For example, a map of glaciers on Mount Hood ( see footnote 4 ) and a bathymetric map of the bottom of Crater Lake ( see footnote 5 ), both created by the United States Geological Survey, add valuable information to the articles on Mount Hood and Crater Lake, respectively.
12.
The survey was needed to produce a bathymetric map of the sea floor of the search area, which was previously poorly mapped and largely uncharted and mountainous, before a phase of the search using a towed side-scan sonar vehicle and autonomous underwater vehicles which need to operate close to the seafloor.
13.
Tamaz Kiknadze ( 1979 ) reported submarine springs near the eastern part of Gagra at depth of 25 30 m and Buachidze and Meliva ( 1967 ) revealed submarine discharge at depths up to " 400 m by hydrochemical profiling . from a digital bathymetric map that combines depth soundings and high-resolution marine gravity data.
14.
The Survey's requirement to update sailing directions led to the development of early Oceanographic Museum ( Mus�e Oc�anographique ) in Monaco due to her being " the most innovative oceanographic vessel of the Nineteenth Century " with development of deep ocean exploration through introduction of steel cable for sounding, dredging and deep anchoring and data collection for the " first truly modern bathymetric map of a deep sea area ."
15.
"' USC & GS " George S . Blake " "', in service 1874-1905, is, with the U . S . Fish Commission steamer, one of only two US oceanographic vessels with her name inscribed in the fa�ade of the Oceanographic Museum ( Mus�e Oc�anographique ), Monaco due to her being " the most innovative oceanographic vessel of the Nineteenth Century " with development of deep ocean exploration through introduction of steel cable for sounding, dredging and deep anchoring and data collection for the " first truly modern bathymetric map of a deep sea area ."
