Texas Basemap - Lidar Elevation Data (DEM)

This resource contains Lidar-DEM collection status shapefiles from the Texas Natural Resources Information System (TNRIS) [http://tnris.org].
November 2023 updates: this year, TNRIS changed its name to Texas Geographic Information Office (TxGIO). The domain name hasn't changed yet, but the data hub is continually evolving. See [1], [2] for current downloadable data.

For purposes of Hurricane Harvey studies, the 1-m DEM for Harris County (2008) has also been uploaded here as a set of 4 zipfiles containing the DEM in tiff files. See [1] for a link to the current elevation status map and downloadable DEMs.
Project name: H-GAC 2008 1m
Datasets: 1m Point Cloud, 1M Hydro-Enforced DEM, 3D Breaklines, 1ft and 5ft Contours
Points per sq meter: 1
Total area: 3678.56 sq miles
Source: Houston-Galveston Area Council (H-GAC)
Acquired by: Merrick, QA/QC: Merrick
Catalog: houston-galveston-area-council-h-gac-2008-lidar

References:
[1] TNRIS/TxGIO StratMap elevation data [https://tnris.org/stratmap/elevation-lidar/]
[2] TNRIS/TxGIO DataHub [https://data.tnris.org/]

本资源汇聚了来自德克萨斯州自然资源信息系统（TNRIS）[http://tnris.org]的激光雷达-数字高程模型（DEM）采集状态矢量数据。至2023年11月，TNRIS已更名为德克萨斯地理信息办公室（TxGIO），尽管域名尚未变更，但其数据中心持续发展。详情请参阅[1]，[2]以获取最新可下载数据。针对哈里森县（2008年）的1米DEM数据，亦在此处上传，包含四个压缩文件包，内含tiff格式的DEM文件。有关当前高程状态地图和可下载DEM的链接，请参阅[1]。项目名称：H-GAC 2008 1m，数据集包括1米点云、1M水文加强DEM、三维断线以及1英尺和5英尺等高线。每平方米点数：1，总面积：3678.56平方英里，数据来源：休斯顿-加尔维斯顿地区委员会（H-GAC），数据采集及质量检查由Merrick承担，目录编号：houston-galveston-area-council-h-gac-2008-lidar。参考文献：[1] TNRIS/TxGIO StratMap高程数据 [https://tnris.org/stratmap/elevation-lidar/][2] TNRIS/TxGIO数据中心 [https://data.tnris.org/]