A master mariner and a committed proponent of the maritime users’ perspective, Rear Admiral Nick Lambert concluded a long naval operational career as the UK National Hydrographer in December 2012.  A co-founder and director of NLA International, he advises on a wide range of maritime issues including the significant potential of the blue economy concept, the importance of spatial data infrastructures and hydrography for maritime economies, the evolution of eNavigation and GNSS vulnerability, near or real time situational awareness (especially that der