%0 Dataset %T During 1986-2005 and 1986-2098 (rcp2.6rcp4.5rcp8.5), the permafrost data sets in the northern hemisphere were collected %J National Cryosphere Desert Data Center %I National Cryosphere Desert Data Center(www.ncdc.ac.cn) %U http://www.ncdc.ac.cn/portal/metadata/31302b03-5442-44cc-b156-51fe0041d0b7 %W NCDC %R 10.12072/ncdc.CCI.db0032.2020 %A None %K Northern hemisphere;permafrost;area %X