OGGM (Open Global Glacier Model)

Model Information Inputs Outputs Workflow

Section 1: Model Information

Name (e.g., CRHM)

OGGM

Full Name (e.g., Cold Regions Hydrological Model)

Open Global Glacier Model

Description

OGGM is a modelling framework able to simulate past and future mass balance, volume, and geometry of glaciers and it can account for glacier geometry (including contributory branches) and features several glacier evolution models, including an explicit ice dynamics module. The modeling chain comprises data downloading tools (glacier outlines, topography, climate, validation data), a preprocessing module, a mass-balance model, a distributed ice thickness estimation model, and an ice-flow model. The monthly mass balance is obtained from gridded climate data and a temperature index melt model. OGGM explicitly simulates glacier dynamics: the model relies on the shallow-ice approximation to compute the depth-integrated flux of ice along multiple connected flow lines.

https://oggm.org

https://www.doi.org/10.5194/gmd-12-909-2019

Institution

University of Innsbruck

Purpose

OGGM provides a mass balance model for glacier ice bodies.

Contact Persons

Name	Role	Contact Information
Fabien Maussion	Primary Contact	fabien.maussion@uibk.ac.at

Section 2: Inputs

Minimum Input Data

Input Data	Units (if specific or preferred)	Additional Information
Glacier outlines
Topography
Monthly temperature
Monthly precipitation

Optimal Input Data (additional to above minimal input data)

Additional Input Data	Units (if specific or preferred)	Additional Information

Calibration Data

in-situ mass balances

Validation Data

Section 3: Outputs

Model Outputs

Outputs	Additional Information
Mass balance

Processes Modelled

Processes	Additional Information

Spatial Resolution

regional to global

Temporal Resolution

Strengths and Limitations

https://docs.oggm.org/en/stable/pitfalls.html

External and Internal Tools

Source Code Availability

https://github.com/OGGM/oggm

Data Sources

File Formats

Section 4: Workflow

Model Workflow

Notes