An inlet is a (usually long and narrow) indentation of a shoreline, such as a small arm,

bay A bay is a recessed, coastal body of water that directly connects to a larger main body of water, such as an ocean, a lake, or another bay. A large bay is usually called a Gulf (geography), gulf, sea, sound (geography), sound, or bight (geogra ...

sound In physics, sound is a vibration that propagates as an acoustic wave, through a transmission medium such as a gas, liquid or solid. In human physiology and psychology, sound is the ''reception'' of such waves and their ''perception'' by the ...

fjord In physical geography, a fjord or fiord () is a long, narrow inlet with steep sides or cliffs, created by a glacier. Fjords exist on the coasts of Alaska, Antarctica, British Columbia, Chile, Denmark, Germany, Greenland, the Faroe Islands, Ice ...

lagoon A lagoon is a shallow body of water separated from a larger body of water by a narrow landform, such as reefs, barrier islands, barrier peninsulas, or isthmuses. Lagoons are commonly divided into ''coastal lagoons'' (or ''barrier lagoons'') a ...

marsh A marsh is a wetland that is dominated by herbaceous rather than woody plant species.Keddy, P.A. 2010. Wetland Ecology: Principles and Conservation (2nd edition). Cambridge University Press, Cambridge, UK. 497 p Marshes can often be found at ...

, that leads to an enclosed larger body of water such as a

lake A lake is an area filled with water, localized in a basin, surrounded by land, and distinct from any river or other outlet that serves to feed or drain the lake. Lakes lie on land and are not part of the ocean, although, like the much large ...

estuary An estuary is a partially enclosed coastal body of brackish water with one or more rivers or streams flowing into it, and with a free connection to the open sea. Estuaries form a transition zone between river environments and maritime environment ...

gulf A gulf is a large inlet from the ocean into the landmass, typically with a narrower opening than a bay, but that is not observable in all geographic areas so named. The term gulf was traditionally used for large highly-indented navigable bodie ...

or marginal sea.

Overview

marine geography Oceanography (), also known as oceanology and ocean science, is the scientific study of the oceans. It is an Earth science, which covers a wide range of topics, including ecosystem dynamics; ocean currents, waves, and geophysical fluid dynamics ...

, the term "inlet" usually refers to either the actual

channel Channel, channels, channeling, etc., may refer to: Geography * Channel (geography), in physical geography, a landform consisting of the outline (banks) of the path of a narrow body of water. Australia * Channel Country, region of outback Austral ...

between an

enclosed bay A bay is a recessed, coastal body of water that directly connects to a larger main body of water, such as an ocean, a lake, or another bay. A large bay is usually called a Gulf (geography), gulf, sea, sound (geography), sound, or bight (geogra ...

and the open ocean and is often called an "entrance", or a significant recession in the shore of a sea, lake or large river. A certain kind of inlet created by past

glaciation A glacial period (alternatively glacial or glaciation) is an interval of time (thousands of years) within an ice age that is marked by colder temperatures and glacier advances. Interglacials, on the other hand, are periods of warmer climate betw ...

is a

, typically but not always in mountainous coastlines and also in montane lakes. Multi-arm complexes of large inlets or fjords may be called

s, e.g.,

Puget Sound Puget Sound ( ) is a sound of the Pacific Northwest, an inlet of the Pacific Ocean, and part of the Salish Sea. It is located along the northwestern coast of the U.S. state of Washington. It is a complex estuarine system of interconnected ma ...

, Howe Sound, Karmsund (''sund'' is Scandinavian for "sound"). Some fjord-type inlets are called

canal Canals or artificial waterways are waterways or engineered channels built for drainage management (e.g. flood control and irrigation) or for conveyancing water transport vehicles (e.g. water taxi). They carry free, calm surface flow un ...

s, e.g., Portland Canal,

Lynn Canal Lynn Canal is an inlet (not an artificial canal) into the mainland of southeast Alaska. Lynn Canal runs about from the inlets of the Chilkat River south to Chatham Strait and Stephens Passage. At over in depth, Lynn Canal is the deepest fjord ...

, Hood Canal, and some are channels, e.g.,

Dean Channel Dean Channel is the upper end of one of the longest inlets of the British Columbia Coast, from its head at the mouth of the Kimsquit River. The Dean River, one of the main rivers of the Coast Mountains, enters Dean Channel about below the head ...

and

Douglas Channel Douglas Channel is one of the principal inlets of the British Columbia Coast. Its official length from the head of Kitimat Arm, where the aluminum smelter town of Kitimat to Wright Sound, on the Inside Passage ferry route, is . The actual length o ...

. Tidal amplitude, wave intensity, and wave direction are all factors that influence sediment flux in inlets. On low slope sandy coastlines, inlets often separate barrier islands and can form as the result of storm events. Alongshore sediment transport can cause inlets to close if the action of tidal currents flowing through an inlet do not flush accumulated sediment out of the inlet.

Notes

References

* be pub co

External links

Coastal Inlets Research ProgramHood Canal on Google Maps
{{coastal geography Coastal and oceanic landforms Bodies of water

Overview

See also

Notes

References

External links