Observed arrival · 2026-11-05
Grenoble’s cloud sea, mapped in 3D
Cuvette.cloud maps the altitude and forecast of Grenoble’s low-cloud layer over the surrounding terrain.
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●Pro
◎Niche
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- For
- Grenoble-area residents checking cloud and sun conditions
- Worth noticing
- At night, Meteosat identifies low clouds using the difference between infrared signals at 3.8 µm and 10.5 µm.
Field notes
The method uses terrain contours to estimate where a cloud layer’s edge meets the mountains, then checks whether higher terrain is clear and how much of the valley the layer fills. The page distinguishes snow from cloud using spectral signals and notes that the background Sentinel-2 image is a summer scene without seasonal snow; current snow is handled separately.
Observed signals
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Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
✦PrettyNotable craft visible
●ProPolished or operationally mature
◎NicheUnusually specific use
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