Summers in Shetland are usually showery, bright and cool, winters dark and wild, but also mild. The climate's slightly warmer than the Gulf of Alaska, which lies on the same 60th parallel of latitude. On the fine days, which can occur at any time of year, the islands appear idyllic; in winter hurricanes they're awe-inspiring. But, having said that, when the weather's good you can have a beach all to yourself.
Deposition is the process that follows erosion. Erosion is the removal of particles (rock, sediment etc.) from a landscape, usually due to rain or wind. Deposition begins when erosion stops; the moving particles fall out of the water or wind and settle on a new surface. This is deposition.
Substrate. Definition. noun, plural: substrates. (geology). A substratum or an underlying stratum. (chemistry). The substance acted upon by an enzyme. (biology). The earthy material in which an organism lives, or the surface or medium on which an organism grows or is attached. (marine biology). The material (e.g. dirt, rocks, sand, gravel) in the bottom of a marine habitat, or one that forms the bed of a stream (or of an aquarium); the source of food for some microorganisms. Supplement. Word origin: L. Stratum = layer.