2010 LiDAR Data, National Coastal Mapping Program (Fire Island National Seashore).
JALBTCX (Joint Airborne Lidar Bathymetry Technical Center of eXpertise). 2010. 2010 LiDAR Data, National Coastal Mapping Program (Fire Island National Seashore).. JALBTCX (Joint Airborne Lidar Bathymetry Technical Center of eXpertise)
These files contain topographic lidar data collected by the Compact Hydrographic Airborne Rapid Total Survey (CHARTS) system along the coast of New York. CHARTS integrates topographic and bathymetric lidar sensors, a digital camera and a hyperspectral imager on a single remote sensing platform for use in coastal mapping and charting activities. Data coverage generally extends along the coastline from the waterline inland 500 meters (topography) and offshore 1,000 meters or to laser extinction (bathymetry). Native lidar data is not generally in a format accessible to most Geographic Information Systems (GIS). Specialized in-house and commercial software packages are used to processes the native lidar data into 3-dimensional positions that can be imported into GIS software for visualization and further analysis. Horizontal positions, provided in decimal degrees of latitude and longitude, are referenced to the North American Datum of 1983 (NAD83). Vertical positions are referenced to the NAD83 ellipsoid and provided in meters. The National Geodetic Survey's (NGS) GEOID03 model is used to transform the vertical positions from ellipsoid to orthometric heights referenced to the North American Vertical Datum of 1988 (NAVD88). The 3-D position data are sub-divided into a series of LAS files, with each derived from a single flightline and covering approximately 5 kilometers of shoreline. The file index is provided by the shape file, "ny_boxes.shp", and the numbers used to identify files are in the "Box" field of the shape file. The LAS file naming convention is based on the year, project, area name, and flightline identification number. An example file name is " 2010_NCMP_NY_02DS10043_004_100819_1347_A_00762_t.las", where 2010 is the year of data collection, NCMP is the project under which data were collected, NY is the area of data collection, and 1347 is the flightline identifier. The format of the file is LAS version 1.1.
- Type
- Geospatial Dataset
- Authors
- JALBTCX (Joint Airborne Lidar Bathymetry Technical Center of eXpertise)
- Date of Issue
- 2010
- Publisher
- JALBTCX (Joint Airborne Lidar Bathymetry Technical Center of eXpertise)
- Units
- FIIS
- Keywords
- 006, 014, Charts, Coastal Elevation, Coastal Processes, DOD/USARMY/USACE/SAM/MOBILE, Earth Science, Elevation, IWG-OCM, JALBTCX, land surface, land surface, LAS, Lidar, Light Detection And Ranging, Mobile District, National Coastal Mapping Program (NCMP), New York, Oceans, Shoals, Suffolk County, terrain elevation, Topography, U.S. Army Corps of Engineers (USACE), United States, VERTICAL LOCATION