noun
on the snow; snow surface
Refers to something being on top of snow or taking place on a snow-covered surface. Often used in compounds like 雪上車 (snow vehicle) or 雪上競技 (snow sports).
雪上に足跡が残っていた。
Footprints were left on the snow.
雪上車で雪山を登る。
Climb the snowy mountain in a snow vehicle.