Airborne Absolute Gravimetry With a Quantum Sensor, Comparison With Classical Technologies

We report an airborne gravity survey with absolute gravimeter based on atom interferometry and two relative gravimeters: a classical LaCoste\&Romberg (L\&R) novel iMAR strap-down Inertial Measurement Unit (IMU). estimated measurement errors for the quantum ranging from 0.6 to 1.3 mGal depending flight conditions filtering used. Similar are obtained strapdown but long term stability is five times worse. The traditional L\&R platform shows larger (3 - 4 mGal). Airborne measurements have been compared marine, land altimetry derived data. obtain good agreement standard deviations means differences below or equal 2 mGal. This study confirms potential of technology gravimetry which particularly interesting mapping shallow water mountainous areas linking ground satellite homogeneous referencing.