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A river delta is so named because the shape of the Nile Delta approximates the triangular uppercase Greek letter delta.The triangular shape of the Nile Delta was known to audiences of classical Athenian drama; the tragedy Prometheus Bound by Aeschylus refers to it as the "triangular Nilotic land", though not as a "delta". [8]
Also narrow. A land or water passage that is confined or restricted by its narrow breadth, often a strait or a water gap. nation A stable community of people formed on the basis of a common geographic territory, language, economy, ethnicity, or psychological make-up as manifested in a common culture. national mapping agency A governmental agency which manages, produces, and publishes ...
An example of an erosional avulsion is the 2006 avulsion of the Suncook River in New Hampshire, in which heavy rains caused flow levels to rise. The river level backed up behind an old mill dam, which produced a shallowly-sloping pool that overtopped a sand and gravel quarry, connected with a downstream section of channel, and cut a new shorter ...
People have lived in the Nile Delta region for thousands of years, and it has been intensively farmed for at least the last five thousand years. The delta was a major constituent of Lower Egypt, and there are many archaeological sites in and around the delta. [6] Artifacts belonging to ancient sites have been found on the delta's coast.
The Nile, for example, is considered to be an arcuate delta because of its arc shaping. As it is waves that shape it into an arc , it also falls under the category of a wave-dominated delta. The word delta is derived from the Greek letter delta , which, like arcuate deltas, is roughly triangular.
City of Lisbon and Tagus river delta as seen from space. Another example is the delta of the Tagus river in Portugal, although due to sedimentation this delta is now only very partially inverted, with the valley now mostly filled with sediment. It is still about 15 km (9.3 mi) wide and 25 km (15.5 mi) long, compared with the 2 km-wide (1.2 mi ...
Common terms to name individual river distributaries in English-speaking countries are arm and channel.These terms may refer to a distributary that does not rejoin the channel from which it has branched (e.g., the North, Middle, and South Arms of the Fraser River, or the West Channel of the Mackenzie River), or to one that does (e.g. Annacis Channel and Annieville Channel of the Fraser River ...
It is the world's largest river delta [2] [3] and it empties into the Bay of Bengal with the combined waters of several river systems, mainly those of the Brahmaputra River and the Ganges River. It is also one of the most fertile regions in the world, thus earning the nickname the Green Delta.