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Pixels with high water depth
Dear Tygron community,
After exporting waterstress (water depth) results from a digital twin for a neighborhood in Hoorn (NL), we found strange pixels with extremely high water depth of 500mm after a 40mm rainfall event. The part I don't understand is that the ground level does not really change compared to the surrounding pixels but the water depth of surrounding pixels is much lower (negligible). Another funny thing is that most of these pixels are found in small alleys and in between buildings.
Do you have an explanation for these pixels? I have made the project available for support (name: Hoorn Kersenboogerd1).
Keen to hear from you!
Below some screendumps for better understanding:
1: water depth (500mm) and ground level (-0,694) at "strange" pixel in Tygron.
2: water depth (0,9mm) and ground level (-0,692) at nearby polygon in Tygron.
3 & 4: "strange" pixels with deep water in exported result.