Water Turbidity Measurements in Gulf St Vincent

Large scale surveys have been made of the horizontal and vertical distributions of turbidity in the waters of Gulf St Vincent in South Australia. The beam attenuation coefficient at a wavelength of 530 nm was determined from measurements made with a transmissometer operated from a boat. Both horizon...

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Bibliographic Details
Main Authors: Phillips,D M, Scholz,M L, Abbot,R H
Format: Report
Language:English
Subjects:
AIRBORNE
ATTENUATION
AUSTRALIA
BACKSCATTERING
COEFFICIENTS
DEPTH FINDERS
GULFS
LASER BEAMS
Optics
Physical and Dynamic Oceanography
Saint Vincent Gulf
SEA WATER
SPATIAL DISTRIBUTION
STRATIFICATION
TRANSMISSOMETERS
TURBIDITY
WRELADS depth sounders
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Summary:Large scale surveys have been made of the horizontal and vertical distributions of turbidity in the waters of Gulf St Vincent in South Australia. The beam attenuation coefficient at a wavelength of 530 nm was determined from measurements made with a transmissometer operated from a boat. Both horizontal and vertical stratification of turbidity was observed and explanations for these two conditions are offered. Two methods for determining water turbidity from an aircraft were investigated. They involved measuring the amplitude and attenuation of the backscatter envelope from a laser pulse transmitted from the aircraft into the water. The relative merits of the two methods are evaluated. (Author)