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Piteraq
A piteraq is a cold katabatic wind which originates on the Greenlandic icecap and sweeps down the east coast. The word "piteraq" means "that which attacks you" in the local language.Danish Meteorological InstituteThe Observed Climate of Greenland, 1958–99 p. 96 Piteraqs are most common in the autumn and winter. Wind speeds typically reach 50 to 80 m/s (180–288 km/h; 111–178 mph). The Greenland ice sheet cools the air directly above it. Colder air is denser and it sinks, forming a separate layer of cold air in between warmer air. A piteraq is triggered by low pressure systems off the east coast of Greenland. Piteraqs do not only affect coastal towns, but also large areas of sea to the east of Greenland. On February 6, 1970 at about 6:00 PM, the community of Tasiilaq was hit by the worst documented piteraq ever in Greenland (estimated at 90 m/s — about 325 km/h or 200 mph) (Stronger than a category five Atlantic hurricane) causing severe damage.''ibid.'', p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oroshi
is the Japanese term for a wind blowing strong down the slope of a mountain, occasionally as strong gusts of wind which can cause damage. ''Oroshi'' is a strong local wind across the Kanto Plain on the Pacific Ocean side of central Honshu. This term identifies a katabatic wind. Literary references The ''Oroshi'' wind is mentioned in Japanese poetry, including a poem which is included in the ''Hyakunin Isshu''.Mostow, Joshua S. (1996). Many versions of this poem which were published during the Edo period have ''yama-oroshi'' instead of ''yama-oroshi yo'', but the meaning is equivalent: the poet cries out to the wind; and he the cold down-draft to the heartless woman.Mostow, See also *Halny * Piteraq * Santa Ana winds * Williwaw Notes References * . (1969). , Vol. 20, No. 2, pp. 111–174, 126 Tokyo, Meteorological Research InstituteOCLC 1761858* Mostow, Joshua S., ed. (1996) ''Pictures of the Heart: The Hyakunin Isshu in Word and Image.''Honolulu: University of Ha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Katabatic Wind
A katabatic wind (named from the Greek word κατάβασις ''katabasis'', meaning "descending") is a drainage wind, a wind that carries high-density air from a higher elevation down a slope under the force of gravity. Such winds are sometimes also called fall winds; the spelling catabatic winds is also used. Katabatic winds can rush down elevated slopes at hurricane speeds, but most are not that intense and many are 10 knots (18 km/h) or less. Not all downslope winds are katabatic. For instance, winds such as the föhn and chinook are rain shadow winds where air driven upslope on the windward side of a mountain range drops its moisture and descends leeward drier and warmer. Examples of true katabatic winds include the bora in the Adriatic, the Bohemian Wind or ''Böhmwind'' in the Ore Mountains, the Santa Ana in southern California, the piteraq winds of Greenland, and the oroshi in Japan. Another example is "the Barber", an enhanced katabatic wind that blows over ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Greenland
Greenland ( kl, Kalaallit Nunaat, ; da, Grønland, ) is an island country in North America that is part of the Kingdom of Denmark. It is located between the Arctic and Atlantic oceans, east of the Canadian Arctic Archipelago. Greenland is the world's largest island. It is one of three constituent countries that form the Kingdom of Denmark, along with Denmark and the Faroe Islands; the citizens of these countries are all citizens of Denmark and the European Union. Greenland's capital is Nuuk. Though a part of the continent of North America, Greenland has been politically and culturally associated with Europe (specifically Norway and Denmark, the colonial powers) for more than a millennium, beginning in 986.The Fate of Greenland's Vikings , by Dale Mackenzie Brown, ''Archaeological Institute of Americ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Danish Meteorological Institute
The Danish Meteorological Institute (DMI; da, Danmarks Meteorologiske Institut) is the official Danish meteorological institute, administrated by the Ministry of Energy, Utilities and Climate. The institute makes weather forecasts and observations for Denmark, Greenland, and the Faroe Islands. History It was founded in 1873, largely through the efforts of Ludwig A. Colding. The Danish Meteorological Institute – DMI – encompasses the combined knowledge of the former Meteorological Institute, the Meteorological Service for Civil Aviation and the Meteorological Service for Defence. The Meteorological Institute was founded in 1872 under the Ministry of the Navy. The Meteorological Service for Civil Aviation was established in 1926, and used to be part of the Civil Aviation Administration. The Meteorological Service for Defence was established in 1953. The present-day DMI was established in 1990 through the merger of the three above-mentioned institutions. DMI is organized un ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tasiilaq
Tasiilaq, formerly Ammassalik and Angmagssalik, is a town in the Sermersooq municipality in southeastern Greenland. With 1,985 inhabitants as of 2020, it is the most populous community on the eastern coast, and the seventh-largest town in Greenland. The Sermilik Station, dedicated to the research of the nearby Mittivakkat Glacier, is located near the town. History Prehistory to the fifteenth century The people of Saqqaq culture were the first to reach eastern Greenland, arriving from the north,eastgreenland.com ''History of East Greenland'' through what is now known as Peary Land and Independence Fjord, to be surpassed by the [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Williwaw
In meteorology, a williwaw (archaic spelling williwau) is a sudden blast of wind descending from a mountainous coast to the sea. The word is of unknown origin, but was earliest used by British seamen in the 19th century. The usage appears for winds found in the Strait of Magellan, the Aleutian Islands and the coastal fjords of the Alaskan Panhandle, where the terms ''outflow wind'' and ''squamish wind'' are also used for the same phenomenon. On Greenland the word '' piteraq'' is used. The williwaw results from the descent of cold, dense air from coastal mountains in high latitudes. Thus the williwaw is considered a type of katabatic wind. In popular culture *Gore Vidal's first novel, '' Williwaw'' (1946), based on a ship in the Aleutian Islands, features the williwaw. *In the '' Deadliest Catch'' episode "Finish Line", the ship ''Aleutian Ballad'' crabbed within a williwaw, when a rogue wave damaged the ship and knocked her on her side. *The novel '' Williwaw!'' by Tom Bodett ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bora (wind)
The bora is a northerly to north-easterly katabatic wind in areas near the Adriatic Sea. Similar nomenclature is used for north-eastern winds in other littoral areas of eastern Mediterranean and Black Sea basins. Name It is known in Greek as (''mpóra'', pronounced ''bora'') and Italian as . In English, the name ''bora'' is used. The Serbo-Croatian name and Slovene are not etymologically related to ''bora''; they derive from Common Slavic ''burja'' 'storm' (from the verb ''*burĭti''), and the meaning 'bora' developed later. The same root as ''bora'' is found in the name of the Greek mythological figure of Boreas (Βορέας), and the Modern Greek word for the north wind . Historical linguists speculate that the name may derive from a Proto-Indo-European root *''gworhx-'' 'mountain', which gave rise to Slavic ''gora'' and Sanskrit ''giri-'', both 'mountain'. Features The changeable bora can often be felt all over Adriatic Croatia, Montenegrin Littoral, the Slov ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mistral (wind)
The mistral ( ca, Mestral, el, Μαΐστρος, it, Maestrale, mt, Majjistral, Corsican: ''Maestrale'') is a strong, cold, northwesterly wind that blows from southern France into the Gulf of Lion in the northern Mediterranean. It produces sustained winds often exceeding , sometimes reaching . It is most common in the winter and spring, and strongest in the transition between the two seasons. Periods of the wind exceeding for more than sixty-five hours have been reported. In France, it refers to a violent, cold, north or northwest wind that accelerates when it passes through the valleys of the Rhône and the Durance Rivers to the coast of the Mediterranean around the Camargue region. It affects the northeast of the plain of Languedoc and Provence to the east of Toulon, where it is felt as a strong west wind. It has a major influence all along the Mediterranean coast of France, and often causes sudden storms in the Mediterranean between Corsica and the Balearic Islands. T ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Santa Ana Winds
The Santa Ana winds (sometimes devil winds) "Scholars who have looked into the name's origins generally agree that it derives from Santa Ana Canyon, the portal where the Santa Ana River -- as well as a congested Riverside (CA-91) Freeway -- leaves Riverside County and enters Orange County. When the Santa Anas blow, winds can reach exceptional speeds in this narrow gap between the Puente Hills and Santa Ana Mountains." are strong, extremely dry downslope winds that originate inland and affect coastal Southern California and northern Baja California. They originate from cool, dry high-pressure air masses in the Great Basin. Santa Ana winds are known for the hot, dry weather that they bring in autumn (often the hottest of the year), but they can also arise at other times of the year. They often bring the lowest relative humidities of the year to coastal Southern California, and “beautifully clear skies.” These low humidities, combined with the warm, compressionally-heated air ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Winds
Wind is the natural movement of air or other gases relative to a planet's surface. Winds occur on a range of scales, from thunderstorm flows lasting tens of minutes, to local breezes generated by heating of land surfaces and lasting a few hours, to global winds resulting from the difference in absorption of solar energy between the climate zones on Earth. The two main causes of large-scale atmospheric circulation are the differential heating between the equator and the poles, and the rotation of the planet ( Coriolis effect). Within the tropics and subtropics, thermal low circulations over terrain and high plateaus can drive monsoon circulations. In coastal areas the sea breeze/land breeze cycle can define local winds; in areas that have variable terrain, mountain and valley breezes can prevail. Winds are commonly classified by their spatial scale, their speed and direction, the forces that cause them, the regions in which they occur, and their effect. Winds have variou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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