<![CDATA[Valley height error in Soundings]]>Today, July 1, 2024, I suddenly encountered a new error in Soundings. The valley height in the valleys between the mountains is no longer displayed properly. see brown bar in the picture that ends at 900m while ground level is 650m. The height is of the surrounding mountains. See, for example, the locations of Samoens, Mieussy and Chamonix in France.

03db74d4-1398-4e2a-a2d1-675ef197aab6-image.png

]]>https://community.windy.com/topic/34091/valley-height-error-in-soundingsRSS for NodeFri, 11 Sep 2026 23:30:43 GMTMon, 01 Jul 2024 18:43:31 GMT60<![CDATA[Reply to Valley height error in Soundings on Tue, 02 Jul 2024 05:17:32 GMT]]>@Maurik
The sounding you provide, shows data from a weather model.
"Surface", on a model, may have different altitude than the real one,
because of the smoothing and depends on model's grid.

Samoens has (real) elevation 700m ...

313ac79b-b3c0-487d-bdca-fbe16c173f46-εικόνα.png

... but ECMWF (grid 9 km) treats it as in 1490 m !!!

d5dfaef9-1c06-446b-a5e6-f8091a8f3a03-εικόνα.png

... ICON-D2 (grid 2.2 km) "shows" surface at 835m (much closer to reality).

d0c8f3db-48e2-4645-b23e-d67a9673f8f4-εικόνα.png

]]>https://community.windy.com/post/193663https://community.windy.com/post/193663Tue, 02 Jul 2024 05:17:32 GMT