Spatiotem poral changes of snow cover in the Mongolian plateau during 2001-2012

This paper describes the nearly 12 years of Mongolian plateau snow cover area of change make use of MODIS snow products and Analyzed the different altitude snow cover area of spatial and temporal variation characteristics of Mongolian plateau. And compare the maximum of 12 years every year the difference between snow cover area. In 12 years between 2001-2012 in the Mongolian Plateau the annual maximum snow cover area are distributed between December and January, there may be a relationship with rainfall. In time, maximum snow cover in the area in each year, the least extent is on December 2001 which is 1,373,500 km2. In space, snow-covered areas are mainly distributed in the western foot of the northern Greater Hinggan mountains and southern, northeastern, northern Yinshan Mountains, western Ordos Plateau, southern Mongolia Mongolian Altai and northern IKH NUURUUDIIN KHUNDII, Hovsgol mountains, to the Khangai Mountains branch of mountains, hills and mountains Kent Sukhbaatar province Eastern Province. Snow December 26, 2004 to cover the largest area of 1,866,500 km2. Space, mainly in the snow-covered area is mainly distributed in Inner Mongolia Erdos Plateau, Wulanchabu grasslands, Hohhot, Baotou, Western Mountains, north of the intersection of Yinshan Mountains, Mountains northwest and southwest and northern Alashan. Mongolia's Altai Mountains (MONGOL ALTAYN NURUU), IKH NUURUUDIIN KHUNDII, Hovsgol mountains and mountains branch hangay Mountains, Kent mountains branch Mountains, the central provinces, the former hangay province, the Gobi Province, South Gobi province, East Gobi province Kent Province, Eastern Province and Sukhbaatar Province.