<P> In geology , permafrost is ground , including rock or ( cryotic ) soil , at or below the freezing point of water 0 ° C ( 32 ° F ) for two or more years . Most permafrost is located in high latitudes ( in and around the Arctic and Antarctic regions ) , but at lower latitudes alpine permafrost occurs at higher elevations . Ground ice is not always present , as may be in the case of non-porous bedrock , but it frequently occurs and it may be in amounts exceeding the potential hydraulic saturation of the ground material . Permafrost accounts for 0.022 % of total water on Earth and exists in 24 % of exposed land in the Northern Hemisphere . It also occurs subsea on the continental shelves of the continents surrounding the Arctic Ocean , portions of which were exposed during the last glacial period , with global weather implications . </P>
<P> In geology , permafrost is ground , including rock or ( cryotic ) soil , at or below the freezing point of water 0 ° C ( 32 ° F ) for two or more years . Most permafrost is located in high latitudes ( in and around the Arctic and Antarctic regions ) , but at lower latitudes alpine permafrost occurs at higher elevations . Ground ice is not always present , as may be in the case of non-porous bedrock , but it frequently occurs and it may be in amounts exceeding the potential hydraulic saturation of the ground material . Permafrost accounts for 0.022 % of total water on Earth and exists in 24 % of exposed land in the Northern Hemisphere . It also occurs subsea on the continental shelves of the continents surrounding the Arctic Ocean , portions of which were exposed during the last glacial period , with global weather implications . </P>
where do the permafrost soil found in asia
where do the permafrost soil found in asia
at higher elevations in high latitudes
at higher elevations in high latitudes