tidal river
Noun: A tidal river is a river, or a section of a river, where the water level and flow are significantly influenced by the ocean's tides. This means the tide's effects, such as rising and falling water levels and changes in current direction, can be felt a considerable distance inland from the river's mouth.
The term is used to describe a specific type of river system where saltwater from the sea and freshwater from upstream mix. It highlights the river's connection to and dependence on the tidal cycle. - The Thames in London is a classic example of a tidal river. - The port was built on a tidal river, so ships must time their arrivals with the high tide. - The ecosystem of a tidal river is unique, supporting both marine and freshwater species.
- Tidal reach: This phrase refers to the specific stretch or section of a river that is affected by tides. It is often used interchangeably with "tidal river" but can be more precise.
- The tidal reach of this river extends over 50 miles inland.
- Tidal estuary: A broader term for the tidal mouth of a large river, where the tide meets the stream. While all tidal rivers have an estuarine section, an "estuary" often implies a wider, more pronounced mixing zone.
- Tidal bore: A distinct phenomenon that can occur in some tidal rivers, where the incoming tide forms a wave that travels upstream against the river's current.
- Estuarine river: A river characterized by its estuary.
- Tidal stream: A more general term for any flowing water affected by tides, which can include narrower channels.
- Subject to tides: A descriptive phrase indicating a body of water experiences tidal influence.
- The lower portion of the river is subject to tides.
- a stream in which the effects of the tide extend far upstream