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.
USC&GS Wainwright. was a survey ship in commission in the United States Coast and Geodetic Survey from 1942 to 1967.
Hydrographic survey
…to work together on such surveys. USC&GS Marindin and USC&GS Ogden conducted wire-drag surveys together from 1919 to 1942, USC&GS Hilgard (ASV 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…
USC&GS Wainwright (ASV 83), ca. 1965. She is painted in the colors of the Environmental Science Services Administration (ESSA), the United States Coast and Geodetic Survey's parent organization from 1965 to 1970.
A United States Coast and Geodetic Survey diagram of ca. 1920 of wire drag hydrographic survey operations as carried out by Wainwright and her sister ship Hilgard. 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."
USC&GS Wainwright conducting wire-drag survey operations.