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Chenier Hundal
A chenier or chénier is a sandy or shelly beach ridge that is part of a strand plain, called a “chenier plain,” consisting of cheniers separated by intervening mud-flat deposits with marsh and swamp vegetation. Cheniers are typically one to six meters high, tens of kilometers long, hundreds of meters wide, and often wooded. Chenier plains can be tens of kilometers wide. Cheniers and associated chenier plains are associated with shorelines characterized by generally low wave energy, low gradient, muddy shorelines, and abundant sediment supply. The name is derived from the Louisiana French word for these formations, “chênière", meaning oak-grove, referring to the forests of live oaks Quercus virginiana that occupy the chenier ridges within southwest Louisiana.Goodie, A.S. (2004) ''Encyclopedia of Geomorphology'' Routledge. London, United Kingdom. 1,200 p. Otvos, E.G. and W.A. Price (1979) ''Problems of chenier genesis and terminology—an overview.'' Marine Geology. v. 31, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Grand Isle, Louisiana
Grand Isle is a town in Jefferson Parish, Louisiana, Jefferson Parish in the U.S. state of Louisiana, located on a barrier island of the same name in the Gulf of Mexico. The island is at the mouth of Barataria Bay where it meets the Gulf. The town of Grand Isle is statistically part of the New Orleans−Metairie, Louisiana, Metairie−Kenner, Louisiana, Kenner New Orleans metropolitan area, metropolitan statistical area, though it is not connected to New Orleans' continuous urbanized area. The population was 1,005 as of the 2020 United States census, 2020 U.S. census, down from 1,296 from the previous 2010 United States census, 2010 U.S. census. Grand Isle's main street is the seaside start of Louisiana Highway 1 (LA 1), which stretches away to the northwest corner of the state, ending near Shreveport, Louisiana, Shreveport. LA 1's automobile causeway at the west end of the island is the only land access to or from Grand Isle. Direct access to Grand Isle's seat of parish governm ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Swamps
A swamp is a forested wetland.Keddy, P.A. 2010. Wetland Ecology: Principles and Conservation (2nd edition). Cambridge University Press, Cambridge, UK. 497 p. Swamps are considered to be transition zones because both land and water play a role in creating this environment. Swamps vary in size and are located all around the world. The water of a swamp may be fresh water, brackish water, or seawater. Freshwater swamps form along large rivers or lakes where they are critically dependent upon rainwater and seasonal flooding to maintain natural water level fluctuations.Hughes, F.M.R. (ed.). 2003. The Flooded Forest: Guidance for policy makers and river managers in Europe on the restoration of floodplain forests. FLOBAR2, Department of Geography, University of Cambridge, Cambridge, UK. 96 p. Saltwater swamps are found along tropical and subtropical coastlines. Some swamps have hammock (ecology), hammocks, or dry-land protrusions, covered by aquatic vegetation, or vegetation that tolerate ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Beachface
Swash, or forewash in geography, is a turbulent layer of water that washes up on the beach after an incoming wave has broken. The swash action can move beach materials up and down the beach, which results in the cross-shore sediment exchange. The time-scale of swash motion varies from seconds to minutes depending on the type of beach (see Figure 1 for beach types). Greater swash generally occurs on flatter beaches. The swash motion plays the primary role in the formation of morphological features and their changes in the swash zone. The swash action also plays an important role as one of the instantaneous processes in wider coastal morphodynamics. There are two approaches that describe swash motions: (1) swash resulting from the collapse of high-frequency bores (f>0.05\,\mathrm) on the beachface; and (2) swash characterised by standing, low-frequency (f20 indicate dissipative conditions where swash is characterised by standing long-wave motion. Values \epsilon_<2.5 indi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ground Truth
Ground truth is information that is known to be real or true, provided by direct observation and measurement (i.e. empirical evidence) as opposed to information provided by inference. Etymology The ''Oxford English Dictionary'' (s.v. ''ground truth'') records the use of the word ''Groundtruth'' in the sense of 'fundamental truth' from Henry Ellison's poem "The Siberian Exile's Tale", published in 1833. Usage The term "ground truth" can be used as a noun, adjective, and verb. * Noun: "ground truth" (no hyphen). Example: "The ground truth is essential for training accurate models." * Adjective: "ground-truth" (hyphenated compound adjective). Example: "We need to use ground-truth data to validate the model." * Verb: "to ground-truth" or "to groundtruth" (compound verb,). Example: "We need to ground-truth the results to ensure their accuracy." Statistics and machine learning "Ground truth" may be seen as a conceptual term relative to the knowledge of the truth concerning a spe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Godwit
Godwits are a group of four large, long-billed, long-legged and strongly bird migration, migratory waders of the bird genus ''Limosa''. Their long bills allow them to probe deeply in the sand for aquatic worms and mollusca, molluscs. In their winter range, they flock together where food is plentiful. They frequent tidal shorelines, breeding in northern climates in summer and migrating south in winter. A female bar-tailed godwit made a flight of 29,000 km (18,000 mi), flying of it without stopping. In 2020 a male bar-tailed godwit flew about non-stop in its migration from Alaska to New Zealand, previously a record for avian non-stop flight. In October 2022, a 5 month old, male bar-tailed godwit was tracked from Alaska to Tasmania, a trip that took 11 days, and recorded a non-stop flight of . The godwits can be distinguished from the curlews by their straight or slightly upturned bills, and from the dowitchers by their longer legs. The winter plumages are fairly drab, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Firth Of Thames
The Firth of Thames () is a large bay located in the north of the North Island of New Zealand. It is the firth of the rivers Waihou and Piako, the former of which was formerly named the Thames River, and the town of Thames lies on its southeastern coast. Its Maori name is ''Tikapa''. In traditional legend, the firth and the greater Hauraki Gulf are protected by a taniwha named Ureia, who takes the form of a whale. The firth lies at the southern end of the Hauraki Gulf, southeast of the city of Auckland. It occupies a rift valley or graben between the Coromandel Peninsula and Hunua Ranges, which continues into the Hauraki Plains to the south. Conservation The Firth of Thames is an important site for waders or shorebirds, and is listed as a wetland of international importance under the Ramsar Convention. The Miranda Shorebird Centre, operated by the Miranda Naturalists' Trust, is located on the Seabird Coast, on the western shore of the bay at Miranda. However, the f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pūkorokoro / Miranda
Pūkorokoro / Miranda (until 2015 known as Miranda) is a historical fort and small village in the Firth of Thames, New Zealand. The locality is mostly known for the Pūkorokoro Miranda Naturalists' Trust, a charitable trust to encourage people to visit the coastline and appreciate its wide range of flora and fauna. Attractions It is best known as the location of the Miranda Shorebird Centre, owned and operated by the Pūkorokoro Miranda Naturalists' Trust.''The Story of the Miranda Naturalists' Trust 1973–2000'' – Chambers, Stuart. MNT: Pokeno, New Zealand. (n.d). The Miranda Hot Springs are another attraction for visitors. The local Makomako Marae is a traditional meeting ground for Ngāti Pāoa, and features the Rangimarie meeting house. History The Ngāti Paoa village of Pūkorokoro was renamed after the warship HMS ''Miranda'', which brought 300 soldiers of the 70th Surrey Regiment to the area in 1863, together with 600 more men on other ships. Although the local iw ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Deposition (geology)
Deposition is the geological process in which sediments, soil and rock (geology), rocks are added to a landform or landmass. Wind, ice, water, and gravity Transportation (sediment), transport previously Weathering, weathered surface material, which, at the loss of enough kinetic energy in the fluid, is deposited, building up layers of sediment. This occurs when the forces responsible for sediment transportation are no longer sufficient to overcome the forces of gravity and friction, creating a resistance to motion; this is known as the null-point hypothesis. Deposition can also refer to the buildup of sediment from Organic matter, organically derived matter or chemical processes. For example, chalk is made up partly of the microscopic calcium carbonate skeletons of marine plankton, the deposition of which induced chemical processes (diagenesis) to deposit further calcium carbonate. Similarly, the formation of coal begins with the deposition of organic material, mainly from plants ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hurricane Delta
Hurricane Delta was a destructive tropical cyclone that became the record-tying fourth named storm of 2020 to make landfall in Louisiana, as well as the record-breaking tenth named storm to strike the United States in that year. The twenty-sixth tropical cyclone, twenty-fifth named storm, tenth hurricane, and third major hurricane of the record-breaking 2020 Atlantic hurricane season, Delta formed from a tropical wave which was first monitored by the National Hurricane Center (NHC) on October 1. Moving westward, the tropical wave began to quickly organize. A well-defined center of circulation formed with sufficiently organized deep convection on October 4, and was designated as Tropical Depression Twenty-six and soon thereafter, Tropical Storm Delta. Extremely rapid intensification ensued throughout October 5 into October 6, with Delta becoming a Category 4 hurricane within 28 hours of attaining tropical storm status. The rate of intensification was ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hurricane Laura
Hurricane Laura was a deadly and destructive tropical cyclone that is tied with the 1856 Last Island hurricane and 2021's Hurricane Ida as the strongest hurricane on record to make landfall in the U.S. state of Louisiana, as measured by maximum sustained winds. The twelfth named storm, fourth hurricane, and first major hurricane of the record-breaking 2020 Atlantic hurricane season, Laura originated from a large tropical wave that moved off the West African coast on August 16 and became a tropical depression on August 20. Laura intensified into a tropical storm a day later, becoming the earliest twelfth named storm on record in the North Atlantic basin, forming eight days earlier than 1995's Hurricane Luis. Laura first hit the Lesser Antilles and brushed Puerto Rico as a tropical storm, then moved across the island of Hispaniola, killing 31 people in Haiti and four in the Dominican Republic. The storm then moved across the length of Cuba, prompting tropical st ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hurricane Ike
Hurricane Ike () was a powerful tropical cyclone that swept through portions of the Greater Antilles and Northern America in September 2008, wreaking havoc on infrastructure and agriculture, particularly in Cuba and Texas. Ike took a similar track to the 1900 Galveston hurricane. The ninth tropical storm, fifth hurricane, and third major hurricane of the 2008 Atlantic hurricane season, Ike developed from a tropical wave west of Cape Verde on September 1 and strengthened to a peak intensity as a List of Category 4 Atlantic hurricanes, Category 4 hurricane over the open waters of the central Atlantic on September 4 as it tracked westward. Several fluctuations in strength occurred before Ike made landfall (meteorology), landfall on eastern Cuba on September 8. The hurricane weakened prior to continuing into the Gulf of Mexico, but increased its intensity by the time of its final landfall in Galveston, Texas, on September 13 before becoming an ext ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
