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The SOFAR channel (short for sound fixing and ranging channel), or deep sound channel (DSC), [1] is a horizontal layer of water in the ocean at which depth the speed of sound is at its minimum. The SOFAR channel acts as a waveguide for sound, and low frequency sound waves within the channel may travel thousands of miles before dissipating.
Vivari Channel in Albania links Lake Butrint with the Straits of Corfu. In physical geography and hydrology, a channel is a landform on which a relatively narrow body of water is situated, such as a river, river delta or strait. While channel typically refers to a natural formation, the cognate term canal denotes a similar artificial structure.
The depth of flow is the same at every section of the channel. Uniform flow can be steady or unsteady, depending on whether or not the depth changes with time, (although unsteady uniform flow is rare). Varied flow. The depth of flow changes along the length of the channel. Varied flow technically may be either steady or unsteady.
The English Channel, [a] [1] also known as the Channel, ... Well on the continental shelf, it has an average depth of about 120 m (390 ft) at its widest; ...
The depth of the channel reaches 108 feet (33 m), and its width is 8.8 miles (14.2 km). ʻAuʻau channel is a whale-watching center in the Hawaiian Islands. Humpback whales migrate approximately 3,500 miles (5,600 km) from Alaskan waters each autumn and spend the northern hemisphere winter months in the protected waters of the channel.
The North Channel (known in Irish and Scottish Gaelic as Sruth na Maoile, in Scots as the Sheuch [1]) is the strait between north-eastern Northern Ireland and south-western Scotland. The Firth of Clyde merges with the channel, between the southern tip of the Kintyre peninsula and Corsewall Point on the Rhins of Galloway . [ 2 ]
Hurd Deep running from bottom left to top right of an extract from a 1955 Admiralty Chart 1955 Admiralty Chart No 2649 showing Hurd Deep in the context of the English Channel. Hurd's Deep (or Hurd Deep) is an underwater valley in the English Channel, northwest of the Channel Islands. Its maximum depth is about 180 m (590 ft; 98 fathoms), making ...
Parshall flumes require a drop in elevation through the flume. To accommodate the drop in an existing channel either the flume must be raised above the channel floor (raising the upstream water level) or the downstream channel must be modified. As with weirs, flumes can also have an effect on local fauna. Some species or certain life stages of ...