GEB

Coupling of an agent-based model which simulates millions individual people or households, a hydrological model, a vegetation model and a hydrodynamic model.
https://github.com/geb-model/geb

Category: Hydrosphere
Sub Category: Freshwater and Hydrology

Keywords from Contributors

hydrology

Last synced: 1 day ago
JSON representation

Repository metadata

Host: GitHub
URL: https://github.com/geb-model/geb
Owner: GEB-model
License: gpl-3.0
Created: 2022-07-11T09:56:53.000Z (over 4 years ago)
Default Branch: main
Last Pushed: 2026-11-06T15:45:08.000Z (1 day ago)
Last Synced: 2026-11-07T08:02:52.382Z (1 day ago)
Language: Python
Homepage: https://docs.geb.sh/
Size: 79.6 MB
Stars: 16
Watchers: 3
Forks: 6
Open Issues: 94
Releases: 42
Metadata Files:
- Readme: README.md
- Changelog: CHANGELOG.md
- License: LICENSE
- Citation: CITATION.cff
- Zenodo: .zenodo.json
- Agents: AGENTS.md

GEB (Geographical Environmental and Behavioural model) simulates the environment (e.g., hydrology, floods), the individual people, households and organizations as well as their interactions at both small and large scale. The model does so through a "deep" coupling of an agent-based model a hydrological model, a vegetation model and a hydrodynamic model. You can find full documentation here.

The figure below shows a schematic overview of GEB.

Schematic model overview of GEB.

Cite as

Model framework

de Bruijn, J. A., Smilovic, M., Burek, P., Guillaumot, L., Wada, Y., and Aerts, J. C. J. H.: GEB v0.1: a large-scale agent-based socio-hydrological model – simulating 10 million individual farming households in a fully distributed hydrological model, Geosci. Model Dev., 16, 2437–2454, https://doi.org/10.5194/gmd-16-2437-2023, 2023.

Applications

Bril, V. C., de Bruijn, J., de Moel, H., Sadana, T., Busker, T., Botzen, W. J. W., & Aerts, J. C. J. H.: Assessing the effectiveness of nature-based solutions and building-level flood risk reduction measures: An open-source coupled Model. Water Resources Research, 62, e2025WR041436, https://doi.org/10.1029/2025WR041436, 2026.

Kalthof, M. W. M. L., de Bruijn, J., de Moel, H., Kreibich, H., and Aerts, J. C. J. H.: Adaptive behavior of farmers under consecutive droughts results in more vulnerable farmers: a large-scale agent-based modeling analysis in the Bhima basin, India, NHESS, https://doi.org/10.5194/nhess-25-1013-2025, 2025.

Building on the shoulders of giants

Burek, Peter, et al. "Development of the Community Water Model (CWatM v1.04) A high-resolution hydrological model for global and regional assessment of integrated water resources management." (2019).
Langevin, Christian D., et al. Documentation for the MODFLOW 6 groundwater flow model. No. 6-A55. US Geological Survey, 2017.
Tierolf, Lars, et al. "A coupled agent-based model for France for simulating adaptation and migration decisions under future coastal flood risk." Scientific Reports 13.1 (2023): 4176.
Streefkerk, Ileen N., et al. "A coupled agent-based model to analyse human-drought feedbacks for agropastoralists in dryland regions." Frontiers in Water 4 (2023): 1037971.
Joshi, Jaideep, et al. "Plant-FATE-Predicting the adaptive responses of biodiverse plant communities using functional-trait evolution." EGU General Assembly Conference Abstracts. 2022.
Leijnse, Tim, et al. "Modeling compound flooding in coastal systems using a computationally efficient reduced-physics solver: Including fluvial, pluvial, tidal, wind-and wave-driven processes." Coastal Engineering 163 (2021): 103796.

FAQ

How is GEB pronounced?

It’s pronounced as "geb" (/ɡɛb/), with the "g" as in "get" or "gate", aligning with how ancient Egyptians would have likely pronounced the name of their god of the Earth: Geb.

Citation (CITATION.cff)

cff-version: 1.2.0
message: "If you use this software, please cite it as below."
title: "GEB"
authors:
  - family-names: "de Bruijn"
    given-names: "Jens"
  - family-names: "Kalthof"
    given-names: "Maurice"
  - family-names: "Bril"
    given-names: "Veerle"
  - family-names: "Tierolf"
    given-names: "Lars"
  - family-names: "Sadana"
    given-names: "Tarun"
  - family-names: "Stefaniak"
    given-names: "Elisa"
  - family-names: "Busker"
    given-names: "Tim"
  - family-names: "Oliveira"
    given-names: "Rafaella"
  - family-names: "Carral"
    given-names: "Carolina"
  - family-names: "Pontman"
    given-names: "Roy"
  - family-names: "van Amelsvoort"
    given-names: "Lisanne"
  - family-names: "Kiesel"
    given-names: "Joshua"
preferred-citation:
  type: article
  authors:
    - family-names: "de Bruijn"
      given-names: "J. A."
    - family-names: "Smilovic"
      given-names: "M."
    - family-names: "Burek"
      given-names: "P."
    - family-names: "Guillaumot"
      given-names: "L."
    - family-names: "Wada"
      given-names: "Y."
    - family-names: "Aerts"
      given-names: "J. C. J. H."
  doi: "10.5194/gmd-16-2437-2023"
  journal: "Geoscientific Model Development"
  month: 9
  start: 2437
  end: 2454
  title: "GEB a large-scale agent-based socio-hydrological model -- simulating 10 million individual farming households in a fully distributed hydrological model"
  issue: 9
  volume: 16
  year: 2023
  url: "https://gmd.copernicus.org/articles/16/2437/2023/"

Owner metadata

Name: GEB-model
Login: GEB-model
Email: jens.de.bruijn@vu.nl
Kind: organization
Description:
Website:
Location:
Twitter:
Company:
Icon url: https://avatars.githubusercontent.com/u/152297940?v=4
Repositories: 1
Last ynced at: 2026-11-06T16:13:30.027Z
Profile URL: https://github.com/GEB-model

GitHub Events

Total

Create event: 239
Delete event: 230
Fork event: 2
Issue comment event: 72
Issues event: 187
Member event: 4
Pull request event: 247
Pull request review comment event: 347
Pull request review event: 183
Push event: 2027
Release event: 5
Watch event: 5

Last Year

Create event: 142
Delete event: 146
Fork event: 2
Issue comment event: 18
Issues event: 43
Pull request event: 73
Pull request review comment event: 271
Pull request review event: 126
Push event: 1012
Release event: 2

Committers metadata

Last synced: 2 days ago

Total Commits: 5,408
Total Committers: 19
Avg Commits per committer: 284.632
Development Distribution Score (DDS): 0.299

Commits in past year: 2,344
Committers in past year: 14
Avg Commits per committer in past year: 167.429
Development Distribution Score (DDS) in past year: 0.43

Name	Email	Commits
Jens de Bruijn	j**n@o**m	3789
Tierolf	l**f@h**m	768
Maurice	m**f@g**m	291
Tim Busker	t****l	185
Veerle Bril	v**l@v**l	110
T-Sadana	t**a@v**l	103
Rafaella	r**o@g**m	54
TimBusker	8****r	42
Roy Pontman	r**n@v**l	23
Elisa Stefaniak	e**a@f**m	12
Lisanne van Amelsvoort	l**t@v**l	8
copilot-swe-agent[bot]	1****t	4
jkiesel1988	j**l@w**e	4
Tierolf	l**0@n**r	4
Carolina Ferman	c**l@v**l	3
Tierolf	l**0@n**r	3
Tierolf	l**0@n**r	3
Jens de Bruijn	j**n@o**m	1
Guo-icloud	2**6@q**m	1

Committer domains:

Issue and Pull Request metadata

Last synced: 2 days ago

Total issues: 371
Total pull requests: 737
Average time to close issues: 3 months
Average time to close pull requests: 4 days
Total issue authors: 10
Total pull request authors: 18
Average comments per issue: 0.67
Average comments per pull request: 0.24
Merged pull request: 613
Bot issues: 0
Bot pull requests: 25

Past year issues: 158
Past year pull requests: 415
Past year average time to close issues: 22 days
Past year average time to close pull requests: 5 days
Past year issue authors: 10
Past year pull request authors: 15
Past year average comments per issue: 0.79
Past year average comments per pull request: 0.36
Past year merged pull request: 349
Past year bot issues: 0
Past year bot pull requests: 24

More stats: https://issues.ecosyste.ms/repositories/lookup?url=https://github.com/geb-model/geb

Top Issue Authors

jensdebruijn (244)
ltierolf (47)
TimBusker (26)
WMLKalthof (24)
T-Sadana (15)
jkiesel1988 (5)
Huazhi-Li (4)
vcbril (3)
roy-pontman (2)
keul (1)

Top Pull Request Authors

jensdebruijn (354)
ltierolf (161)
TimBusker (62)
vcbril (30)
WMLKalthof (26)
T-Sadana (26)
dependabot[bot] (24)
romijnservaas (12)
roy-pontman (10)
rafaellaglo (9)
Copilot (6)
jkiesel1988 (5)
FC-Caro (4)
Lisanneva (3)
foxeswithdata (2)

Top Issue Labels

enhancement (92)
bug (57)
Disk space (6)
Upscaling (4)
Nice to have (3)
performance (2)
invalid (2)
Forecasts (2)
documentation (2)
Usability (1)
RAM (1)
Future-bug (1)
question (1)

Top Pull Request Labels

dependencies (24)
python:uv (23)
github_actions (1)

Package metadata

Total packages: 4
Total downloads:
- pypi: 743 last-month
Total dependent packages: 0 (may contain duplicates)
Total dependent repositories: 0 (may contain duplicates)
Total versions: 46
Total maintainers: 2

proxy.golang.org: github.com/geb-model/geb

Homepage:
Documentation: https://pkg.go.dev/github.com/geb-model/geb#section-documentation
Licenses: gpl-3.0
Latest release: v0.1.1 (published over 3 years ago)
Last Synced: 2026-11-06T07:42:55.413Z (2 days ago)
Versions: 1
Dependent Packages: 0
Dependent Repositories: 0
Rankings:
- Dependent packages count: 5.395%
- Average: 5.576%
- Dependent repos count: 5.758%

proxy.golang.org: github.com/GEB-model/GEB

Homepage:
Documentation: https://pkg.go.dev/github.com/GEB-model/GEB#section-documentation
Licenses: gpl-3.0
Latest release: v0.1.1 (published over 3 years ago)
Last Synced: 2026-11-06T07:42:55.576Z (2 days ago)
Versions: 1
Dependent Packages: 0
Dependent Repositories: 0
Rankings:
- Dependent packages count: 5.395%
- Average: 5.576%
- Dependent repos count: 5.758%

pypi.org: geb

GEB simulates the environment (e.g., hydrology, floods), the individual people, households and orginizations as well as their interactions at both small and large scale.

Homepage:
Documentation: https://geb.readthedocs.io/
Licenses: GNU General Public License v3 (GPLv3)
Latest release: 0.4 (published 2 months ago)
Last Synced: 2026-11-06T03:46:12.280Z (2 days ago)
Versions: 37
Dependent Packages: 0
Dependent Repositories: 0
Downloads: 264 Last month
Rankings:
- Dependent packages count: 10.637%
- Downloads: 15.074%
- Average: 28.538%
- Dependent repos count: 59.903%
Maintainers (2)
- jensdebruijn
- tim_busker

pypi.org: geb-model

GEB simulates the environment, the individual behaviour of people, households and organizations - including their interactions - at small and large scale.

Homepage:
Documentation: https://geb-model.readthedocs.io/
Licenses: GNU General Public License v3 (GPLv3)
Latest release: 1.0.0a8 (published about 2 years ago)
Last Synced: 2026-11-06T03:46:11.891Z (2 days ago)
Versions: 7
Dependent Packages: 0
Dependent Repositories: 0
Downloads: 479 Last month
Rankings:
- Dependent packages count: 10.471%
- Average: 34.71%
- Dependent repos count: 58.949%
Maintainers (1)
- jensdebruijn

Dependencies

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hydromt-sfincs @git+https://github.com/Deltares/hydromt_sfincs
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Score: 14.249171079775143

ecosyste.ms

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GEB

Keywords from Contributors

Repository metadata

README.md

Cite as

Model framework

Applications

Building on the shoulders of giants

FAQ

Citation (CITATION.cff)

Owner metadata

GitHub Events

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Last Year

Committers metadata

Committer domains:

Issue and Pull Request metadata

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Top Pull Request Authors

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Package metadata

proxy.golang.org: github.com/geb-model/geb

proxy.golang.org: github.com/GEB-model/GEB

pypi.org: geb

pypi.org: geb-model

Dependencies