Eel River Critical Zone Observatory July 2014 Lidar Survey (Eel River)

1-m DEM from default-class points; and ground classified points and Bathymetry points combined.<br><br>The requested survey area consisted of a 1 km wide corridor, running for approximately 115 km along the Eel river.<br><br> This survey was performed with 3 airborne remote sensing mapping systems. Two of these systems are LiDAR systems: 1) Optech Gemini Airborne Laser Terrain Mapper (ALTM) (serial # 06SEN195) which is an infrared laser mapping sensor and 2) Optech Aquarius ALTM (serial # 11SEN279) which is a hybrid laser mapping system as it collects simultaneous land and shallow water-depth measurements. It operates in the green spectrum, thus enabling it to penetrate water. These two LiDAR mapping systems along with an Optech 12-bit full waveform digitizer were mounted consecutively in a twin-engine Piper PA-31-350 Navajo Chieftain (Tail Number N154WW). <br><br>The third airborne sensor was for Hyperspectral imaging. This portion of the survey was performed with a CASI-1500 - a push broom type hyperspectral imaging sensor sold by ITRES. It is mounted on a vibration isolated mount together with the Gemini LIDAR sensor.<p><br>Publications associated with this dataset can be found at <a href=\"http://calm.geo.berkeley.edu/ncalm/dtc.html\" target=\"_blank\">NCALM's Data Tracking Center</a></p>

基于默认分类点生成的1米分辨率数字高程模型（Digital Elevation Model, DEM），以及地面分类点与水深测量点的融合成果。<br><br>本次勘测区域为沿伊尔河（Eel River）延伸、宽1公里、总长约115公里的狭长走廊地带。<br><br>本次勘测搭载了三套航空遥感测绘系统，其中两套为激光雷达（Light Detection and Ranging, LiDAR）系统：其一为Optech Gemini机载激光地形测绘仪（Airborne Laser Terrain Mapper, ALTM），序列号为06SEN195，属于红外激光测绘传感器；其二为Optech Aquarius ALTM，序列号为11SEN279，该系统为混合型激光测绘系统，可同步获取陆地与浅海水深测量数据，其工作波段为绿光光谱，因此能够穿透水体。上述两套激光雷达测绘系统与一台Optech 12位全波形数字化仪被依次搭载于双引擎派珀PA-31-350“纳瓦霍酋长”型飞机（注册号：N154WW）上。<br><br>第三套机载传感器用于高光谱成像（Hyperspectral Imaging），本次勘测的该部分作业搭载了ITRES公司生产的CASI-1500型推扫式高光谱成像传感器，该传感器与Gemini激光雷达传感器共同安装于隔振支架上。<p><br>与本数据集相关的公开文献可访问<a href="http://calm.geo.berkeley.edu/ncalm/dtc.html" target="_blank">NCALM数据跟踪中心</a></p>