Digital Surface Model (ICAO Standard)

In the scope of the International Civil Aviation Organisation ([ICAO](https://www.skybrary.aero/index.php/International_Civil_Aviation_Organisation_(ICAO))) requiring countries and airports to provide electronic Terrain and Obstacle Data ([Etod](https://www.skybrary.aero/index.php/Electronic_Terrain_and_Obstacle_Data_(Etod))), the Air Navigation Administration has been tasked by the Government to take the necessary steps to comply with this requirement. This Digital Surface Model (DSM) is the result of a first LIDAR survey flight that has been done in October 2017 and corresponds to the standards required by ICAO. For this reason this DSM also uses the international reference systems WGS84 and EGM2008. The data itself is split up in 4 different areas, which are specified as follows: — Area 1: The entire territory of Luxembourg; — Area 2: Terminal Control Area (this area is larger than the territory of Luxembourg); — Area 3: Aerodrome movement area; — Area 4: Category II or III operations (Runway 24). The different areas come with different numerical requirements, such as data accuracy and resolution. Follow the links in the description or consult metadata for further Information.在国际民用航空组织（International Civil Aviation Organisation，ICAO，https://www.skybrary.aero/index.php/International_Civil_Aviation_Organisation_(ICAO)）要求各国及机场提供电子地形与障碍物数据（Electronic Terrain and Obstacle Data，Etod，https://www.skybrary.aero/index.php/Electronic_Terrain_and_Obstacle_Data_(Etod)）的框架下，卢森堡国家航空管理局受政府委托，采取必要措施以符合该标准要求。 本数字地表模型（Digital Surface Model，DSM）源自2017年10月完成的首次激光雷达（LIDAR）测绘飞行，完全符合ICAO规定的相关标准，因此采用国际参考坐标系WGS84与EGM2008。 本次数据集共划分为4个区域，具体说明如下： — 区域1：卢森堡全境领土； — 区域2：终端管制区（范围大于卢森堡本国领土）； — 区域3：机场活动区域； — 区域4：二类/三类运行区域（24号跑道）。 各区域对应不同的数值指标要求，涵盖数据精度与分辨率等内容。如需获取进一步信息，请查阅描述中的相关链接或元数据文档。