Propagation and Evolution of Coastal Nonlinear Internal Waves
Final rept. 1 Mar 2005-30 Sep 2008
WASHINGTON UNIV SEATTLE APPLIED PHYSICS LAB
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The major focus of the work is an experiment using a towed CTD chain as part of the SW06 experiment. A number of events were measured. Most of the time we were following some wave packet, repeatedly measuring it. We had intended to follow each packet for a long distance, but packets were frequently merging with others, and the resulting merged packet had more energy than the one we had been following, preventing us from measuring the longtime energetics of an isolated packet. One packet was followed from before it had any waves. We crossed the internal tidal bore twice with no waves, the third crossing showed one wave, and successive passes showed additional numbers of waves. These data arc shown in the figure, which shows the ship track, two dimensions of the formation of the waves out of the initial bore, and the propagation of the wave train toward shore.
- Physical and Dynamic Oceanography
- Test Facilities, Equipment and Methods