Efficient MeasurementWater Flow LOG_aFlow Hydrodynamic ADCP data evaluation software for rapid flow chart generation, based on real measurements. Resulting Flow charts show velocity, vorticity (turbulence) and divergence (quality). Surface Flow Sensor Ideal sensor for all applications in water flow monitoring applications. It is particularly suitable for flow measurement in open flumes river and lakes as well as coastal areas. LOG_aLevel & ADCP System Direct interface of ADCP to LOG_aLevel systems. TidePredictor Tide measurements and current measurements, calculation of harmonic contents, incorporation of wind speed and barometric pressure data.