OGGM tutorials

If you are new to jupyter notebooks or to jupyterlab, we recommend to have a look at our introduction to jupyter notebooks first!

If you are reading this from our webpage (https://oggm.org/tutorials), remember that each page displayed here is in fact a jupyter notebook! You can start an interactive version of these tutorials online with MyBinder by clicking on the “launch button” on the top right of this page (the little rocket 🚀).

Ready to go?

10 minutes tutorials

These new tutorials are designed to illustrate one single OGGM concept at a time. They are a good way to get started with OGGM, or for returning users to learn about new features!

• 10 minutes to… a preprocessed directory (start with this tutorial if you are new to OGGM)

• 10 minutes to… a glacier change projection with GCM data

• 10 minutes to… OGGM as an accelerator for modelling and machine learning

• 10 minutes to… the new dynamical spinup in OGGM v1.6

OGGM workflow

• Working with the RGI files and prepare glaciers for a run

• Storing glacier directories for later use

• Dealing with errors after a run

• Differences between the “elevation band” and “centerline” flowlines

• Step-by-Step guide to building preprocessed directories from scratch

• What’s in my preprocessed directories? A full centerlines workflow, step by step

Mass balance

• Plotting the OGGM surface mass-balance, the ELA and AAR

• A look into the new mass balance calibration in OGGM v1.6

• Global distribution of the mass-balance model parameters

• Mass balance parameter perturbation experiments with OGGM

Hydrological output

• Hydrological mass-balance output

Dynamical runs

• Run with a long spinup and GCM data

• Dynamic spinup and dynamic melt_f calibration for past simulations

• Understand the difference between the ice dynamic solvers in OGGM

• “Instructed OGGM”: running IGM within the OGGM workflow

Ice thickness

• Ice thickness inversion

• Dynamic model initialization using observed thickness data

Calving

• The Oerlemans & Nick frontal ablation parameterization in OGGM

OGGM shop and additional data

• OGGM-Shop and Glacier Directories in OGGM

• Using your our own glacier inventory with OGGM

• Ingest gridded products such as ice velocity into OGGM

• Create local topography maps from different DEM sources with OGGM

• Compare different DEMs for individual glaciers: RGI-TOPO for RGI v6.0

• RGI-TOPO for RGI 7.0

Visualisation and post-processing

• Display glacier area and thickness changes on a grid

• OGGM flowlines: where are they?

• Compute smoother centerlines for shapefile output

• Error analysis of the global pre-processing workflow

• Merge, analyse and visualize OGGM GCM runs

• Small overview of HoloViz capability of data exploration

Tutorials in (re-)construction

• Ice thickness inversion with frontal ablation

• Filter the glacier length and area time series

Have fun learning OGGM!

Package versions used to build this documentation:

# Package versions
from oggm.utils import show_versions
print(show_versions())

# OGGM environment: 
## System info:
    python: 3.11.9.final.0
    python-bits: 64
    OS: Linux
    OS-release: 6.5.0-1025-azure
    machine: x86_64
    processor: x86_64
## Packages info:
    oggm: 1.6.2
    numpy: 1.26.4
    scipy: 1.14.1.dev0+1404.a959627
    pandas: 2.2.2
    geopandas: 1.0.1
    netCDF4: 1.7.1.post1
    matplotlib: 3.9.1
    rasterio: 1.3.10
    fiona: 1.9.6
    pyproj: 3.6.1
    shapely: 2.0.5
    xarray: 2024.6.0
    dask: 2024.7.0
    salem: 0.3.12.dev1+gc87cad1
    OGGM git identifier: 84db2c84c4b2c6a9f9e101b501a049bd76af94df