OSNI Open Data - 10M DTM - Sheets 201-250

A Digital Terrain Model (DTM) is a digital file consisting of a grid of regularly spaced points of known height which, when used with other digital data such as maps or orthophotographs, can provide a 3D image of the land surface. This download contains OSNI 10k sheet numbers 201-250. <div><br /></div><div><span style='font-family: &quot;Avenir Next W01&quot;, &quot;Avenir Next W00&quot;, &quot;Avenir Next&quot;, Avenir, &quot;Helvetica Neue&quot;, sans-serif; font-size: 16px;'>This is a large dataset and will take sometime to download. Please be patient. This service is published for OpenData. By download or use of this dataset you agree to abide by the LPS Open Government Data Licence.</span><div style='font-family: &quot;Avenir Next W01&quot;, &quot;Avenir Next W00&quot;, &quot;Avenir Next&quot;, Avenir, &quot;Helvetica Neue&quot;, sans-serif; font-size: 16px;'><br /></div><div style='font-family: &quot;Avenir Next W01&quot;, &quot;Avenir Next W00&quot;, &quot;Avenir Next&quot;, Avenir, &quot;Helvetica Neue&quot;, sans-serif; font-size: 16px;'>Please Note for Open Data NI Users: Esri Rest API is not Broken, it will not open on its own in a Web Browser but can be copied and used in Desktop and Webmaps</div></div>

数字地形模型（Digital Terrain Model，简称 DTM）是一种由已知高度的规则间距点构成的网格状数字文件。当与地图或其他数字数据，如正射影像相结合时，可生成地表的 3D 图像。本下载包含 OSNI 10k 图纸编号 201-250。此数据集规模庞大，下载可能需要一段时间，敬请耐心等待。该服务发布于 OpenData，通过下载或使用此数据集，您同意遵守 LPS 开放政府数据许可。请注意，对于 Open Data NI 用户：Esri Rest API 功能正常，但不会在浏览器中自动打开，可复制后在桌面和 Web 地图中使用。