2017 NYC Topobathy Lidar Hydroenforced DEM: New York City
收藏www.fisheries.noaa.gov2018-11-09 更新2025-03-26 收录
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https://www.fisheries.noaa.gov/inport/item/64734
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资源简介：
Product: The bare earth digital elevation model (DEM) represents the earth's surface with all vegetation and anthropogenic features removed. It is derived from Green and NIR LiDAR data using TIN processing of the ground and bathymetric bottom point returns. Additionally, hydro-enforcement breaklines were created at all artificial obstructions to flow found in the ground model (i.e. culverts) to...
产品：本裸地表数字高程模型（DEM）通过移除所有植被和人为特征，精确地展现了地球表面。该模型系采用地面及水深底部点返回数据的TIN处理技术，从绿光和近红外激光雷达（LiDAR）数据中提取而成。此外，针对地面模型中发现的所有人工障碍物（例如涵洞）导致的流线中断，均创建了水力加固的断线。
提供机构：
NOAA Office for Coastal Management (NOAA/OCM)
