Snow-Drift Talik Transect

This simulation runs the same Stefan-equation freeze-thaw physics as a single soil-column model, but across an entire landscape transect at once: dozens of independent soil columns, each seeing the same air temperature and soil moisture but a different local snow depth drawn from a fixed wind-redistribution pattern (a scoured patch and a deep lee-side drift). The result is a 2D depth-vs-position field that shows something a single column cannot — that a persistent talik is often a patchy, drift-controlled phenomenon, forming under deep snow pockets even while nearby scoured ground freezes solid every winter.