OpenSkiStats: Shredding Data Like Powder

[!IMPORTANT] This project is currently under heavy development and is not yet ready for public consumption. If you happen to locate the results of the analyses in the meantime, please do not disseminate them before contacting the authors.

This project generates statistics on downhill ski slopes and areas from around the globe powered by the underlying OpenSkiMap/OpenStreetMap data. The first application is the creation of roses showing the compass orientations of ski areas.

Development

# download latest OpenSkiMap data
uv run openskistats download

# extract ski area metadata and metrics
uv run openskistats analyze

uv run openskistats visualize
uv run openskistats display

# quarto display
quarto render openskistats/webapp --output-dir="$(pwd)/data/webapp"
quarto preview openskistats/webapp  

# webserver for viewing http://localhost:8000
python -m http.server --directory=data/webapp

Commands that you will have to run less frequently:

# install the uv environment in uv.lock
uv sync --extra=dev

# install the pre-commit git hooks
pre-commit install

References

1. Urban spatial order: street network orientation, configuration, and entropy
   Geoff Boeing
   Applied Network Science (2019-08-23) https://doi.org/gf8srn
   DOI: 10.1007/s41109-019-0189-1

2. OSMnx: New methods for acquiring, constructing, analyzing, and visualizing complex street networks
   Geoff Boeing
   Computers, Environment and Urban Systems (2017-09) https://doi.org/gbvjxq
   DOI: 10.1016/j.compenvurbsys.2017.05.004

3. Climate change exacerbates snow-water-energy challenges for European ski tourism
   Hugues François, Raphaëlle Samacoïts, David Neil Bird, Judith Köberl, Franz Prettenthaler, Samuel Morin
   Nature Climate Change (2023-08-28) https://doi.org/gsnhbv
   DOI: 10.1038/s41558-023-01759-5

4. Vulnerability of ski tourism towards internal climate variability and climate change in the Swiss Alps
   Fabian Willibald, Sven Kotlarski, Pirmin Philipp Ebner, Mathias Bavay, Christoph Marty, Fabian V Trentini, Ralf Ludwig, Adrienne Grêt-Regamey
   Science of The Total Environment (2021-08) https://doi.org/gvzmqw
   DOI: 10.1016/j.scitotenv.2021.147054 · PMID: 33894612

5. 2022 International Report on Snow & Mountain Tourism: Overview of the key industry figures for ski resorts
   Laurent Vanat
   (2022-04) https://www.vanat.ch/international-report-on-snow-mountain-tourism
   ISBN: 9782970102892

6. SkiVis: Visual Exploration and Route Planning in Ski Resorts
   Julius Rauscher, Raphael Buchmüller, Daniel A Keim, Matthias Miller
   IEEE Transactions on Visualization and Computer Graphics (2023) https://doi.org/g8qtfb
   DOI: 10.1109/tvcg.2023.3326940 · PMID: 37874714

7. OSM Ski Resort Routing Wenzel Friedsam, Robin Hieber, Alexander Kharitonov, Tobias Rupp
   Proceedings of the 29th International Conference on Advances in Geographic Information Systems (2021-11-02) https://doi.org/g8qtf6
   DOI: 10.1145/3474717.3483628

List of related webpages:

• https://forums.alpinezone.com/threads/mountain-slopes-facing-side.11630/
• https://avalanche.org/avalanche-encyclopedia/terrain/slope-characteristics/aspect/
• https://www.onxmaps.com/backcountry/app/features/slope-aspect-map
• https://en.wikipedia.org/wiki/Aspect_(geography)
• https://gisgeography.com/aspect-map/
• https://geoffboeing.com/2018/07/comparing-city-street-orientations/
• https://verticalfeet.com/
• https://en.wikipedia.org/wiki/Comparison_of_North_American_ski_resorts
• https://www.nsaa.org/NSAA/Media/Industry_Stats.aspx

Wild Ideas

• Table of all OpenStreetMap users that have contributed to ski areas, i.e. top skiers
• Display table webpage background of falling snowflakes (examples)
• Max slope v difficulty by region
• fix matplotlib super title spacing
• How many ski areas in the world, comparing to the Vanat report
• Total combined vert of ski areas by rank of ski area (how much do big resorts drive the aggregated metrics)
• fix snowflake alignment

Upstream issue tracking

• openskimap.org/issues/82: Add slope aspect information
• openskimap.org/issues/135: ski_areas.geojson location information is missing
• openskimap.org/issues/137: Restrict coordinate precision to prevent floating-point rounding errors
• openskimap.org/issues/141: Extreme negative elevation values in some run coordinates
• openskimap.org/issues/143 Data downloads block access from GitHub Issues
• photon/issues/838 and openskimap.org/issues/139: Black Mountain of New Hampshire USA is missing location region metadata
• osmnx/issues/1137 and osmnx/pull/1139: Support directed bearing/orientation distributions and plots
• osmnx/issues/1143 and osmnx/pull/1147: _bearings_distribution: defer weighting to np.histogram
• osmnx/pull/1149: _bearings_distribution: bin_centers terminology
• patito/issues/103: Validation fails on an empty list
• patito/issues/104: Optional list field with nested model fails to validate
• polars/issues/19771: A no-op filter errors when the dataframe has an all null column
• reactable-py/issues/25: Column default sort order does not override global default
• reactable-py/issues/28: Column class_ argument only sets the dev class for the first row
• reactable-py/issues/29: Should great_tables be a dependency (currently dev dependency)

License

The code in this repository is released under a BSD-2-Clause Plus Patent License.

This project is built on data from OpenSkiMap, which is based on OpenStreetMap. OpenStreetMap and OpenSkiMap data are released under the Open Data Commons Open Database License. Learn more at https://www.openstreetmap.org/copyright.