The Bureau of Economic Geology (BEG) and Center for
Space Research (CSR) at The University of Texas at
Austin are currently using high-resolution airborne topographic mapping
technologies in the study of barrier systems. On 8 November 1997, the Bureau of Economic Geology flew 34 flightlines over
Bolivar Peninsula and Galveston Island, Texas collecting 3.5 hours of LIDAR
data. Approximately 14.4 million data
points from all flightlines were merged and gridded to create a digital
elevation model (DEM). The DEM has a 5 x 5 m horizontal resolution and
centimeter vertical resolution and a 15cm rms error. This new data set provides an extremely
detailed image of the peninsula, as illustrated to the right.
Digital Elevation Model of Bolivar Peninsula, Texas derived from LIDAR data.
data acquired over Port Bolivar, Texas September, 1999
Relief Image of Port Bolivar, Texas from 1997 LIDAR data