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GLAMoR

3D CFD Simulations of Glacial Lake Outburst Floods Using OpenFOAM

This document outlines the core elements of the workflow used in Work Package 3 of the project Future Glacial Lakes in High Mountain Asia – Modeling and Risk Analysis (GLAMoR).
It supports the results presented in:

Furian and Sauter (2025)
Natural Hazards and Earth System Sciences (NHESS) [citation pending]

⚠️ About this Guide

This is not a fully executable, step-by-step script.
Instead, it provides a structured overview with code snippets, commands, and explanatory notes for key steps involved in:

  • Preparing digital elevation data
  • Delineating glacial lakes
  • Generating 3D meshes
  • Defining breach scenarios
  • Setting up and running hydrodynamic simulations in OpenFOAM

🧩 Required Input Data

To apply this workflow, the following input data are required:

  • A digital elevation model (DEM) with sufficient resolution (e.g., ALOS PALSAR at 12.5 m)
  • Vector outlines of the glacial lakes (e.g., shapefiles) serving as GLOF origins
  • lake bathymetry data (or ice-thickness data for calculating the lake volume)

🛠 Software Requirements

The following software stack has been tested and is recommended for running the workflow:

Software Version Purpose
OpenFOAM 2112 3D computational fluid dynamics (CFD) simulation
ParaView 5.11.0 Visualization and postprocessing
Python 3.8 Preprocessing and postprocessing scripts
C++ 11 Required for OpenFOAM solvers

💡 The code is written in both Python and C++.

💻 System Setup and HPC Access

While small test cases may be run locally, access to a high-performance computing (HPC) cluster is highly recommended for full-scale simulations. When using a Windows setup, the following tools are helpful:

  • PuTTY – for secure SSH terminal access to the remote server
  • WinSCP – for file transfer between the local machine and the server

Make sure that OpenFOAM is correctly installed and configured on the HPC system.

Repository

Code and materials are hosted at:
👉 https://github.com/cryotools/GLOF-simulations

For background on the overall GLAMoR project, see:
🌐 https://hu-berlin.de/glamor

📄 Licensing and Contributions

This code is free to use and adapt for non-commercial purposes.
If you use this workflow, please cite the original work, e.g., for version 1.0:

Furian, W. and Sauter, T. (2025): cryotools/GLOF-modeling: 3D CFD GLOF modeling using OpenFOAM, version: v1.0. DOI

You are welcome to contribute:

  • Fork the repository
  • Commit your modifications
  • Submit a pull request

📬 Contact

For questions or collaboration inquiries, please contact:
W. Furian, ORCID: 0000-0001-7834-2500