revisionPrevious revision
Next revisionBoth sides next revision
the_complete_and_consistent_data_base_coco_for_the_national_scale [2020/02/13 07:55] – [COCO2: Data Preparation] matszthe_complete_and_consistent_data_base_coco_for_the_national_scale [2020/02/13 07:56] – [COCO1 Estimation procedure] matsz
Line 490: Line 490:
 This procedure has developed as a path dependent compromise between computation time and presumed quality. It starts with an estimation of land use in combination with agricultural land balance, including the land transition between LU classes. This determines the utilisable agricultural area (UAA) and non-agricultural land use. Step 2 distributes crop areas within the fixed UAA from step 1 and estimates crop production and yields. Step 3 only tackles the complete animal sector data (activities, markets, EAA). The crop production is taken as given, when market balance and EAA are estimated for the crops and derived processed products (step 4). However, with all steps completed some final checks may modify the results (e.g. delete tiny activity levels or estimate another crop area from another crop output value and thus change the UAAR). Furthermore the crop estimation may have slightly changed the ratio of cropland to productive grassland. Therefore the accounting identities ensured in steps 1 are not necessarily fulfilled in a strict sence anymore. Hence a final reconciliation of land use is added for full consistency: This procedure has developed as a path dependent compromise between computation time and presumed quality. It starts with an estimation of land use in combination with agricultural land balance, including the land transition between LU classes. This determines the utilisable agricultural area (UAA) and non-agricultural land use. Step 2 distributes crop areas within the fixed UAA from step 1 and estimates crop production and yields. Step 3 only tackles the complete animal sector data (activities, markets, EAA). The crop production is taken as given, when market balance and EAA are estimated for the crops and derived processed products (step 4). However, with all steps completed some final checks may modify the results (e.g. delete tiny activity levels or estimate another crop area from another crop output value and thus change the UAAR). Furthermore the crop estimation may have slightly changed the ratio of cropland to productive grassland. Therefore the accounting identities ensured in steps 1 are not necessarily fulfilled in a strict sence anymore. Hence a final reconciliation of land use is added for full consistency:
    
-**Figure 3Overview on main estimations in for the consolidation of national data in Europe (in coco1.gms)**+**Figure 3Overview on main estimations in for the consolidation of national data in Europe (in coco1.gms)**
  
 {{::figure3.png?600|}} {{::figure3.png?600|}}
the_complete_and_consistent_data_base_coco_for_the_national_scale.txt · Last modified: 2022/11/07 10:23 by 127.0.0.1

Except where otherwise noted, content on this wiki is licensed under the following license: CC0 1.0 Universal
CC0 1.0 Universal Donate Powered by PHP Valid HTML5 Valid CSS Driven by DokuWiki