Crosshole ground penetrating radar data collected in clayey till with sand occurrences

The data was collected in November, 2015 and consists of crosshole ground penetrating radar (GPR) data collected between two boreholes 3.367 m apart and down to approximately 8 m depth. The equipment used to collect the data was Sensors & Software pulseEKKO PRO equiped with 1000 V transmitter. The time window used is 340 ns, sampled every 0.4 ns, resulting in 850 samples per trace. Every trace is stacked 64 times to increase signal-to-noise ratio. Antennae frequency is 100 MHz.