Video – Z-Boat 1800 Hydrographic Survey December 20, 2012 by gisuser The Oceanscience Z-Boat 1800 in action at the USGS Data Conference, September 2012. Portland, OR. Single beam depth sounder installed on the latest high specification remotely operated boat. Ideal for shallow water hydrographic surveys. Related Posts:Mapping 15 years of land cover change in AmericaAn unexpected discovery helps a Norwegian survey companyComing soon, ArcGIS mobile technology updates!