Corrected LIDAR-derived digital elevation model of the Duplin River salt marshes

LIDAR (light detection and ranging) data were acquired on March 9-10, 2009 by the National Center for Airborne Laser Mapping (NCALM) for the Duplin River (35 km2). A 1 m spatial resolution gridded digital elevation models (DEM) was produced from these data. The accuracy of the DEM was assessed using real time kinematic (RTK) GPS ground reference data and elevations were corrected following the method of Hladik and Alber (2012).激光雷达（Light Detection And Ranging，LIDAR）数据由国家机载激光测绘中心（National Center for Airborne Laser Mapping，NCALM）于2009年3月9日至10日针对达普林河（35平方千米）采集。基于该批数据生成了空间分辨率为1米的网格化数字高程模型（Digital Elevation Model，DEM）。随后采用实时动态（Real Time Kinematic，RTK）全球定位系统（Global Positioning System，GPS）地面参考数据对该DEM的精度进行评估，并依照Hladik与Alber（2012）提出的方法对高程数据进行了校正。