Sedimentary Architecture of UK Wandering Gravel-Bed Rivers, River Coquet, Northumberland, UK

GPR and topographic survey using (dGPS) were carried out on the River Coquet between May 17 and June 1, 2017. We used a NERC Geophysical Equipment Facility (GEF) Sensor and Software Pulse Ekko Pro GPR with a 1000V transmitter system, and 50, 100 and 200 MHz antennas (Figure 2). A common offset (CO) survey using three different frequencies of antennas (50, 100 and 200MHz) was performed along single line in the first survey grid (Thropton grid) in order to establish depth of penetration and data resolution, to determine which antenna set would be most appropriate to address the scientific goals of the project. Subsequent GPR grids at Hepple and Holystone were conducted at frequencies of 50, 100 MHz and 100 MHz, respectively.