Digital collections
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https://www.noaa.gov/media/digital-library-photo/pl23ship4276jpgDescription
Figure 66. Marconi echometer - a Langevin-Chilowsky echometer system presentedat the Fourth Hydrographic Conference in Monaco under the name Special Modelfor Hydrographic Studies and Shallow Water Soundings, Langevin-Chilowsky system. This sounding system first became available in 1937. (Image credit: Oceanographic Museum of Monaco | Y. Berard)
Credit
Oceanographic Museum of Monaco
Photographer
Y. Berard
Category
Voyage to Inner Space
History of Oceanography Collection
The Early Instruments - Collections of the Oceanographic Museum at Monaco
Sounding Instruments
Keywords
Oceanography
Historical instruments