DEM & Terrain Analysis

Elevation data from Copernicus DEM, SRTM, and OpenTopography.

Grand Canyon

1,844m of relief from the Colorado River to the rim.

Run it:

export OPENTOPO_API_KEY=your_key_here
python examples/scripts/opentopo_grand_canyon_demo.py

What it demonstrates: - OpenTopography API integration (SRTM GL1 30m) - Hillshade computation with configurable sun position - Elevation cross-section profile - High-contrast annotation lines (WCAG 2.1 AA)

Swiss Alps — Matterhorn

Alpine terrain from Copernicus DEM 30m with statistics sidebar.

Run it:

export OPENTOPO_API_KEY=your_key_here
python examples/scripts/opentopo_swiss_alps_demo.py

Hawaii Volcanoes

Kilauea and Mauna Loa volcanic terrain.

Run it:

export OPENTOPO_API_KEY=your_key_here
python examples/scripts/opentopo_hawaii_volcano_demo.py

Denali, Alaska — DEM Statistics

Elevation histogram and statistics from the Alaska Range.

Run it:

python examples/scripts/stac_copdem_alaska_demo.py