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MEAN AND STANDARD DEVIATION OF LOCAL SOUND SPEED ESTIMATES IN TWO-LAYER MEDIA FROM 18 TO 25 MM DEPTH.
| 1520 m/s in | 1540 m/s in | 1570 m/s in | |
|---|---|---|---|
| 2nd Layer | 2nd Layer | 2nd Layer | |
| 4 MHz Transmit | 1520.8±3.9 | 1541.6±3.7 | 1572.4±5.8 |
| Frequency | m/s | m/s | m/s |
| 8 MHz Transmit | 1520.3±1.9 | 1541.0±2.4 | 1572.3±3.0 |
| Frequency | m/s | m/s | m/s |
