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Accession Number:
AD0832816
Title:
A GEOACOUSTIC SURVEY OF THE BRAZOS RIVER. PART II. ULTRASONIC ATTENUATION STUDIES,
Corporate Author:
TEXAS UNIV AT AUSTIN DEFENSE RESEARCH LAB
Report Date:
1968-01-11
Abstract:
The use of high frequency sonar techniques for detection and study of submerged objects and geological features in rivers can be limited by the acoustic attenuation. This parameter was measured in a pilot study of the lower reaches of the Brazos River near Houston, Texas. The attenuation was due to the suspended particulate matter carried by this muddy river. At a frequency of 200 kHz and for a particulate concentration of 0.025 by weight with a mean particulate radius of 1.5 microns, the attenuation was found to be 1.5 dB100 yd. This work was supported by the Office of Naval Research. Author
Pages:
0023
Contract Number:
Nonr-3579(01)
File Size:
0.00MB
