Cryosphere glossary
mountain wind
a cold wind blowing down an incline; a kind of katabatic wind.
mud circle
a type of nonsorted circle developed in fine-grained materials.
multiple retrogressive slide
a type of mass movement associated with shear failure in unfrozen sediments underlying permafrost, leading to detachment of blocks of frozen ground that move downslope.
multiyear ice
ice that has survived at least one melt season; it is typically 2 to 4 meters (6.6 to 13.1 feet) thick and thickens as more ice grows on its underside.
Image
Multiyear ice.
Ted Maksym, United States Naval Academy