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USGS-NPS-NASA EAARL

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USGS- NPS-NASA EAARL Data

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In a close collaboration between the USGS Coastal and Marine Geology Program's Integrated Remote Sensing and Modeling Group, NASA Wallops Flight Facility, and NPS Inventory and Monitoring Program, lidar data were acquired by the NASA EAARL system in a variety of coastal environments. The EAARL system is uniquely suited to capturing sub-aerial and submerged topography in the same over flight. The voluminous data sets acquired from the EAARL surveys are processed using a Linux-based custom-built processing system known as USGS-NASA Airborne Lidar Processing System (ALPS). ALPS enables the systematic creation of highly detailed submarine and sub-aerial topographic maps for use in ecological models and environmental stewardship. The Digitial Elevation Model (DEM) products are readily ingested into common surface modeling and GIS software packages. In order to make these data products suitable for map publication, a systematic manual editing and quality control review process was conducted to create DVD-based USGS Open File Reports (OFR). The DVD products include 1-m resolution DEM (geotiff) images, FGDC-compliant metadata, 300-dpi PDF maps, and additional data layers representing contours and hill shades. An HTML-based interface allows easy access to the high-quality PDF maps, metadata, and the GIS data layers. The published data products are also available for visualization and download in Google Earth.



USGS Open File Report 2006-1118

 

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URL: http://lidar.cr.usgs.gov/eaarl/
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Page Last Modified: December 6, 2006