RTK-dGPS surveys of Lake Michigan beach topography near Ogden Dunes/Burns Harbor, Indiana

The US Army Corps of Engineers (USACE) is evaluating the placement of dredged material in the nearshore areas of Lake Michigan as a means to replenish sand at selected beaches. In order to elucidate the physical processes in the nearshore environment that transport and distribute sand to the beach, the USACE-Chicago District and the US Geological Survey (USGS) developed a plan for a beach replenishment study on Lake Michigan near Burns Harbor/Ogden Dunes, Indiana. In support of this effort, a backpack-mounted Trimble Ag132 RTK-dGPS was used for two surveys of beach topography (August 9, 2016, and October 11, 2016) in the study area.