What is the shape of the delta of the Mississippi river?
Time, weather, and human intervention have all shaped the Mississippi Delta in Louisiana, a giant bird's foot shape protruding into the Gulf of Mexico.
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Deltas have different shapes depending on how much sediment is deposited by the river compared to how much sediment is eroded and redeposited by waves and tides. A river dominated delta, such as the map below of the Mississippi delta, Louisiana, USA, is sometimes called a bird's foot delta because of its shape.
The Delta forms the most important bird and waterfowl migration corridor on the continent and supports North America's largest wetland area and bottomland hardwood forest. The Delta's cultural traditions are as rich and diverse as its natural resources.
The Ganges Brahmaputra Delta, also named Ganges Delta, Sunderban Delta or Bengal Delta is situated in Asia where the Ganges and Brahmaputra rivers discharge into the Bay of Bengal. It is, with a surface area of some 100.000 km2, the world's largest Delta.
It measures seventy miles across at its widest point and encloses an area about two hundred miles long that writer William Alexander Percy called “a badly drawn half oval.” The Delta is unusually flat, with elevation going from 205 feet above sea level below Memphis to 80 feet above at Vicksburg and averaging an ...
For 7,000 years, the Mississippi River has snaked across southern Louisiana, depositing sediment from 31 states and 2 Canadian provinces across its delta. As sediment accumulated under water, plant communities began to develop, trapping more sediment and building land.
Land loss crisisEvery 100 minutes, a football field of land disappears into open water. Leveeing of the Mississippi River in the early 20th century severed the tie between the river and its surrounding wetlands, cutting off the Mississippi River Delta from its life-giving river and the sediment it carries.