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Evaluating the Coda Phase Delay Method for Determining Temperature Ratios in Windy Environments

Journal of the Acoustical Society of America

Albert, Sarah A.; Bowman, Daniel B.; Rodgers, Arthur; Seastrand, Douglas

We evaluate the acoustic coda phase delay method for estimating changes in atmospheric phenomena in realistic environments. Previous studies verifying the method took place in an environment with negligible wind. The equation for effective sound speed, which the method is based upon, shows that the influence of wind is equal to the square of temperature. Under normal conditions, wind is significant and therefore cannot be ignored. Results from this study con rm the previous statement. The acoustic coda phase delay method breaks down in non-ideal environments, namely those where wind speed and direction varies across small distances. We suggest that future studies make use of gradiometry to better understand the effect of wind on the acoustic coda and subsequent phase delays.

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TYPE Journal Article YEAR 2017
OSTI
Results 51–62 of 62
Results 51–62 of 62