Inspire HE Altitude – Grid Coverage ATKIS – DGM1

Digital terrain models (DGM) are managed in ATKIS® according to a national standard. DGM are digital, numerical, models of terrain heights and shapes of the earth’s surface, which are reduced to a regular grid. They do not contain information about buildings (e.g. bridges) and vegetation. Due to different water levels at the reception times, height jumps can occur in waters. DGM are available with the grid widths 1 m (DGM1), 5 m (DGM5), 10 m (DGM10), 25 m (DGM25) and 50 m (DGM50).数字地形模型（Digital Terrain Models，DGM）依据国家标准在ATKIS®系统中进行管理。DGM是经规则网格化处理的数字化数值模型，用于表征地表高程与地表形态，不包含建筑物（如桥梁）及植被相关信息。由于数据接收时刻的水位存在差异，水域区域可能出现高程跳变。DGM提供多种格网宽度版本，分别为1米（DGM1）、5米（DGM5）、10米（DGM10）、25米（DGM25）及50米（DGM50）。