DGM-HRTM

Gaussian atmospheric dispersion model coupled with a simplified Human Respiratory Tract Model (HRTM) for radiological exposure assessment.

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Description

This project implements:

• A Gaussian plume dispersion model for atmospheric transport of radionuclides
• Integration with meteorological data (Open-Meteo API)
• A Human Respiratory Tract Model (HRTM) for inhalation dose estimation
• Support for:
  • Worker and public exposure
  • Age-dependent dose coefficients (ICRP-based)
  • Particle properties (density, shape factor)
• Optional Mapbox-based geospatial visualization

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Installation

Clone the repository and install in editable mode:

pip install dgm-hrtm

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Usage

Run the interactive CLI:

dgm-run

You will be prompted to enter:

• Domain parameters
• Source/emission parameters
• Dispersion model settings
• Radionuclide and dose parameters
• HRTM parameters
• Meteorological configuration

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Outputs

The simulation generates:

• 2D concentration maps
• Dose maps (Sv)
• HRTM deposition results
• Figures and plots
• parameters.txt with full configuration

All outputs are stored in a RESULTS/ directory.

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Optional: Mapbox Visualization

This project includes optional support for Mapbox to display real-scale geographic backgrounds in the 2D plume plots.

To use this feature, you must provide your own Mapbox access token.

How to get a Mapbox token

• Create an account at https://www.mapbox.com
• Go to your account dashboard → Access Tokens
• Click Create a token
• Use a public token (starts with pk.)
• Copy the generated token

How to configure it

You can provide your token in two ways:

Option 1 (recommended): Environment variable

Linux / macOS:

export MAPBOX_TOKEN="your_token_here"

Windows PowerShell:

$env:MAPBOX_TOKEN="your_token_here"

Option 2: Direct configuration

If your installation includes a configuration file or constant, replace:

MAPBOX_TOKEN = "YOUR_TOKEN_HERE"

with your token.

Enable Mapbox in the simulation

Make sure the Mapbox option is enabled in your configuration:

use_mapbox = True

Notes

• The Mapbox feature is optional — the simulation works without it
• Do not share your token publicly
• If maps do not load, verify that:
  • The token is correct
  • Mapbox is enabled

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Authors

• Óscar Olmo Torrecillas
• Jorge Berenguer Antequera
• José Francisco Benavente Cuevas