Dune and Beach Dynamics in Galveston County, Texas 1994-1998: Critical Information for Coastal Management

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Changes in beach and dune topography along the Gulf of Mexico shoreline in Galveston County, Texas were documented by comparing topographic transects oriented perpendicular to the shoreline (beach profiles) at 32 locations. All profiles were measured in September 1994 and again in November 1997. Subsets of the profiles were measured in 1995, 1996, and within weeks before and after Tropical Storm (TS) Frances in September 1998. Data on ocean level, waves, wind, and surface currents were compiled for the period to examine the response of the shoreline to certain conditions. In conjunction with this study, airborne laser terrain mapping (ALTM) surveys were conducted in November 1997, August 1998, and September 1998. The ALTM surveys were sponsored by the National Aeronautics and Space Administration (NASA) and have been evaluated for their usefulness in beach and dune studies.


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