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《Journal of Glaciology and Geocryology》 2018-02
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The global glacierized area: current situation and recent change,based on the Randolph Glacier Inventory(RGI 6.0) published in 2017

MU Jianxin;LI Zhongqin;ZHANG Hui;LIANG Pengbin;College of Geography and Environment Sciences,Northwest Normal University;State Key Laboratory of Cryospheric Science/Tianshan Glaciological Station,Northwest Institute of Eco-Environment and Resources,Chinese Academy of Sciences;University of Chinese Academy of Sciences;  
Based on the Randolph Glacier Inventory(RGI 6. 0) published in 2017,current situation and recent change of global glacierized area were analyzed with reference to the statistics of glacierized area change in 16 first-order glacier regions of RGI. The results showthat there are 215 547 glaciers covering an area of 705 739 km~2 all around the world(excluding the Antarctic and Greenland ice sheets),with an uncertainty of 4. 2%. The number of glaciers with the area below1 km~2 reaches 170 610 and accounts for the majority part(79. 15%) of glaciers in the world. Glaciers with area above 100 km~2 are totaled as 387 241 km~2 and constitute the main part(54. 9%) of the world' s glaciers. The 45. 5% of total glacierized area is in Arctic regions(Arctic Canada North,Arctic Canada South,Greenland Periphery,Svalbard and Jan Mayen,and Russian Arctic) and 18. 8% in Antarctica and Sub Antarctic Islands. Glacierized area in High Asia accounts for 13. 8% and that in Alaska for 12. 3%. The area-weighted shrinking rate of global glacier was 11. 3% and the interpolated annual percentages of area changes(APAC) of global glacier has been 0. 35% since 1960. There is a significant regional difference in the magnitude of the APAC of glacierized area,with a difference of more than 30 times between the fastest one in lowlatitudes area(2. 28%) and the slowest one in Arctic Canada North area(0. 07%). Owing to lack of multiple global glacier inventories for comparison,quantitative studies of global-scale glacier change will continue to be the focus in the future.
【Fund】: 国家自然科学基金项目(91425303;41471058;41771077;41641003)资助
【CateGory Index】: P343.6
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