Glaciers 2003

The themeism, polygonal typology, represents the areas covered by glaciers falling within the provincial territory. The information collected refers to aerophotogrammetrics carried out in September 2003 and includes glacial bodies with an area of more than one hectare (1 ha)本专题多边形分类体系（polygonal typology）旨在表征省内辖区内的冰川覆盖区域。本次采集的数据集源自2003年9月开展的航空摄影测量工作，涵盖的冰川实体面积均大于1公顷（1 ha）。