Hi, thx for the reply - this explanation makes sense.
The "average elevation" of the models seems to raise very slowly, so at the main ridge of the Alps the temperature gets lower. While only single elevation peaks aren't mapped in these models accurate.
But by combining these model results with high resultion terrain maps (like here at windy) there should be way to extract more accurate numbers from the model.
Here's a snapshot from the meteoblue map for this area, which shows also the NEMS-4 model, but appearently maps the model results better on the terrain:
Or a simpler idea. It would already help to display the model surface elevation for a selected position. Than you could just calculate the delta from the real elevation to the model elevation and adjust the slider at the right side.