Hydro International #2- 2022

In this issue of Hydro International, we highlight recent developments in positioning and navigation systems, and investigate how new solutions are set to bridge the gap between RTK and PPP. We also focus on the importance of well-functioning augmentation networks for satellite positioning to facilitate mapping and surveying tasks. Further articles include, amongst others, a method for fusing data acquired using USV and UAV measurement platforms to develop a digital bathymetric model, and a story on Sentinel-2 satellite-derived bathymetry in optically complex waters.