Study of the Cryosphere of the Zeravshan and Hissar Ranges (Tien Shan)

The paper presents brief results of studying the cryosphere Zeravshan and Hissar ranges. At same time, rate change in area glaciers over past almost a hundred years presence degradation permafrost during this time were considered. actual description numerical method for estimating depth soil freezing based on data thickness snow cover air temperature was also given. An example use slopes given order to map cryolithozone According calculations, ground under remains frozen Anzob pass from December April. power accumulated can reach one half meters or more. snow-covered surface freezes according calculations by an average 1.5 m. Thus, proposed calculating dynamics made it possible assess as factor stability construction village avalanche protection structures. belongs seasonal rocks, taking into account gradient annual we conclude that appearance rocks ridge be expected at altitudes more than 4,000 meters.