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- Apprentice Mate Steersman (Oceans or Near Coastal (Any Appropriate Tonnage)) »
- Q413 - Navigation General: Oceans
174. In some river mouths and estuaries, the incoming high-tide wave crest overtakes the preceding low-tide trough. This results in a wall of water proceeding upstream. Which term describes this occurrence?
A bore, or tidal bore, is the correct term for a steep wave that travels upstream in a river or estuary when the incoming tide crest overtakes the preceding low tide.
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