Can you tell me the temperature at the time you did the shot? Or at least the night before.
Because I was looking at it in full size and the left part of this "dome" is not snowed, it is literally frozen! Well after all it's too steep to hold snow on it's wall, it could hold some on cracks but that's it.
Paulo, to be perfectly honest with you, I don't remember what the temperature was the night before or even on that day. I can tell you that it was at least 10 or 15 degrees below freezing. This wall stayed frozen even the day after, both days were sunny. By the afternoon of the second day, some of the snow on the lower parts of the wall was melting.