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2017–18 South-West Indian Ocean Cyclone Season
The 2017–18 South-West Indian Ocean cyclone season was a below-average season that produced only 8 tropical storms, of which 6 became tropical cyclones. It was an event in the annual cycle of a tropical cyclone and subtropical cyclone Tropical cyclogenesis, formation. It officially began on 15 November 2017, and officially ended on 15 May 2018, in Mauritius and the Seychelles. For the rest of the basin, the season ended on 30 April 2018. These dates conventionally delimit the period of each year when most tropical and subtropical cyclones form in the basin, which is west of longitude, 90°E and south of the Equator. Tropical and subtropical cyclones in this basin are monitored by the Regional Specialised Meteorological Centre in Réunion, La Réunion. __TOC__ Seasonal Summary ImageSize = width:800 height:200 PlotArea = top:10 bottom:80 right:20 left:20 Legend = columns:3 left:30 top:58 columnwidth:250 AlignBars = early DateFormat = dd/mm/yyyy Period = from:01/01/201 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cyclone Cebile
In meteorology, a cyclone () is a large air mass that rotates around a strong center of low atmospheric pressure, counterclockwise in the Northern Hemisphere and clockwise in the Southern Hemisphere as viewed from above (opposite to an anticyclone). Cyclones are characterized by inward-spiraling winds that rotate about a zone of low pressure. The largest low-pressure systems are polar vortices and extratropical cyclones of the largest scale (the synoptic scale). Warm-core cyclones such as tropical cyclones and subtropical cyclones also lie within the synoptic scale. Mesocyclones, tornadoes, and dust devils lie within the smaller mesoscale. Upper level cyclones can exist without the presence of a surface low, and can pinch off from the base of the tropical upper tropospheric trough during the summer months in the Northern Hemisphere. Cyclones have also been seen on extraterrestrial planets, such as Mars, Jupiter, and Neptune. Cyclogenesis is the process of cyclone formation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tropical Storm Eliakim
Severe Tropical Storm Eliakim was a tropical cyclone that affected Madagascar and killed 21 people in 2018. The seventh tropical depression, sixth tropical storm of the 2017–18 South-West Indian Ocean cyclone season, and fourth tropical cyclone in 2018 to impact Madagascar, Eliakim was first noted as an area of atmospheric convection south-southwest of Diego Garcia on 9 March. Developmental conditions were favorable in its vicinity, and on 14 March, both the Joint Typhoon Warning Center (JTWC) and Météo-France La Réunion (MFR) began issuing warnings on the system, with MFR designating it as ''Tropical Disturbance 7'' and the JTWC giving it the designation ''14S''. On the next day, MFR upgraded the system to a moderate tropical storm, assigning it the name ''Eliakim''. Eliakim further intensified into a severe tropical storm on 15 March, with the JTWC upgrading it to a Category 1-equivalent cyclone on the Saffir–Simpson scale on 16 March. Eliakim made landfall on Masoala at ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Antananarivo
Antananarivo (Malagasy language, Malagasy: ; French language, French: ''Tananarive'', ), also known by its colonial shorthand form Tana (), is the Capital city, capital and largest city of Madagascar. The administrative area of the city, known as Antananarivo-Renivohitra ("Antananarivo-Mother Hill" or "Antananarivo-Capital"), is the capital of Analamanga region. The city sits at above sea level in the center of the island, making it the List of capital cities by elevation, highest national capital by elevation among the Island country, island countries. It has been the country's largest population center since at least the 18th century. The President of Madagascar, Presidency, National Assembly of Madagascar, National Assembly, Senate of Madagascar, Senate, and Supreme Court are located there, as are List of diplomatic missions in Madagascar, 21 diplomatic missions and the headquarters of many national and international businesses and Non-governmental organization, non-governme ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Météo-France
Météo-France is the official French meteorological administration, also offering services to Andorra and Monaco. It has the powers of the state and can exercise them in relation to meteorology. Météo-France is in charge of observing, studying, and forecasting weather and monitoring snowpack. The organization also issues weather warnings for the Metropole and the overseas territories. Météo-France is also in charge of recording and predicting the climate. Organisation The organisation was established by decree in June 1993 and is a department of the Ministry of Transportation. It is headquartered in Paris but many domestic operations have been decentralised to Toulouse. Its budget of around €300 million is funded by state grants, aeronautic royalties and sale of commercial services. Météo-France has a particularly strong international presence, and is the French representative at the World Meteorological Organization. The organisation is a leading member of EUM ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Saint-Pierre, Réunion
Saint-Pierre (; ) is the third-largest communes of France, commune in the France, French Overseas departments and regions of France, overseas department and region of Réunion. Located on the southwest side of the island, it is the headquarters of the French Southern and Antarctic Lands. History It developed from a port built from 1854 to 1882, which was used for the trade between Asia and Europe. Today, it features 400 sites for fishing and pleasure boats, while most of the commercial traffic moved north to ''Le Port, Réunion, Le Port''. The Hôtel de Ville, Saint-Pierre, Réunion, Hôtel de Ville was completed in 1773. Geography The town of Saint-Pierre is at the beginning of the only major road N3 across the island. From here, the road leads to Le Tampon, La Plaine des Cafres and Bourg Murat. From that area, there is a relatively easy access to the Piton de la Fournaise and a starting point of many excursions. Climate Saint-Pierre has a hot semi-arid climate (Kö ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Communist Party Of Réunion
The Communist Party of Réunion (, PCR) is a communist political party in the French overseas department of Réunion (in the Indian Ocean). History PCR was founded in 1959, as the French Communist Party (PCF) federation in Reunion became an independent party. In the same year, they decided to include demands for autonomy in their manifesto. The party said that it wanted autonomy but not independence. It has since abandoned its policy of autonomism. Paul Vergès led the party from its foundation until February 1993, when he stepped down and Élie Hoarau was elected general secretary; Vergès is currently serving as senator in the French senate. During the late 1990s the relations between PCF and PCR became somewhat strained, regarding differences in party lines. Relations were, however, fully restored in 2005, on the occasion of PCF leader Marie-George Buffet's visit to the island; subsequently, the PCR stood on the list of the French Communist Party in the 2004 European Parl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cyclone Gamede
Intense Tropical Cyclone Gamede was among the wettest tropical cyclones on record, dropping more than of rain in a nine-day period on Réunion island in the southwest Indian Ocean. The seventh named storm of the 2006–07 South-West Indian Ocean cyclone season, Gamede formed south of Diego Garcia on February 19 as a tropical disturbance. It tracked generally westward and steadily intensified, reaching tropical cyclone status on February 23. For two days, Gamede stalled northwest of the Mascarene Islands as an intense tropical cyclone, during which it reached 10 minute maximum sustained winds of winds of , according to the Météo-France meteorological office in Réunion (MFR). The American-based Joint Typhoon Warning Center (JTWC) estimated peak 1 minute winds of , equivalent to a Category 3 on the Saffir–Simpson scale. For four days, Gamede remained within of Réunion before accelerating southward. On March 2, Gamede transitioned into an extratro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mascarene Islands
The Mascarene Islands (, ) or Mascarenes or Mascarenhas Archipelago is a group of islands in the Indian Ocean east of Madagascar consisting of islands belonging to the Republic of Mauritius as well as the French department of Réunion. Their name derives from the Portuguese navigator Pedro Mascarenhas, who first visited them in April 1512. The islands share a common geological origin beneath the Mascarene Plateau known as the Mauritia microcontinent which was a Precambrian microcontinent situated between India and Madagascar until their separation about 70 million years ago. They form a distinct ecoregion with unique biodiversity and endemism of flora and fauna. Geography The archipelago comprises three large islands, Mauritius, Réunion, and Rodrigues, plus a number of volcanic remnants in the tropics of the southwestern Indian Ocean, generally between 700 and 1,500 kilometres east of Madagascar. The terrain includes a variety of reefs, atolls, and small islands. They pres ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tropical Cyclone Scales
Tropical cyclones are ranked on one of five tropical cyclone intensity scales, according to their maximum sustained winds and which tropical cyclone basins they are located in. Only a few classifications are used officially by the meteorological agencies monitoring the tropical cyclones, but other scales also exist, such as accumulated cyclone energy, the Power Dissipation Index, the Integrated Kinetic Energy Index, and the Hurricane Severity Index. Tropical cyclones that develop in the Northern Hemisphere are classified by the warning centres on one of three intensity scales. Tropical cyclones or subtropical cyclones that exist within the North Atlantic Ocean or the North-eastern Pacific Ocean are classified as either tropical depressions or tropical storms. Should a system intensify further and become a hurricane, then it will be classified on the Saffir–Simpson hurricane wind scale, and is based on the estimated maximum sustained winds over a 1-minute period. In the W ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tropical Cyclogenesis
Tropical cyclogenesis is the development and strengthening of a tropical cyclone in the atmosphere. The mechanisms through which tropics, tropical cyclogenesis occur are distinctly different from those through which temperate cyclogenesis occurs. Tropical cyclogenesis involves the development of a warm core, warm-core cyclone, due to significant convection in a favorable atmospheric environment. Tropical cyclogenesis requires six main factors: sufficiently warm sea surface temperatures (at least ), atmospheric instability, high humidity in the lower to middle levels of the troposphere, enough Coriolis force to develop a low-pressure area, low-pressure center, a pre-existing low-level focus or disturbance, and low vertical wind shear. Tropical cyclones tend to develop during the summer, but have been noted in nearly every month in tropical cyclone basins, most basins. Climate cycles such as ENSO and the Madden–Julian oscillation modulate the timing and frequency of tropical c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trade Wind
The trade winds or easterlies are permanent east-to-west prevailing winds that flow in the Earth's equatorial region. The trade winds blow mainly from the northeast in the Northern Hemisphere and from the southeast in the Southern Hemisphere, strengthening during the winter and when the Arctic oscillation is in its warm phase. Trade winds have been used by captains of sailing ships to cross the world's oceans for centuries. They enabled European colonization of the Americas, and trade routes to become established across the Atlantic Ocean and the Pacific Ocean. In meteorology, they act as the prevailing winds, steering flow for tropical storms that form over the Atlantic, Pacific, and southern Indian Ocean, Indian oceans and cause rainfall in North America, Southeast Asia, and Madagascar and East Africa. Shallow Trade wind cumulus cloud, cumulus clouds are seen within trade wind regimes and are capped from becoming taller by a trade wind Inversion (meteorology), inversion, whi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
