Schematic of proposed barrier island subsidence sampling and monitorin

Schematic of proposed barrier island subsidence sampling and monitoring set up.

Detailed Description

Schematic of proposed barrier island subsidence sampling and monitoring set up. Primary procedure: 1) install 1st order benchmarks to monitor surface elevation (subsidence) across barrier island; 2) collect topography and bathymetry data (including inlets at each end) to compare with archived data and elevations; 3) collect auger cores (~10 to 20 meter deep) for stratigraphy; 4) install extensometers to monitor compaction following core collection; and 5) collect short cores as proof-of-concept identifying subsidence versus erosion by comparing short-and long-lived isotopes (7Be/234Th, 210Pb/137Cs, and Rad7). 

Details

Image Dimensions: 1000 x 294

Location Taken: US