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Effects Of Hurricane Katrina In New Orleans
As the center of Hurricane Katrina passed southeast of New Orleans on August 29, 2005, winds downtown were in the Category 1 range with frequent intense gusts. The storm surge caused approximately 23 breaches in the drainage canal and navigational canal levees and flood walls. As mandated in the Flood Control Act of 1965, responsibility for the design and construction of the city's levees belongs to the United States Army Corps of Engineers and responsibility for their maintenance belongs to the Orleans Levee Board. The failures of levees and flood walls during Katrina are considered by experts to be the worst engineering disaster in the history of the United States. By August 31, 2005, 80% of New Orleans was flooded, with some parts under of water. The famous French Quarter and Garden District escaped flooding because those areas are above sea level. The major breaches included the 17th Street Canal levee, the Industrial Canal levee, and the London Avenue Canal flood ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Greater New Orleans
The New Orleans metropolitan area, designated the New Orleans–Metairie metropolitan statistical area by the U.S. Office of Management and Budget, or simply Greater New Orleans (french: Grande Nouvelle-Orléans, es, Gran Nueva Orleans), is a metropolitan statistical area designated by the United States Census Bureau encompassing eight Louisiana parishes—the equivalent of counties in other U.S. states—centered on the city of New Orleans. The population of Greater New Orleans was 1,271,845 in 2020, up from 1,189,166 at the 2010 United States census. According to 2017 census estimates, the broader New Orleans–Metairie–Hammond combined statistical area (CSA) had a population of 1,510,562. The New Orleans metropolitan area was hit by Hurricane Katrina—once a category 5 hurricane, but a category 3 storm at landfall—on August 29, 2005. Within the city of New Orleans proper, multiple breaches and structural failures occurred in the system of levees and flood walls designed ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Economy Of The United States
The United States is a highly developed mixed-market economy and has the world's largest nominal GDP and net wealth. It has the second-largest by purchasing power parity (PPP) behind China. It has the world's seventh-highest per capita GDP (nominal) and the eighth-highest per capita GDP (PPP) as of 2022. US share of Global economy is 15.78% in PPP terms in 2022. The United States has the most technologically powerful and innovative economy in the world. Its firms are at or near the forefront in technological advances, especially in artificial intelligence, computers, pharmaceuticals, and medical, aerospace, and military equipment. The U.S. dollar is the currency of record most used in international transactions and is the world's foremost reserve currency, backed by the nation’s massive economy, stable government, extensive natural resources, highly advanced military, its role as the reference standard for the petrodollar system, and its linked eurodollar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
National Weather Service
The National Weather Service (NWS) is an agency of the United States federal government that is tasked with providing weather forecasts, warnings of hazardous weather, and other weather-related products to organizations and the public for the purposes of protection, safety, and general information. It is a part of the National Oceanic and Atmospheric Administration (NOAA) branch of the Department of Commerce, and is headquartered in Silver Spring, Maryland, within the Washington metropolitan area. The agency was known as the United States Weather Bureau from 1890 until it adopted its current name in 1970. The NWS performs its primary task through a collection of national and regional centers, and 122 local Weather Forecast Offices (WFOs). As the NWS is an agency of the U.S. federal government, most of its products are in the public domain and available free of charge. History Calls for the creation of a government weather bureau began as early as 1844, when the electrica ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gulf Intracoastal Waterway
The Gulf Intracoastal Waterway is the portion of the Intracoastal Waterway located along the Gulf Coast of the United States. It is a navigable inland waterway running approximately from Carrabelle, Florida, to Brownsville, Texas. The waterway provides a channel with a controlling depth of , designed primarily for barge transportation. Although the U.S. government proposals for such a waterway were made in the early 19th century, the Gulf Intracoastal Waterway was not completed until 1949. EHL & WHL mileages Locations along the Gulf Intracoastal Waterway are defined in terms of statute miles (as opposed to nautical miles, in which most marine routes are measured) east and west of Harvey Lock, a navigation lock in the New Orleans area located at . The Hathaway Bridge in Panama City, Florida, for example, is at mile 284.6 EHL (East of Harvey Lock). The Queen Isabella Causeway Bridge at South Padre Island is at mile 665.1 WHL (West of Harvey Lock). Connecting waterways ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hurricane Georges
Hurricane Georges () was a powerful and long-lived Cape Verde Category 4 hurricane which caused severe destruction as it traversed the Caribbean and Gulf of Mexico in September 1998, making eight landfalls along its path. Georges was the seventh tropical storm, fourth hurricane, and second major hurricane of the 1998 Atlantic hurricane season. It became the most destructive storm of the season, the costliest Atlantic hurricane since Hurricane Andrew in 1992 and remained the costliest until Hurricane Charley in 2004, and the deadliest since Hurricane Gordon in 1994. Georges killed 604 people, mainly on the island of Hispaniola, caused extensive damage resulting at just under $10 billion (1998 US dollars) in damages and leaving nearly neatly 500,000 homeless in St. Kitts and Nevis, Puerto Rico, Hispaniola and Cuba. The hurricane made landfall in at least six countries ( Antigua and Barbuda, St. Kitts and Nevis, Haiti, the Dominican Republic, Cuba, and the United ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jefferson Parish, Louisiana
Jefferson Parish (french: Paroisse de Jefferson; es, Parroquia de Jefferson) is a parish in the U.S. state of Louisiana. As of the 2020 census, the population was 440,781. Its parish seat is Gretna, its largest community is Metairie, and its largest incorporated city is Kenner. Jefferson Parish is included in the Greater New Orleans area. History 1825 to 1940 Jefferson Parish was named in honor of U.S. President Thomas Jefferson of Virginia when the parish was established by the Louisiana Legislature on February 11, 1825, a year before Jefferson died. A bronze statue of Jefferson stands at the entrance of the General Government Complex on Derbigny Street in Gretna. The parish seat was in the city of Lafayette, until that area was annexed by New Orleans in 1852. In that year the parish government moved to Carrollton, where it remained for twenty-two years. Originally, this parish was larger than it is today, running from Felicity Street in New Orleans to the St. Cha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Orleans Parish, Louisiana
New Orleans ( , ,New Orleans . ; french: La Nouvelle-Orléans , es, Nueva Orleans) is a consolidated city-parish located along the in the southeastern region of the U.S. state of . With a population of 383,997 accord ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
LIDAR
Lidar (, also LIDAR, or LiDAR; sometimes LADAR) is a method for determining ranges (variable distance) by targeting an object or a surface with a laser and measuring the time for the reflected light to return to the receiver. It can also be used to make digital 3-D representations of areas on the Earth's surface and ocean bottom of the intertidal and near coastal zone by varying the wavelength of light. It has terrestrial, airborne, and mobile applications. ''Lidar'' is an acronym of "light detection and ranging" or "laser imaging, detection, and ranging". It is sometimes called 3-D laser scanning, a special combination of 3-D scanning and laser scanning. Lidar is commonly used to make high-resolution maps, with applications in surveying, geodesy, geomatics, archaeology, geography, geology, geomorphology, seismology, forestry, atmospheric physics, laser guidance, airborne laser swath mapping (ALSM), and laser altimetry. It is also used in control and navigation for som ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Subsidence
Subsidence is a general term for downward vertical movement of the Earth's surface, which can be caused by both natural processes and human activities. Subsidence involves little or no horizontal movement, which distinguishes it from slope movement. Processes that lead to subsidence include dissolution of underlying carbonate rock by groundwater; gradual compaction of sediments; withdrawal of fluid lava from beneath a solidified crust of rock; mining; pumping of subsurface fluids, such as groundwater or petroleum; or warping of the Earth's crust by tectonic forces. Subsidence resulting from tectonic deformation of the crust is known as tectonic subsidence and can create accommodation for sediments to accumulate and eventually lithify into sedimentary rock. Ground subsidence is of global concern to geologists, geotechnical engineers, surveyors, engineers, urban planners, landowners, and the public in general.National Research Council, 1991. ''Mitigating losses from lan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
New Orleans Metropolitan Area
The New Orleans metropolitan area, designated the New Orleans–Metairie metropolitan statistical area by the U.S. Office of Management and Budget, or simply Greater New Orleans (french: Grande Nouvelle-Orléans, es, Gran Nueva Orleans), is a metropolitan statistical area designated by the United States Census Bureau encompassing eight Louisiana parishes—the equivalent of counties in other U.S. states—centered on the city of New Orleans. The population of Greater New Orleans was 1,271,845 in 2020, up from 1,189,166 at the 2010 United States census. According to 2017 census estimates, the broader New Orleans–Metairie–Hammond combined statistical area (CSA) had a population of 1,510,562. The New Orleans metropolitan area was hit by Hurricane Katrina—once a category 5 hurricane, but a category 3 storm at landfall—on August 29, 2005. Within the city of New Orleans proper, multiple breaches and structural failures occurred in the system of levees and flood walls ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hurricane Betsy
Hurricane Betsy was an intense and destructive tropical cyclone that brought widespread damage to areas of Florida and the central United States Gulf Coast in September 1965. The storm's erratic nature, coupled with its intensity and minimized preparation time contributed to making Betsy the first tropical cyclone in the Atlantic basin to accrue at least $1 billion in damage. While the storm primarily affected areas of southern Florida and Louisiana, lesser effects were felt in the Bahamas and as far inland in the United States as the Ohio River Valley. Betsy began as a tropical depression north of French Guiana on August 27, and strengthened as it moved in a general northwesterly direction. After executing a slight anticyclonic loop north of the Bahamas, Betsy proceeded to move through areas of south Florida on September 8, causing extensive crop damage. After emerging into the Gulf of Mexico, the cyclone strengthened and reached its peak intensit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lake Pontchartrain
Lake Pontchartrain ( ) is an estuary located in southeastern Louisiana in the United States. It covers an area of with an average depth of . Some shipping channels are kept deeper through dredging. It is roughly oval in shape, about from west to east and from south to north. In descending order of area, the lake is located in parts of six Louisiana parishes: St. Tammany, Orleans, Jefferson, St. John the Baptist, St. Charles, and Tangipahoa. The water boundaries were defined in 1979 (see list of parishes in Louisiana). The lake is crossed by the Lake Pontchartrain Causeway, the longest continuous bridge over water in the world. A power line also crosses the lake. Its towers stand on caissons in Lake Pontchartrain, and its length can be used to visually demonstrate the curvature of the earth. Toponymy Lake Pontchartrain is named for , . He was the French Minister of the Marine, Chancellor, and Controller-General of Finances during the reign of France's "Sun King" ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
