Useful outputs

This page lists some datasets that are either generated or used by OGGM and that can be useful to others.

Shapefiles of glacier centerlines, flowlines and widths

These variables are a standard output of OGGM, and can be useful to many. You will find the files here: https://cluster.klima.uni-bremen.de/~oggm/gdirs/oggm_v1.6/L1-L2_files/centerlines/RGI62/b_010/L2/summary

Note

Note that centerlines computed by OGGM are now a standard product for RGI version 7! Check out the RGI User Guide

The following files are available:

• centerlines: the geometrical centerlines

• centerlines_smoothed: the geometrical centerlines smoothed to look nicer and guaranteed to match the glacier outlines (not used in the model but useful outside of it)

• flowlines: the centerlines converted to “flowlines”, i.e. interpolated to a regular grid and where upslope trajectories are cropped

• geom_widths: the geometrical intersection of the flowlines’ normals with the glacier outlines

• widths: the geometrical widths corrected to reflect the glacier’s elevation-area distribution

If you use these data, please cite Maussion et al. (2019).

Shapefile of OGGM’s flowlines and widths for a subset of RGI region 15

Useful data tables

These data are tabular summary from available global datasets:

• https://cluster.klima.uni-bremen.de/~oggm/rgi/rgi62_stats.h5: the global RGI stripped from the geometries

• https://cluster.klima.uni-bremen.de/~oggm/g2ti/rgi62_itmix_df.h5: ice volumes from Farinotti et al. (2019] in tabular form

• https://cluster.klima.uni-bremen.de/~oggm/geodetic_ref_mb/hugonnet_2021_ds_rgi60_pergla_rates_10_20_worldwide_filled.hdf: glacier geodetic mass balance data from Hugonnet et al. (2021) corrected for RGI region 12 and missing glaciers, in tabular form

• an example of OGGM output summary from the pre-processed directories. Useful outputs include terminus position, topographical variables, etc.

HDF files can be read with pandas’ read_hdf function.