2004 Lidar Survey of Assateague Island National Seashore
USGS Center for Coastal and Watershed Studies. 2005. 2004 Lidar Survey of Assateague Island National Seashore. USGS Center for Coastal and Watershed Studies. Assateague Island National Seashore (ASIS)
Bare-earth and first-return National Seashore/Coastal Park Digital Elevation Maps Derived from LIDAR Grid elevataion data derived from a lidar survey of Assateague Island National Seashore (ASIS). Lidar is a form of toporgaphic mapping which uses a pulsed laser ranging system mounted onboard an aircraft to take high density ground elevation measurements. This data is collected by NASA and sent to USGS for conversion to geotiff images (see suplemental information). The images are then sent to the NPS where they are converted into a single grid for use in an ArcGIS software environment. This is bare earth surface of the lidar survey flown on this date, meaning that all vegetation and non-hard surface returns have been removed. There should also be a first return surface calculated for the same date. See supplemental information for details on the EAARL (Experamental Advanced Airborne Reasearch Lidar) system used.
- Type
- Geospatial Dataset
- Authors
- USGS Center for Coastal and Watershed Studies
- Date of Issue
- 2005
- Publisher
- USGS Center for Coastal and Watershed Studies
- Units
- ASIS , NCBN
- Keywords
- Assateague Island National Seashore, Coastal Dynamics, Elevation, Maryland, Overwash, Sand Dunes, Topography, Virginia
- Subjects
- Ecological Framework: Geology and Soils | Geomorphology | Coastal/Oceanographic Features and Processes