First public release of GLADE (Global Land, Agriculture, Diet and Emissions),
a global food-systems optimization model built on PyPSA and Snakemake.
Added
- Configuration-driven mixed-integer linear program covering the food supply
chain from land and primary resources through crops, processing, livestock,
trade, and human nutrition. - Sub-national optimization regions created by clustering administrative units,
connected through hub-based trade networks for crops, foods, and feeds. - Spatially explicit crop production for 60+ crops with GAEZ-derived yield
potentials, multi-cropping, irrigation, and rainfed/irrigated land classes. - Livestock systems with grazing and feed-based pathways, including enteric
fermentation, manure management, and manure-application emissions. - Greenhouse-gas accounting (CO2, CH4, N2O aggregated to CO2-equivalent) for
land-use change, spared-land sequestration, rice cultivation, fertilizer use,
and residue incorporation, with configurable GWP factors. - Nutritional and food-group constraints ensuring caloric and dietary adequacy
per country, plus health-impact tracking by disease cluster. - Reproducible Snakemake workflow with data retrieval, model build, scenario
solve, analysis, and plotting targets, organized underresults/{config}/. - Five-stage calibration pipeline (feed, food waste, food demand, cost,
production stability) with git-tracked artefacts and atools/calibrate
entrypoint. - Manifest-based HPC cluster execution path for large scenario sweeps (e.g.
global sensitivity analysis) without Snakemake DAG overhead. - Automatic JSON-schema validation of configuration files.
- Comprehensive Sphinx documentation and tutorial notebooks, published to
GitHub Pages.