OCEANOGRAPHIC AND UNDERWATER ACOUSTICS RESEARCH.

Geophysical investigations were carried out aboard R/V CHAIN in the Indian Ocean, the Mediterranean Sea, and the North Atlantic Ocean. Observations underway were continuous seismic profiling, gravity, magnetic, and echo sounding measurements. At stations rocks were dredged, cores were taken (about 1...

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Bibliographic Details
Other Authors: WOODS HOLE OCEANOGRAPHIC INSTITUTION MASS
Format: Text
Language:English
Published: 1965
Subjects:
(*UNDERWATER SOUND
SCIENTIFIC RESEARCH)
(*OCEANOGRAPHY
MARINE GEOPHYSICS
HYDROGRAPHIC SURVEYING
UNDERWATER SOUND EQUIPMENT
SOUND TRANSMISSION
OCEAN BOTTOM TOPOGRAPHY
ECHO RANGING
HYDROPHONES
OCEAN BOTTOM SAMPLING
ROCK
BATHYTHERMOGRAPH DATA
HEAT TRANSFER
OCEAN CURRENTS
UNDERWATER PHOTOGRAPHY
INDIAN OCEAN
ATLANTIC OCEAN
RED SEA
MEDITERRANEAN SEA
SEISMOLOGY
Indian
North Atlantic
Online Access:http://www.dtic.mil/docs/citations/AD0618485
http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=AD0618485
Description
Summary:Geophysical investigations were carried out aboard R/V CHAIN in the Indian Ocean, the Mediterranean Sea, and the North Atlantic Ocean. Observations underway were continuous seismic profiling, gravity, magnetic, and echo sounding measurements. At stations rocks were dredged, cores were taken (about 10 meters long, photographic montages of the sea floor were made, and the sound velocity of the water was measured as a function of depth. Progress is being made in filtering and correlation techniques for seismic profiling, while seismic receiving arrays were improved to make them quieter. The analysis of internal wave data is continuing, but further observations at sea will be required in order to fully understand the mechanism of propagation. A new thermistor string intended to replace and improve upon the original thermistor chain was the principal new instrumental development.

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