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The Dvorak technique (developed between 1969 and 1984 by Vernon Dvorak) is a widely used system to estimate tropical cyclone intensity (which includes tropical depression, tropical storm, and hurricane/typhoon/intense tropical cyclone intensities) based solely on visible and infrared satellite images. Within the Dvorak satellite strength estimate for tropical cyclones, there are several visual patterns that a cyclone may take on which define the upper and lower bounds on its intensity. The primary patterns used are curved band pattern (T1.0-T4.5), shear pattern (T1.5–T3.5), central dense overcast (CDO) pattern (T2.5–T5.0), central cold cover (CCC) pattern, banding eye pattern (T4.0–T4.5), and eye pattern (T4.5–T8.0).

AttributesValues
rdf:type
rdfs:label
  • Tècnica Dvorak (ca)
  • Dvorak-Technik (de)
  • Dvorak technique (en)
  • Technique de Dvorak (fr)
  • 드보락법 (ko)
  • ドボラック法 (ja)
  • Dvoraktechniek (nl)
  • Metoda Dvoraka (pl)
  • Técnica Dvorak (pt)
  • Dvorakteknik (sv)
  • 德沃夏克分析法 (zh)
rdfs:comment
  • La tècnica de Dvorak, es va desenvolupar l'any 1974 per , era un mètode d'avaluació subjectiva de la intensitat dels ciclons tropicals basada en l'estudi desl espectres visibles i infrarojos obtinguts pels satèl·lits meteorològics. Molts centres de previsió de ciclons de tot el món utilitzen aquesta tècnica. (ca)
  • Die Dvorak-Technik (entwickelt 1974 von Vernon Dvorak) ist ein gebräuchliches System, um die Intensität von tropischen Wirbelstürmen subjektiv mittels Satellitenbildern und Infrarotaufnahmen zu bestimmen. (de)
  • La technique de Dvorak, développée en 1974 par Vernon Dvorak, est une méthode d'évaluation subjective de l'intensité des cyclones tropicaux basée sur l'étude des photos satellitaires des spectres visibles et infrarouges. Plusieurs centres de prévision des cyclones à travers le monde utilisent cette technique. Parmi ces centres on retrouve aux États-Unis, le National Hurricane Center, le centre d'analyse satellitaire (NESDIS Satellite Analysis Branch de la NOAA), le centre inter-armes du Pacifique (Joint Typhoon Warning Center), le centre météorologique de la US Air Force et le Pacific Hurricane Center. (fr)
  • ドボラック法(ドボラックほう、英語: Dvorak methodまたは英: Dvorak technique)は、気象衛星が可視光・赤外線で撮影した画像を利用して、熱帯低気圧の勢力(中心気圧・最大風速・台風半径など)を推定する手法である。1974年にによって開発された。1974年頃にスタートした解析法は、画像のパターンテーブルと、実際に観測で得られた画像を対比して、その結果から勢力などの推定を行う方法であった。スタート当初から画像のサンプル数が少ない、解析の客観性が乏しいなどがあり改良されている。また赤外画像からでも解析できるように改良が施されている。 (ja)
  • 드보락법(Dvorak method 또는 Dvorak technique)은 1974년에 미국 기상학자 버논 드보락(Vernon Dvorak)이 고안한 방법으로 기상위성사진에 찍힌 구름의 패턴을 보고 열대저기압(태풍)의 중심기압과 최대풍속 등 강도를 추정하는 방법이다. (ko)
  • De Dvoraktechniek is een techniek voor subjectieve beoordeling van tropische cyclonen aan de hand van kenmerken, die zij op satellietbeelden, in zichtbaar licht en infrarood vertonen. De techniek wordt door verschillende instituten gebruikt en de beoordeling, uitgedrukt in T-nummers, Dvoraknummers of CI-nummers, wordt gepubliceerd door onder andere de Tropical Analysis and Forecast Branch (TAFB) van het National Hurricane Center, de NOAA/NESDIS Satellite Analysis Branch (SAB) en het Air Force Weather Agency (AFWA). (nl)
  • Metoda Dvoraka – sposób oceny intensywności cyklonów tropikalnych na podstawie zdjęć satelitarnych (klasycznych i w podczerwieni), opracowany przez amerykańskiego meteorologa Vernona F. Dvoraka w latach 1969–1984. Wśród instytucji stosujących tę metodę wymienić można (TAFB), (SAB) oraz (JTWC). (pl)
  • 德沃夏克分析法(英語:Dvorak Technique)是由維農·德沃夏克(Vernon Dvorak)根據多年經驗及統計概括後所創下的一項利用地球同步衛星的可見光及紅外線衛星雲圖來評估熱帶氣旋強度的方法。 德沃夏克分析法是現時國際通行的分析法。這套分析法在1984年發表,1987年正式由世界氣象組織通過使用。 (zh)
  • The Dvorak technique (developed between 1969 and 1984 by Vernon Dvorak) is a widely used system to estimate tropical cyclone intensity (which includes tropical depression, tropical storm, and hurricane/typhoon/intense tropical cyclone intensities) based solely on visible and infrared satellite images. Within the Dvorak satellite strength estimate for tropical cyclones, there are several visual patterns that a cyclone may take on which define the upper and lower bounds on its intensity. The primary patterns used are curved band pattern (T1.0-T4.5), shear pattern (T1.5–T3.5), central dense overcast (CDO) pattern (T2.5–T5.0), central cold cover (CCC) pattern, banding eye pattern (T4.0–T4.5), and eye pattern (T4.5–T8.0). (en)
  • Dvorakteknik, även kallad Dvorakskalan, är en teknik som används att bedöma/beräkna intensiteten på tropiska cykloner utifrån vanliga och infraröda satellitbilder. Tekniken är därmed en indirekt mätmetod eftersom man inte gör observationer inne i själva ovädret. Tekniken används flitigt av och andra meteorologiska institut världen över som övervakar tropiska cykloner. Dvoraktekniken utvecklades i mitten av 1970-talet av den amerikanska meteorologen . (sv)
  • A técnica Dvorak (desenvolvida entre 1969 e 1984 por Vernon Dvorak) é um sistema amplamente utilizado para estimar a intensidade do ciclone tropical (que inclui depressão tropical, tempestade tropical e intensidades de furacão / tufão / ciclone tropical intenso) com base exclusivamente em imagens de satélite visível e infravermelho. Dentro da estimativa da força do satélite Dvorak para ciclones tropicais, existem vários padrões visuais que um ciclone pode assumir que definem os limites superior e inferior de sua intensidade. Os padrões primários usados são o padrão de banda curva (T1.0-T4.5), o padrão de cisalhamento (T1.5-T3.5), o padrão central denso (CDO) (T2.5-T5.0), cobertura fria central (CCC) padrão, padrão ocular com faixas (T4.0 – T4.5) e padrão ocular (T4.5 – T8.0). (pt)
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  • http://commons.wikimedia.org/wiki/Special:FilePath/DvorakCDP1973.png
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  • http://commons.wikimedia.org/wiki/Special:FilePath/Haiyan_2013-11-07_1430Z_IR-BD_lineless.png
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  • http://commons.wikimedia.org/wiki/Special:FilePath/Subtropical_Storm_Andrea_2007.jpg
  • http://commons.wikimedia.org/wiki/Special:FilePath/Wilma-17-1315z-T30-discussion1500z.png
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