Algorithm for the disaggregation of crop area statistics in the MARS crop yield forecasting system
Update 2024
This report describes the algorithm to disaggregate regional crop area statistics in Europe, at all NUTS and GAUL administrative levels and onto a regular grid of 25 km. This algorithm is necessary to aggregate crop indicators in the MARS Crop Yield Forecasting System (MCYFS) from the original resolution of the BioMA-WOFOST crop model resolution at EMU and 25 km grid cells to national and sub-national scale when using these indicators operationally for crop yield forecasting (e.g. MARS Bulletins). The algorithm uses as input crop area statistics from Eurostat and national statistical services delivered from the Member States, and land cover. Rules and operations are set to construct, combining the mentioned sources, the full hierarchical system of regional weights per crop and year, expressing the proportion of crop area in every single spatial unit (region or grid) of the total national crop area. These regional weights provide, when multiplied by the national figures, the distribution of crop areas over Europe at grid and at administrative levels. Moreover, it can be used in the spatial aggregation or disaggregation of any crop indicator based on crop area. The current disaggregation is available up to 2022 and is based on weights derived from subnational statistics available till 2020.
CERRANI Iacopo;
RONCHETTI Giulia;
NISINI Luigi;
LÓPEZ LOZANO Raúl;
VAN DER VELDE Marijn;
2024-11-26
Publications Office of the European Union
JRC135317
978-92-68-21623-1 (online),
1831-9424 (online),
EUR 40100,
OP KJ-01-24-125-EN-N (online),
https://publications.jrc.ec.europa.eu/repository/handle/JRC135317,
10.2760/5555881 (online),
Additional supporting files
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