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，DTM）是一类由规则间距的已知高程点构成的网格数字文件；配合地图、正射影像等其他数字数据使用时，可生成地表的三维可视化图像。 本次下载包含OSNI 10k比例尺图幅编号201至250的数据集。 本数据集体量较大，下载将耗时较长，请您耐心等候。本服务面向开放数据发布。下载或使用本数据集即表示您同意遵守LPS开放政府数据许可协议。 请注意针对Open Data NI用户的提示：Esri Rest API并未出现运行故障，其无法直接在网页浏览器中单独打开，但可复制后在桌面端及网页地图中使用。