| Autor: |
Cobb, Faith, Wilson, Nia, Vecchiotti, Andrea, Turo, Diego, Vignola, Joseph, Ryan, Teresa |
| Předmět: |
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| Zdroj: |
Proceedings of Meetings on Acoustics; 12/1/2020, Vol. 42 Issue 1, p1-9, 9p |
| Abstrakt: |
This work presents an effort to understand and characterize the role moisture content plays in how sound interacts with sand on the beach. This exploratory effort is part of a larger project developing a numerical model of long-range (up to approximately 3 km) atmospheric acoustic propagation in littoral or riverine environments with a near-shore acoustic source and on-shore receivers. Previous experiments have studied moisture content of sand samples taken at various distances from the water's edge of an artificial beach. This works seeks to perform the same studies in natural coastal areas by recording moisture content in situ via a moisture probe at two depths and conducting testing with an impedance tube. Samples are collected at several distances from the shoreline at high and low tides. The results collected at the natural coastal areas are compared to those obtained from studies at the artificial lake in order to inform a related effort that seeks to capture the acoustic characteristics of the sandy beach for use in numerical modeling efforts. This study shows essentially no tidal influence on beach moisture gradient. The observed distance over which the sand transitioned from saturated to dry was generally less than a few meters. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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