Digital Elevation Model (DEM) for the State of Hawaii Statewide Coastal Highway Program Report: Oahu, Hawaii

In this project, we use the Light Detection and Ranging (LiDAR) data to create the Digital Elevation Model (DEM). The LiDAR data can be downloaded through the Data Access Viewer of NOAA ( https://coast.noaa.gov/dataviewer/#/lidar/search/). For Oahu, the majority of the DEM is created using the data of 2013 U.S. Army Corps of Engineers (USACE) National Coastal Mapping Program (NCMP) Topobathy LiDAR – Local Mean Sea Level (LMSL). For some areas not covered by this data set, we use the LiDAR data from 2006 FEMA LiDAR: Hawaiian Islands and 2007 JALBTCX Hawaii LiDAR: North Coasts of Hawaii (Big Island), Kauai, Maui, Molokai, Oahu, which are accessed in the Data Access Viewer of NOAA. Please read “Description of Digital Elevation Model (DEM) for Oahu, Hawaii.docx” for detailed information.

本研究中，我们利用激光雷达（Light Detection and Ranging，LiDAR）数据构建数字高程模型（Digital Elevation Model，DEM）。激光雷达数据可通过美国国家海洋和大气管理局（National Oceanic and Atmospheric Administration，NOAA）的数据访问查看器（https://coast.noaa.gov/dataviewer/#/lidar/search/）下载。针对瓦胡岛，其数字高程模型的绝大部分数据源自2013年美国陆军工程兵团（U.S. Army Corps of Engineers，USACE）国家海岸测绘计划（National Coastal Mapping Program，NCMP）的地形测深激光雷达数据，基准采用局部平均海平面（Local Mean Sea Level，LMSL）。对于该数据集未覆盖的部分区域，我们采用了2006年联邦紧急事务管理局（Federal Emergency Management Agency，FEMA）夏威夷群岛激光雷达数据，以及2007年JALBTCX夏威夷激光雷达数据：涵盖夏威夷（大岛）、考艾岛、毛伊岛、莫洛凯岛及瓦胡岛北海岸的激光雷达数据，上述数据均可通过NOAA的数据访问查看器获取。详细信息请参阅《夏威夷州瓦胡岛数字高程模型（DEM）说明.docx》。