Raster representing a location score for Intensive tilapia farming using cages in water bodies in the Republic of Chad. Produced under the scope of FAO’s Hand-in-Hand Initiative, Geographical Information Systems - Multi-criteria Decision Analysis (GIS-MCDA) suitability assessment.
The score is achieved by processing sub-model outputs characterizing biophysical, infrastructure, and demand factors. Criteria:
a. Market accessibility (large urban areas).
b. Crop input (CropAggGAEZ) availability of agricultural by-products.
c. Livestock input (weighted animal density aggregation) availability of livestock byproducts.
d. Tilapia potential yield.
The location score is a simple arithmetic weighted sum of normalized/scaled grids (0 to 100):
(“Accessibility MajorUrbanAreas” X 0.40) + (“CropsInput” X 0.2) + (“LivestockInput” X 0.2) + (Tilapia Yield x 0.2)
Data creation: 2023-11-27
Contact points:
Metadata Contact: FAO-Data
Resource Contact: Nelson Ribeiro
Data lineage:
Data sources, FAO Hand-in-Hand Geospatial Platform and OpenStreetMap (open data) including the following datasets:
a. Market Accessibility (urban areas) - OpenStreetMap and Atlas AI - Population Density (Africa, 2020) - Estimated total number of people per grid-cell 1km. (Urban areas = pop density>1200 habitants/km² AND area>5km²)
b. Water Balance: WaPOR (https://wapor.apps.fao.org/catalog/2) precipitation and evapotranspiration monthly time-series from 2009 to 2020 for calculating a mean water balance layer modelling values: (Precipitation X 1.1) - (evapotranspiration X 1.3)
c. Input crops - IFPRI Global Spatially-Disaggregated Crop Production Statistics Data for 2017 (MAPSPAM) - https://data.apps.fao.org/map/catalog/srv/metadata/59f7a5ef-2be4-43ee-9600-a6a9e9ff562a
d. Input livestock – GLW4 (https://data.apps.fao.org/catalog/iso/15f8c56c-5499-45d5-bd89-59ef6c026704) : weighted animal density aggregate
Resource constraints:
Creative Commons Attribution-NonCommercial-ShareAlike 3.0 IGO (CC BY-NC- SA 3.0 IGO)
Online resources:
