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Block (meteorology)
Blocks in meteorology are large-scale patterns in the atmospheric pressure field that are nearly stationary, effectively "blocking" or redirecting migratory cyclones. They are also known as blocking highs or blocking anticyclones.Glossary of Meteorology, Second Edition; American Meteorological Society, 2000; . These blocks can remain in place for several days or even weeks, causing the areas affected by them to have the same kind of weather for an extended period of time (e.g. precipitation for some areas, clear skies for others). In the Northern Hemisphere, extended blocking occurs most frequently in the spring over the eastern Pacific and Atlantic Oceans. While these events are linked to the occurrence of extreme weather events such as heat waves, particularly the onset and decay of these events is still not well captured in numerical weather forecasts and remains an open area of research. Impact of the polar vortex Polar cyclones are climatological features which hover near ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
NAM 500 MB
Nam, Nam, or The Nam are shortened terms for: * Vietnam, which is also spelled ''Viet Nam'' * The Vietnam War Nam, The Nam or NAM may also refer to: Arts and media * Nam, a fictional character in anime series ''Dragon Ball'' * ''NAM'' (video game), a 1998 PC game * '' The 'Nam'', a Vietnam War comic series by Marvel Organizations and movements * NAM Aidsmap, a UK organization and website formerly named the National AIDS Manual and now often simply aidsmap * National Academy of Medicine, of the US National Academies of Sciences * National-Anarchist Movement, a radical, racist, anti-capitalist, anti-Marxist, and anti-statist ideology * National Anti-crisis Management, a shadow government created in Belarus in October 2020 * National Army Museum, a national museum of the British Army in London, England * National Association of Manufacturers, an industrial trade association and advocacy group in the US * National Association of Mathematicians, an association for mathematician ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
NGM 700 MB , a Swedish exchange for Nordic growth companies
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NGM can refer to: * NASDAQ Global Market * National Guitar Museum, USA *Neoclassical growth model * Nested Grid Model, for weather prediction * Nevada Gold Mines, a mining company * New Generation Mobile, a phone manufacturer *Nordic Growth Market Nordic Growth Market (NGM Exchange) is a regulated exchange that delivers trading, exchange technology and public company services. Established in 1984, the exchange operates in Sweden, Finland, Denmark, and Norway. Since 2008, Nordic Growth Mar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
2022 Eastern Australia Floods
The 2022 eastern Australia floods were one of the nation's worst recorded flood disasters with a series of floods that occurred from late February to early May in South East Queensland, the Wide Bay–Burnett and parts of coastal New South Wales. Brisbane suffered major flooding, along with the cities of Maryborough, Gympie, the Sunshine Coast, Caboolture, Toowoomba, Gatton, Ipswich, Logan City, the Gold Coast, Murwillumbah, Mullumbimby, Grafton, Byron Bay, Ballina, Lismore, the Central Coast and parts of Sydney. Twenty-four people are known to have died during the disaster. Throughout South East Queensland and the Wide Bay–Burnett, almost one thousand schools were closed in response to the flooding, evacuations took place and the public were advised to avoid non-essential travel. Food shortages were reported across the region, due to the ensuing supply chain crisis as well as affecting communities in outback Queensland. The flooding caused the ground across South W ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
2021 Eastern Australia Floods
Extreme weather, Extreme rainfall on the east coast of Australia beginning on 18 March 2021 led to widespread flooding in New South Wales, affecting regions from the New South Wales North Coast, North Coast to the Sydney metropolitan area in the south. Suburbs of Sydney experienced the worst flooding in 60 years, and the events were described by Premier of New South Wales, NSW Premier Gladys Berejiklian as "100-year flood, one in 100-year" flooding. Far-southeast communities in Queensland were also affected by flooding and heavy rainfall, though to a lesser extent than those in New South Wales. The Australian government declared many parts of the east coast a natural disaster zone after the flooding rains forced 18,000 people to Emergency evacuation, evacuate, in addition to over 1,000 flood rescues. Described as a "prolonged event" by Berejiklian and "dangerous and threatening" by the Bureau of Meteorology, the floods extended from the coastal towns of Taree and Kempsey, New So ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tasman Sea
The Tasman Sea is a marginal sea of the South Pacific Ocean, situated between Australia and New Zealand. It measures about across and about from north to south. The sea was named after the Dutch explorer Abel Janszoon Tasman, who in 1642 was the first known person to cross it. British explorer Lieutenant James Cook later extensively navigated the Tasman Sea in the 1770s during his three voyages of exploration. The Māori people of New Zealand call this sea ''Te Moana-a-Rehua'' meaning 'the sea of Rehua' which clashes with the Pacific waters named ''Te Tai-o-Whitirea'' ('the sea of Whitirea') – after Whitirea, Rehua's lover – at Cape Reinga, the northernmost tip of North Island. Climate The south of the sea is passed over by depressions going from west to east. The northern limit of these westerly winds is near to 40th parallel south, 40°S. During the southern winter, from April to October, the northern branch of these winds from the west changes its direction toward th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Drought In Australia
Drought in Australia is defined by the Australian Bureau of Meteorology as rainfall over period greater than three-months being in the lowest decile of what has been recorded for that region in the past. This definition takes into account that drought is a relative term and rainfall deficiencies need to be compared to typical rainfall patterns including seasonal variations. Specifically, drought in Australia is defined in relation to a rainfall deficiency of pastoral leases and is determined by decile analysis applied to a certain area. Note that this definition uses rainfall only because long-term records are widely available across most of Australia. However, it does not take into account other variables that might be important for establishing surface water balance, such as evaporation and condensation. Historical climatic records are now sufficiently reliable to profile climate variability taking into account expectations for regions. Bureau of Meteorology records since the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hurricane Ian
Hurricane Ian was a devastating tropical cyclone which was the third costliest natural disaster, weather disaster on record worldwide. It was also the deadliest hurricane to strike the state of Florida since the 1935 Labor Day hurricane, and the strongest hurricane to make landfall in Florida since Hurricane Michael, Michael in 2018. Ian caused widespread damage across western Cuba, Florida, and the Carolinas. Ian was the ninth Tropical cyclone naming, named storm, fourth hurricane, and second major hurricane of the 2022 Atlantic hurricane season, and was the first Category 5 hurricane in the Atlantic since Hurricane Lorenzo (2019), Lorenzo in 2019 Atlantic hurricane season, 2019. Ian originated from a tropical wave that moved off the coast of West Africa and across the central tropical Atlantic Ocean, Atlantic towards the Windward Islands. The wave moved into the Caribbean Sea on September 21 bringing heavy rain and gusty winds to Trinidad and Tobago, the ABC island ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
June 2007 Texas Flooding
The June 2007 Texas flooding occurred after heavy rains hit the Southern Plains of the United States. Moisture from the Gulf of Mexico flowed north creating a slow-moving frontal system. Approximately 200 millimeters (8 inches) of rain poured in northern Texas, and 2 flood-related deaths were reported. Meteorological History During mid-June, moisture from the Gulf of Mexico flowed north creating a slow-moving frontal system that caused heavy rains in southern parts of the United States. Approximately 200 millimeters (8 inches) of rain hit northern Texas. The rain fell on swollen streams and lakes as well as wet soil causing heavy flooding in parts of northern Texas. Marble Falls, one of the hardest hit areas, received 18 inches (460 mm) of rain in a period six hours. The headwaters of Lake Marble Falls and Lake Travis had 19 inches of rain totals recorded. Damage 2 flood-related deaths were reported and approximately 300 homes were ordered to evacuate. Estimates of moneta ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oklahoma
Oklahoma ( ; Choctaw language, Choctaw: , ) is a landlocked U.S. state, state in the South Central United States, South Central region of the United States. It borders Texas to the south and west, Kansas to the north, Missouri to the northeast, Arkansas to the east, New Mexico to the west, and Colorado to the northwest. Partially in the western extreme of the Upland South, it is the List of U.S. states and territories by area, 20th-most extensive and the List of U.S. states and territories by population, 28th-most populous of the 50 United States. Its residents are known as Oklahomans and its capital and largest city is Oklahoma City. The state's name is derived from the Choctaw language, Choctaw words , 'people' and , which translates as 'red'. Oklahoma is also known informally by its List of U.S. state and territory nicknames, nickname, "The Sooner State", in reference to the Sooners, American pioneer, American settlers who staked their claims in formerly American Indian-o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Texas
Texas ( , ; or ) is the most populous U.S. state, state in the South Central United States, South Central region of the United States. It borders Louisiana to the east, Arkansas to the northeast, Oklahoma to the north, New Mexico to the west, and has Mexico-United States border, an international border with the Mexican states of Chihuahua (state), Chihuahua, Coahuila, Nuevo León, and Tamaulipas to the south and southwest. Texas has Texas Gulf Coast, a coastline on the Gulf of Mexico to the southeast. Covering and with over 31 million residents as of 2024, it is the second-largest state List of U.S. states and territories by area, by area and List of U.S. states and territories by population, population. Texas is nicknamed the ''Lone Star State'' for its former status as the independent Republic of Texas. Spain was the first European country to Spanish Texas, claim and control Texas. Following French colonization of Texas, a short-lived colony controlled by France, Mexico ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jet Stream
Jet streams are fast flowing, narrow thermal wind, air currents in the Earth's Atmosphere of Earth, atmosphere. The main jet streams are located near the altitude of the tropopause and are westerly winds, flowing west to east around the globe. The northern hemisphere and the southern hemisphere each have a polar jet around their respective polar vortex at around above sea level and typically travelling at around although often considerably faster. Closer to the equator and somewhat higher and somewhat weaker is a subtropical jet. The northern polar jet flows over the middle to northern latitudes of North America, Europe, and Asia and their intervening oceans, while the southern hemisphere polar jet mostly circles Antarctica. Jet streams may start, stop, split into two or more parts, combine into one stream, or flow in various directions including opposite to the direction of the remainder of the jet. The El Niño–Southern Oscillation affects the location of the jet s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Steering Current
Steering is the control of the direction of motion or the components that enable its control. Steering is achieved through various arrangements, among them ailerons for airplanes, rudders for boats, cylic tilting of rotors for helicopters, and many more. Aircraft Aircraft flight control systems are normally steered when airborne by the use of ailerons, spoileron, or both to bank the aircraft into a turn; although the rudder can also be used to turn the aircraft, it is usually used to minimize adverse yaw, rather than as a means to directly cause the turn. On the ground, aircraft are generally steered at low speeds by turning the nosewheel or tailwheel (using a tiller or the rudder pedals) or through differential braking, and by the rudder at high speeds. Missiles, airships and large hovercraft are usually steered by a rudder, thrust vectoring, or both. Small sport hovercraft have similar rudders, but steer mostly by the pilot shifting their weight from side to side and unba ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
