Fujitan asteikko

Boforiasteikon, Fujitan asteikon ja Mach-luvun suhde.

Fujitan asteikolla mitataan tornadon tai trombin aiheuttamaa tuhoa, joka riippuu tornadon tai trombin nopeudesta. Asteikolla nopeus ulottuu 18 m/s:stä äänen nopeuteen noin 330 m/s:iin. F5:tä voimakkaampaa tornadoa ei ole havaittu. Heikon tornadon eli F0:n tuulet puhaltavat 18-32 m/s ja äärimmäisen voimakkaan tornadon eli F5:n 120-150 m/s. Veden yllä kulkeva tornado eli vesipatsas, joka ei käy maalla missään vaiheessa, ei aiheuta minkäänlaista tuhoa, jolloin se luokitellaan saman tien F0:ksi.

Fujitan asteikko sai nimensä japanilaiselta Tetsuya Thodore Fujitalta (1920-1998), joka tutki tornadoja ja voimakkaita ukkosmyrskyjä. Vuonna 1953 hän muutti Japanista Yhdysvaltoihin ja sai kutsumanimekseen Mr. Tornado. Hän tiesi, että myrskyissä tuulen nopeuden mittaminen on vaikeaa, joten hän ehdotti vuonna 1971 käyttöön asteikkoa, jossa voimakkuuden mittaus tapahtuisi tuhojen mukaan. Tämä asteikko nimettiin Fujitan asteikoksi.

Tornadojen luokitus Fujitan asteikon pohjalta

F Tuulen nopeus Kuvaus Vaikutus
solmua m/s km/h mph
F0 alle 63 alle 32 alle 115 alle 72 Heikko tornado
(Weak tornado)
repii kattoja, siirtää autoja
F1 63—97 32—50 115—179 72—112
F2 98—136 50—70 180—251 113—157 Voimakas tornado
(Strong tornado)
kiskoo puita juurineen, hajottaa parakkeja, raskaat ajoneuvot nousevat ilmaan
F3 137—179 70—92 252—330 158—206
F4 180—226 92—116 331—416 207—260 Erittäin voimakas tornado
(Violent tornado)
autot lentävät ilmassa yli 100 metriä, rakennukset tuhoutuvat tai lentävät ilmassa
F5 226 ja yli 116 ja yli 416 ja yli 260 ja yli

Muita asteikkoja

Aiheesta muualla

Read other articles:

Ciung-batu kalimantan Status konservasi Risiko Rendah (IUCN 3.1) Klasifikasi ilmiah Kerajaan: Animalia Filum: Chordata Kelas: Aves Ordo: Passeriformes Famili: Turdidae Genus: Myophonus Spesies: M. borneensis Nama binomial Myophonus borneensisP.L. Sclater, 1885 Ciung-batu kalimantan (Myophonus borneensis) adalah salah satu spesies burung di dalam keluarga Turdidae. Dapat ditemukan di Indonesia dan Malaysia. Habitat alaminya adalah pegunungan-hutan lembap subtropis atau tropis. Rujuk...

 

Artikel ini sebatang kara, artinya tidak ada artikel lain yang memiliki pranala balik ke halaman ini.Bantulah menambah pranala ke artikel ini dari artikel yang berhubungan atau coba peralatan pencari pranala.Tag ini diberikan pada Januari 2023. Artikel ini sebatang kara, artinya tidak ada artikel lain yang memiliki pranala balik ke halaman ini.Bantulah menambah pranala ke artikel ini dari artikel yang berhubungan atau coba peralatan pencari pranala.Tag ini diberikan pada Oktober 2022. IRSA Lo...

 

معتمدية جلمة تقسيم إداري  البلد تونس[1]  التقسيم الأعلى ولاية سيدي بوزيد  رمز جيونيمز 11106668  تعديل مصدري - تعديل   معتمدية جلمة إحدى معتمديات الجمهورية التونسية، تابعة لولاية سيدي بوزيد. مراجع ^   صفحة معتمدية جلمة في GeoNames ID. GeoNames ID. اطلع عليه بتاريخ 2024-02-20. ا�...

Road in eastern Ireland R160 roadBóthar R160Tractor on the R160Route informationLength20.4 km (12.7 mi)Major junctionsFrom R154 / R933 TrimMajor intersections R158 Trim (Summerhill Road) R156 BrannockstownCrosses Leinster BlackwaterPasses through LongwoodCrosses Royal Canal and Western Commuter railway line; enters County KildareTo R148 Ballynadrumny LocationCountryIreland Highway system Roads in Ireland Motorways Primary Secondary Regional The R160 road is a regional road in ...

 

Kendriya Vidyalaya Maligaon is a higher secondary school located at the Maligaon area in Guwahati, Assam, India.[1][2][3] It was established in 1979 and is affiliated with the Central Board of Secondary Education (CBSE). The school provides education to the children of Central Government employees, especially railway employees,armed forces and paramilitary personnel. The school is run by KVS an autonomous body formed under the Ministry of Human Resource Development, G...

 

Meresankh IIRatu MesirSarkofagus Meresankh IIPemakamanmastaba G 7410-7420, GizaAyahFiraun KhufuIbuRatu Meritites ISpouse(s)Pangeran HorbaefFiraun Djedefre atau KhafraAnakPutri Nefertkau IIIPutri Nebty-tepitesPangeran DjatyAgamaAgama Mesir Kuno Meresankh II (Dia Mencintai Kehidupan) adalah seorang Ratu Mesir yang hidup pada zaman Dinasti ke-IV. Keluarga Orang tua Meresankh II diduga adalah Raja Khufu dan Ratu Meritites I karena mereka disebutkan dalam mastaba Meresankh tetapi dia tidak pernah ...

British Baroness (born 1941) The Right HonourableThe Baroness SternCBEMember of the House of LordsLord TemporalIncumbentAssumed office 13 July 1999Life Peerage Personal detailsBorn (1941-09-25) 25 September 1941 (age 82)Political partyCrossbenchSpouseProfessor Andrew Coyle Vivien Helen Stern, Baroness Stern CBE (born 25 September 1941) is a crossbench member of the House of Lords. Stern was educated at Kent College and read English literature at Bristol University where she graduated...

 

Former Royal Navy Dockyard in Kent, England HM Dockyard, Sheerness Part of Nore CommandSheerness, Kent View from Garrison Point Fort across the Gun Wharf and Boat Pond, Sheerness Dockyard, 1941.Site informationOperatorRoyal NavyControlled byThe Navy Board (until 1832); the Admiralty (after 1832).ConditionPart-preservedSite historyIn use1665-1960FateNow in use as a commercial portEventsRaid on the Medway, 1667 Sheerness Dockyard was a Royal Navy Dockyard located on the Sheerness peni...

 

Pour les articles homonymes, voir 6e régiment d'artillerie. Cet article est une ébauche concernant une unité ou formation militaire française. Vous pouvez partager vos connaissances en l’améliorant (comment ?) selon les recommandations des projets correspondants. 6e régiment d'artillerie Insignes régimentaire du 6e Régiment d’Artillerie Création 1791 Pays France Branche Armée de Terre Type Régiment d'Artillerie Rôle Artillerie Inscriptionssur l’emblème Valmy 1792Fleur...

Pour les articles homonymes, voir Schleck. Andy SchleckAndy Schleck en 2013InformationsNom de naissance Andy Raymond SchleckNaissance 10 juin 1985 (38 ans)LuxembourgNationalité luxembourgeoiseSpécialité Courses par étapes Grimpeur[1]Équipes amateurs 1997-19992000-200220032004SAF ZéissengLC TétangeLP MuhlenbachVC Roubaix Lille MétropoleÉquipes professionnelles 09.2004-12.2004CSC (stagiaire)2005-2008CSC2009-2010Saxo Bank2011 Leopard-Trek2012RadioShack-Nissan2013RadioShack-Leopard...

 

Sceaux 行政国 フランス地域圏 (Région) イル=ド=フランス地域圏県 (département) オー=ド=セーヌ県郡 (arrondissement) アントニー郡小郡 (canton) 小郡庁所在地INSEEコード 92071郵便番号 92330市長(任期) フィリップ・ローラン(2008年-2014年)自治体間連合 (fr) メトロポール・デュ・グラン・パリ人口動態人口 19,679人(2007年)人口密度 5466人/km2住民の呼称 Scéens地理座標 北緯48度4...

 

Town in Arkansas, United StatesSt. Charles, ArkansasTownLocation in Arkansas County and the state of ArkansasCoordinates: 34°22′30″N 91°07′55″W / 34.37500°N 91.13194°W / 34.37500; -91.13194CountryUnited StatesStateArkansasCountyArkansasArea[1] • Total0.89 sq mi (2.30 km2) • Land0.89 sq mi (2.30 km2) • Water0.00 sq mi (0.00 km2)Elevation[2]200 ft (60 m...

此條目需要补充更多来源。 (2021年7月4日)请协助補充多方面可靠来源以改善这篇条目,无法查证的内容可能會因為异议提出而被移除。致使用者:请搜索一下条目的标题(来源搜索:美国众议院 — 网页、新闻、书籍、学术、图像),以检查网络上是否存在该主题的更多可靠来源(判定指引)。 美國眾議院 United States House of Representatives第118届美国国会众议院徽章 众议院旗...

 

Megalithic temple complex in Malta Ħaġar QimFacade of the main temple of Ħaġar Qim, seen prior to the 2009 construction of a protective shelterLocation within MaltaLocationQrendi, MaltaCoordinates35°49′40″N 14°26′32″E / 35.82778°N 14.44222°E / 35.82778; 14.44222TypeTempleHistoryMaterialLimestoneFoundedc. 3700 BC – c. 3200 BCPeriodsĠgantija phaseSite notesExcavation dates1839–1954ArchaeologistsJ. G. VanceAntonio Annetto Car...

 

Russian printer Ivan FyodorovThe first monument to Fyodorov was unveiled in front of the Moscow Print Yard in 1909Bornc. 1510–1525Grand Duchy of Moscow (also possibly, not far from Minsk, Grand Duchy of Lithuania)Died16 December 1583Lviv, Polish–Lithuanian CommonwealthOccupationsInventorcraftsmanKnown forfirst Russian printer Ivan Fyodorov or Ivan Fеdorov[1] (Russian: Ива́н Фёдоров; Ukrainian: Іван Федоров; born c. 1510 or c. 1525 – died Decemb...

Dawenkou cultureGeographical rangeNorth ChinaPeriodNeolithic ChinaDatesc. 4300 – c. 2600 BCPreceded byBeixin cultureFollowed byLongshan cultureChinese nameChinese大汶口文化TranscriptionsStandard MandarinHanyu PinyinDàwènkǒu wénhuà The Dawenkou culture was a Chinese Neolithic culture primarily located in the eastern province of Shandong, but also appearing in Anhui, Henan and Jiangsu. The culture existed from 4300 to 2600 BC, and co-existed with the Yangshao culture. Turquoise, jad...

 

(29075) 1950 DAPenemuanDitemukan olehC. A. WirtanenSitus penemuan662Tanggal penemuan1950/02/22Ciri-ciri orbitAphelion2.561Perihelion0.836Sumbu semimayor1.699Eksentrisitas0.508Anomali rata-rata242.3Inklinasi12.2Bujur node menaik356.7Argumen perihelion224.6Ciri-ciri fisikMagnitudo mutlak (H)17.1 (29075) 1950 DA adalah sebuah asteroid. Asteroid ini merupakan bagian dari asteroid Apollo, yang terletak dekat dengan bumi. Eksentrisitas orbit asteroid ini tercatat sebesar 0....

 

Chinese golfer (born 1999) Muni HeHe at the 2022 British Grand PrixPersonal informationFull nameMuni He[1]NicknameLily[2]Born (1999-06-17) 17 June 1999 (age 25)Chengdu, Sichuan, ChinaHeight163 cm (5 ft 4 in)Sporting nationality ChinaCareerCollegeUniversity of Southern CaliforniaTurned professional2017Current tour(s)LPGA Tour (joined 2019)Former tour(s)Symetra Tour (joined 2017)Professional wins1Number of wins by tourEpson Tour1Best results in LPGA majo...

Peruvian footballer (born 1949) Hugo Sotil Sotil with FC BarcelonaPersonal informationFull name Hugo Alejandro Sotil YerénDate of birth (1949-05-18) 18 May 1949 (age 75)Place of birth Ica, PeruHeight 1.69 m (5 ft 7 in)Position(s) StrikerYouth career Club Gaillard Deportivo MunicipalSenior career*Years Team Apps (Gls)1968–1973 Deportivo Municipal 121 (57)1973–1977 Barcelona 65 (21)1977–1978 Alianza Lima 54 (30)1979–1980 Independiente Medellín 32 (8)1981–1982 Dep...

 

1873 American federal law Politicians accusing each other for taking the Salary Grab. The caption reads: That salary grab—You took it. Frank Leslie's Illustrated Newspaper, 27 December 1873 The Salary Grab Act, officially known as the Legislative, Executive, and Judicial Expenses Appropriation Act,[1] was passed by the United States Congress on March 3, 1873, and sparked a firestorm of controversy among members of the government, the general public, and the press. President Ulysses ...