DisSModel

A Python ecosystem for reproducible discrete spatial simulation and land-change modelling. An independent alternative to INPE's TerraME/LuccME, which remain the reference: every package is checked against their outputs.

pip install dissmodel

📖 Documentation · 🗺️ Repository map · 📦 PyPI · 📝 Under review at JOSS · DOI 10.5281/zenodo.23246106

From open data to a verified model, in code anyone can run.

Packages

Package	What it does
dissmodel	Core: models, raster and vector backends, a declarative executor, and experiment records with checksums, specs and Git provenance.
disscube	Declarative pipelines that turn open geospatial data into model-ready grids.
disslucc	Land use and cover change: continuous and discrete allocation.
dissmodel-ca · dissmodel-sysdyn · dissmodel-abm	Extensions: cellular automata, system dynamics and agent-based models.
haloexec	Out-of-core execution of cellular automata on rasters larger than memory.
dissmodel-configs	Registry of external executors (TOML, reviewed by pull request).

Case study: brmangue-dissmodel (sea-level rise and mangroves) and its QGIS interface.
Experimental: dissmodel-platform, a prototype execution platform (JupyterLab, FastAPI, workers, S3-compatible storage).

How it is checked

The reference outputs of TerraME and LuccME, and the benchmarks that compare each package against them, live in the LambdaGeo organization: terrame-goldens, luccme-goldens, disscube-benchmark and disslucc-benchmark. The open-lucc-workflow shows a complete traceable experiment from open data.

Developed by the LambdaGeo research group at the Federal University of Maranhão (UFMA). Led by Sérgio Souza Costa.

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dissmodel

Public

Python framework for reproducible discrete spatial simulation: models, raster and vector backends, a declarative executor and verifiable experiment records.

Python 11 3

dissmodel-ca

Public

Cellular Automata (CA) library and examples for dissmodel, supporting GeoDataFrame-based (vector) and NumPy-based (raster) models, with interactive Streamlit explorers.

Python 1

dissmodel-sysdyn

Public

Classic System Dynamics models (SIR, Lorenz, Predator-Prey) built on dissmodel. Includes interactive Streamlit explorers and CLI tools.

Python 1

disscube

Public

Declarative pipelines that turn open geospatial data into model-ready grids for DisSModel, with a spatial data catalog and raster derivation.

Python

dissmodel-abm

Public

Agent-Based Modeling extension for dissmodel, with a Society/Agent API inspired by TerraME. Includes RandomWalk, PredatorPrey, and Schelling models.

Python

disslucc

Public

Land Use and Cover Change (LUCC) modeling — continuous and discrete allocation — on top of dissmodel

Python

GeezerVison

DisSModel

Packages

How it is checked

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