Mappa topografica Grand Isle
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A proposito di questa mappa
Nome: Mappa topografica Grand Isle, altitudine, rilievo.
Luogo: Grand Isle, Jefferson Parish, Louisiana, United States (29.16627 -90.09034 29.26789 -89.94949)
Altitudine media: 0 m
Altitudine minima: -2 m
Altitudine massima: 7 m
Chenier habitats are not limited to Grand Isle, but were historically found in wetlands throughout the southeastern coasts of Louisiana called the Chenier Plain. Today, the Chenier Plain consists of uplands, wetlands, and open water that extends from Vermillion Bay, Louisiana to East Bay, Texas. Of the original 500,000 acres (200,000 ha) that had existed, an estimated 5,000 to 10,000 square acres remain. Chenier forests consist of hardwood trees, primarily oaks and hackberries, as well as a variety of other vegetation such as mulberry, honeylocust, water oak, green ash, and American elm, all which grow along slightly elevated ridges. These ridges are the result of the build-up of sediment from periodic shifts of the Mississippi River's delta and can range in size from 1–3 metres (3.3–9.8 ft) high and between 30–450 metres (98–1,476 ft) wide. Because of the slightly higher elevation, chenier forests not only allow for the growth of hardwood trees that support the variety of migratory birds that pass through Grand Isle, but also act as a barrier for salt water intrusion into a marsh during storm surges. Typically, marshes that are north of a chenier are less saline than marshes that are closer to the gulf.
Altre mappe topografiche
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Metairie
United States > Louisiana > Jefferson Parish
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Altitudine media: 1 m
Kenner
United States > Louisiana > Jefferson Parish
Kenner, Jefferson Parish, Louisiana, United States
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Bucktown
United States > Louisiana > Jefferson Parish > Metairie
Bucktown, Metairie, Jefferson Parish, Louisiana, 70005, United States
Altitudine media: 1 m
Harahan
United States > Louisiana > Jefferson Parish
Harahan, Jefferson Parish, Louisiana, United States
Altitudine media: 3 m
Jefferson
United States > Louisiana > Jefferson Parish
Jefferson, Jefferson Parish, Louisiana, 70121, United States
Altitudine media: 3 m
Avondale
United States > Louisiana > Jefferson Parish
Avondale, Jefferson Parish, Louisiana, 70094, United States
Altitudine media: 2 m
Indian Beach
United States > Louisiana > Jefferson Parish > Metairie
Indian Beach, Metairie, Jefferson Parish, Louisiana, 70005, United States
Altitudine media: 1 m
Elmwood
United States > Louisiana > Jefferson Parish
Elmwood, Jefferson Parish, Louisiana, United States
Altitudine media: 3 m
Metairie Terrace
United States > Louisiana > Jefferson Parish > Metairie
Metairie Terrace, Metairie, Jefferson Parish, Louisiana, 70001, United States
Altitudine media: 2 m
Marrero
United States > Louisiana > Jefferson Parish > Marrero
Marrero, Jefferson Parish, Louisiana, United States
Altitudine media: 2 m
Gretna
United States > Louisiana > Jefferson Parish
Gretna, Jefferson Parish, Louisiana, 70053, United States
Altitudine media: 2 m
Terrytown
United States > Louisiana > Jefferson Parish > Terrytown
Terrytown, Jefferson Parish, Louisiana, 70056, United States
Altitudine media: 1 m
Waggaman
United States > Louisiana > Jefferson Parish > Waggaman
Waggaman, Jefferson Parish, Louisiana, United States
Altitudine media: 3 m
Rex Trailer Court
United States > Louisiana > Jefferson Parish > Kenner
Rex Trailer Court, Kenner, Jefferson Parish, Louisiana, 70062, United States
Altitudine media: 2 m
Gretna
United States > Louisiana > Jefferson Parish > Gretna > Gretna
Gretna, Jefferson Parish, Louisiana, 70053, United States
Altitudine media: 2 m
River Ridge
United States > Louisiana > Jefferson Parish
River Ridge, Jefferson Parish, Louisiana, 70123, United States
Altitudine media: 3 m
Harvey
United States > Louisiana > Jefferson Parish
Harvey, Jefferson Parish, Louisiana, United States
Altitudine media: 2 m