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Model of Estuary. The residence time of water is a key variable determining the health of an estuary, particularly from human-induced stresses.Rapid flushing ensures that there is insufficient time for sediment accumulation or dissolved oxygen depletion in the estuary; thus a well flushed estuary is intrinsically more robust than a poorly flushed estuary. [1]
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. [1] Estuaries form a transition zone between river environments and maritime environments and are an example of an ecotone .
The Nile has traditionally been considered longer, but in 2007 and 2008 some scientists claimed that the Amazon is longer [5] [6] [7] by measuring the river plus the adjacent Pará estuary and the longest connecting tidal canal. [8] A peer-reviewed article published 2009 in the International Journal of Digital Earth concludes that the Nile is ...
The Sabine–Neches Estuary is the smallest of the seven major estuaries, with a surface area of 45,320 acres (18,340 ha) including Sabine Lake and a number of adjoining bayous, and its small size and high rate of freshwater inflow make it the least saline of the seven. [38]
In 1792, Robert Gray, an American fur trader, crossed the bar in his ship the Columbia Redeviva and became the first white settler to enter the estuary, subsequently naming the estuary Gray's Bay and the river Columbia River. During the 20th century, there existed some ambiguity with regards to who discovered the estuary, though today it is ...
A tidal prism is the volume of water in an estuary or inlet between mean high tide and mean low tide, [1] or the volume of water leaving an estuary at ebb tide. [2]The inter-tidal prism volume can be expressed by the relationship: P=H A, where H is the average tidal range and A is the average surface area of the basin. [3]
The lagoon has been designated as a National Estuarine Research Reserve and the Apalachicola River is the largest source of freshwater to the estuary. [2] Combined with the Chattahoochee River , Flint River , and Ochlockonee River they drain a watershed of over 20,000 square miles (50,000 km 2 ) at a rate of 19,599 cubic feet (550 m 3 ) per ...
The term riparian comes from the Latin word ripa, 'river bank'; technically it refers only to areas adjacent to flowing bodies of water such as rivers, streams, sloughs and estuaries. However, the terms riparian forest and riparian zone have come to include areas adjacent to non-flowing bodies of water such as ponds, lakes, playas and reservoirs.