Abstract
The COAstal STorm Rapid Response (COASTRR) system has been implemented to measure hydro-dynamic, morphodynamic, and sedimentary processes occurring along coastlines during storm impact and subsequent recovery. Relatively few measurements are available to evaluate the physical processes shaping coastal systems during extreme storm events, nor to assess post-storm system recovery (e.g. Sherwood et al., 2014). Prior to landfall of Hurricane Harvey, instruments to collect high-resolution in-situ hydrodynamic measure-ments across two different barrier island transects on the upper Texas Gulf Coast were deployed before and recovered after the storm. Hurricane Harvey struck the central Texas Gulf Coast as a Category 4 storm on August 25, 2017 causing severe infrastructure damage and erosion near its landfall location but generating mostly accretional features at the two field sites on Hog Island and Follets Island, respectively, which were located more than 160 miles northeast of Harvey’s landfall location.
Highlights
INTRODUCTION The COAstal STorm RapidResponse (COASTRR) system has been implemented to measure hydrodynamic, morphodynamic, and sedimentary processes occurring along coastlines during storm impact and subsequent recovery
The idea of the COAstal STorm Rapid Response (COASTRR) system is to provide the capability for detailed measurements of nearshore and across-island storm surge and wave hydrodynamic forcing conditions during storm impact, as well as pre- and post-storm topographic and bathymetric elevation data
Digital elevation models (DEMs) for the selected project sites were created from multiple unmanned aerial system (UAS) flights and real-time kinematic GPS surveys on the ground before and immediately after storm impact
Summary
INTRODUCTION The COAstal STorm RapidResponse (COASTRR) system has been implemented to measure hydrodynamic, morphodynamic, and sedimentary processes occurring along coastlines during storm impact and subsequent recovery. METHODS The idea of the COASTRR system is to provide the capability for detailed measurements of nearshore and across-island storm surge and wave hydrodynamic forcing conditions during storm impact, as well as pre- and post-storm topographic and bathymetric elevation data. Site-specific Rapid Response Units (RRUs), each containing a pressure transducer (PT) and a tilt current meter (TCM), are designed to record water level fluctuations, wave heights, current velocities, and wave orbital velocities during storm impact (Anarde and Figlus, 2017).
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