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Track Forecast Cone
Tropical cyclone track forecasting involves predicting where a tropical cyclone is going to track over the next five days, every 6 to 12 hours. The history of tropical cyclone track forecasting has evolved from a single-station approach to a comprehensive approach which uses a variety of meteorological tools and methods to make predictions. The weather of a particular location can show signs of the approaching tropical cyclone, such as increasing swell, increasing cloudiness, falling barometric pressure, increasing tides, squalls and heavy rainfall. The forces that affect tropical cyclone steering are the higher-latitude westerlies, the subtropical ridge, and the beta effect caused by changes of the coriolis force within fluids such as the atmosphere. Accurate track predictions depend on determining the position and strength of high- and low-pressure areas, and predicting how those areas will migrate during the life of a tropical system. Computer forecast models are used t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
NHC Atlantic Forecast Error Trends
NHC could refer to: * Nag Hammadi Codex, or Nag Hammadi Codices (e.g. NHC II, NHC XIII) * New Hanover County, a county in North Carolina * New Haven County, a county in Connecticut. * The National Humanities Center in North Carolina * The National Hurricane Center of the United States * The Naval Historical Center of the United States * National Hamster Council, an organization in the United Kingdom * The National Health Council of the United States * The Natural Health Center in Portland, Oregon * The National Health Commission of the China * The National Housing Conference in Washington, D.C. * The National Hockey Center in St. Cloud, Minnesota * ''N''-Heterocyclic carbene, a persistent carbene, commonly used as ligand in organometallic chemistry * Nearly a Haskell Compiler, for Acorn A5000 personal computers * New Hampshire College, the former name of what is now called Southern New Hampshire University Southern New Hampshire University (SNHU) is a private university b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Weather Radar
Weather radar, also called weather surveillance radar (WSR) and Doppler weather radar, is a type of radar used to locate precipitation, calculate its motion, and estimate its type (rain, snow, hail etc.). Modern weather radars are mostly pulse-Doppler radars, capable of detecting the motion of rain droplets in addition to the intensity of the precipitation. Both types of data can be analyzed to determine the structure of storms and their potential to cause severe weather. During World War II, radar operators discovered that weather was causing echoes on their screen, masking potential enemy targets. Techniques were developed to filter them, but scientists began to study the phenomenon. Soon after the war, surplus radars were used to detect precipitation. Since then, weather radar has evolved on its own and is now used by national weather services, research departments in universities, and in television stations' weather departments. Raw images are routinely used and special ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ernesto2006modelspread
Ernesto, form of the name Ernest in several Romance languages, may refer to: * ''Ernesto'' (novel) (1953), an unfinished autobiographical novel by Umberto Saba, published posthumously in 1975 ** ''Ernesto'' (film), a 1979 Italian drama loosely based on the novel * Hurricane Ernesto (other), several hurricanes or People *Ernesto Abella, Filipino businessman, politician, and writer * Ernesto Aguero (born 1969), Cuban weightlifter *Ernesto Alonso (1917–2007), Mexican actor, director, cinematographer, and producer * Ernesto Amantegui Phumipha (born 1990), Thai footballer * Ernesto Basile (1857–1932), Italian architect *Ernesto Cesàro (1859–1906), Italian mathematician *Ernesto De Curtis (1875–1937), Italian composer * Ernesto Farías (born 1980), Argentine footballer *Ernesto Figueiredo (born 1937), also known as "Ernesto", Portuguese footballer *Ernesto Guevara de la Serna (1928–1967), also known as "El Che" or "Che Guevara" *Ernesto Geisel (1908-1996), Brazilian ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wind Shear
Wind shear (or windshear), sometimes referred to as wind gradient, is a difference in wind speed and/or direction over a relatively short distance in the atmosphere. Atmospheric wind shear is normally described as either vertical or horizontal wind shear. Vertical wind shear is a change in wind speed or direction with a change in altitude. Horizontal wind shear is a change in wind speed with a change in lateral position for a given altitude. Wind shear is a microscale meteorological phenomenon occurring over a very small distance, but it can be associated with mesoscale or synoptic scale weather features such as squall lines and cold fronts. It is commonly observed near microbursts and downbursts caused by thunderstorms, fronts, areas of locally higher low-level winds referred to as low-level jets, near mountains, radiation inversions that occur due to clear skies and calm winds, buildings, wind turbines, and sailboats. Wind shear has significant effects on the contro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Troposphere
The troposphere is the first and lowest layer of the atmosphere of the Earth, and contains 75% of the total mass of the planetary atmosphere, 99% of the total mass of water vapour and aerosols, and is where most weather phenomena occur. From the planetary surface of the Earth, the average height of the troposphere is in the tropics; in the middle latitudes; and in the high latitudes of the polar regions in winter; thus the average height of the troposphere is . The term ''troposphere'' derives from the Greek words ''tropos'' (rotating) and '' sphaira'' (sphere) indicating that rotational turbulence mixes the layers of air and so determines the structure and the phenomena of the troposphere. The rotational friction of the troposphere against the planetary surface affects the flow of the air, and so forms the planetary boundary layer (PBL) that varies in height from hundreds of meters up to . The measures of the PBL vary according to the latitude, the landform, and t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Synoptic Scale The synoptic scale in meteorology (also known as large scale or cyclonic scale) is a horizontal len |
