Hydrographic survey
Videos
Hydrographic survey is the science of measurement and description of features which affect maritime navigation, marine construction, dredging, offshore wind farms, offshore oil exploration and drillin
A nostalgic 1985 sketch of hydrographic surveying in Alaska.
A ship for updating nautical charts.
Neptune, a privately owned survey ship based in Chicago, Illinois.
Clintons Northern Storm in the harbour of Ystad 7 July 2021.
NOAAS Heck
Videos
NOAAS Heck was a Rude-class hydrographic survey ship in the National Oceanic and Atmospheric Administration from 1970 to 1995. Prior to her NOAA service, she was in commission from 1967 to 1970 in the
Hydrographic survey
…82) and USC&GS Wainwright (ASV 83) took over from 1942 to 1967, and USC&GS Rude (ASV 90) (later NOAAS Rude (S 590)) and USC&GS Heck (ASV 91) (later NOAAS Heck (S 591)) worked together on wire-drag operations from 1967. The rise of new electronic technologies – sidescan sonar and multibeam swath systems – in the 1950s…
NOAA Ship RudeSister ships NOAAS Rude (S 590) and NOAAS Heck (S 591)
A United States Coast and Geodetic Survey diagram of ca. 1920 of wire-drag hydrographic survey operations as carried out by Rude and her sister ship Heck. The basic principle is to drag a wire attached to two vessels; if the wire encounters an obstruction it will come taut and form a "V".