Sun · 315° · 40°
Mast · 30 m
01 · Elevation model · ASTER GDEM v3
02 · Hillshade · computed
03 · Contours · computed
04 · Land cover · undefined
05 · Stations · 3 in the tile
06 · AI layer · simulated
51.6094° N · 116.4375° W
51.1875° N · 116.0156° W
3,469 m · highest cell
Bow River At Lake Louise · ECCC
Pipestone River Near Lake Louise · ECCC
Weather station · NOAA ISD
Elevation: NASA/METI/AIST/Japan Spacesystems and U.S./Japan ASTER Science Team, ASTER GDEM v3 (via NASA GIBS) — repository terrain extract, decoded and smoothed.
Earth observation & GeoAI · Showcase
Interactive
A real elevation model of the Bow Valley at Lake Louise, Alberta, read the way geospatial pipelines read the planet: relief, light, line of sight, an orbit swath, a GeoAI pass, a geodesic grid and a registered stack.
01 · Elevation
The elevation grid as a hidden-line mesh. Contours are traced by marching squares; every fifth is an index contour. Hover the terrain to read a height and trace its contour in red.
Steps: 20 · 25 · 40 · 50 · 100 · 200 m. Index contour every 5th line.02 · Light and slope
Hillshade and slope come from the elevation gradient at every pixel, drawn as line work: a line screen for light, cross-hatching for steepness, or illuminated contours.
Rendering
N
E
S
W
Sun azimuth
Drag the dial, or focus it and use the arrow keys.Slope classes, share of the tile
0–10°
23.8 %
10–20°
29.1 %
20–30°
25.2 %
30–40°
15.7 %
40°+
6.2 %
03 · Viewshed
Click the terrain to place a mast. Rays from the antenna to every edge cell test line of sight across the grid, with Earth curvature and standard refraction (k = 0.13), for a receiver 2 m above the ground.
Place on
Or click the terrain. With the 3D view focused, arrow keys move the mast 500 m.04 · Satellite pass
A sensor on a sun-synchronous orbit sweeps its swath down the valley. Optical shows real HLS imagery of 21 August 2025 as a line screen. SAR shows backscatter modelled from the terrain geometry, with layover and shadow.
Sensor
Satellites in the constellation
05 · GeoAI
Candidate slopes are computed from the elevation grid. The detection boxes and their scores show how a model’s output is filtered by confidence and reviewed. A method demonstration on real terrain, not a hazard assessment.
06 · Geodesic grid
Open-network station positions are aggregated, in your browser, into the geodesic cells of a Goldberg polyhedron, the same idea as H3 hexagons. Filter by domain; extrude by count. Drag the globe to turn it.
Domain
Cells
Extrusion and fill on a log scale of the station count.07 · Layers
Registered stack
Every layer on this page sits on the same grid. Scroll to pull the stack apart and put it back together, or hold it apart. Toggle a layer to see what it adds.
Stack
A real elevation model of the Bow Valley at Lake Louise, Alberta, read the way geospatial pipelines read the planet: relief, light, line of sight, an orbit swath, a GeoAI pass, a geodesic grid and a registered stack.
The elevation grid as a hidden-line mesh. Contours are traced by marching squares; every fifth is an index contour. Hover the terrain to read a height and trace its contour in red.
Hillshade and slope come from the elevation gradient at every pixel, drawn as line work: a line screen for light, cross-hatching for steepness, or illuminated contours.
Click the terrain to place a mast. Rays from the antenna to every edge cell test line of sight across the grid, with Earth curvature and standard refraction (k = 0.13), for a receiver 2 m above the ground.
A sensor on a sun-synchronous orbit sweeps its swath down the valley. Optical shows real HLS imagery of 21 August 2025 as a line screen. SAR shows backscatter modelled from the terrain geometry, with layover and shadow.
Candidate slopes are computed from the elevation grid. The detection boxes and their scores show how a model’s output is filtered by confidence and reviewed. A method demonstration on real terrain, not a hazard assessment.
Open-network station positions are aggregated, in your browser, into the geodesic cells of a Goldberg polyhedron, the same idea as H3 hexagons. Filter by domain; extrude by count. Drag the globe to turn it.
Every layer on this page sits on the same grid. Scroll to pull the stack apart and put it back together, or hold it apart. Toggle a layer to see what it adds.
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