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TROPICAL CYCLONE CLASSIFICATION SYSTEM SATELLITE IMAGERY [2 records]

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Record 1 2004-09-30

English

Subject field(s)
  • Meteorological Forecasting, Data Measurement and Analysis
CONT

... T-numbers are used to measure the intensity of cyclones, they are part of the Dvorak Scale, a methodology for estimating the intensity of tropical cyclones.

CONT

The classification number [of the tropical cyclone classification system from satellite imagery] is called the "T-number" or "current intensity(CI) number" and is related to cyclone intensity.

CONT

The diagrams at the top of the graph illustrate the day-by-day changes in the shape of the cloud bands for a typical storm. The vertical axis of the graph is the tropical number (T-number) of the tropical cyclone. This number rates the intensity of the storm. Normally, a cyclone will exhibit a growth rate of 1 T-number per day. The straight line represents the intensity change and typical growth rate of a hurricane. The wavy line superimposed on the graph represents the degree of expected variability of intensity on a day-to-day basis.

OBS

tropical cyclone classification system from satellite imagery : The classification of a tropical cyclone(on a scale of 1 to 8) from its appearance in visible and/or infrared satellite pictures.

Key term(s)
  • T number
  • current-intensity number

French

Domaine(s)
  • Prévisions météorologiques et mesure et analyse des données
CONT

Le numéro de classification [du système de classification des cyclones tropicaux d'après les images satellitaires] est appelé «nombre T» ou «nombre CI (current intensity)» et est relié à l'intensité du cyclone.

CONT

[...] l'utilisation de la méthode de Dvorak consiste à parcourir un arbre de décision comprenant une dizaines d'étapes. À la fin, on attribue au système un nombre d'intensité que l'on reporte sur une échelle («l'échelle de Dvorak», on y est.) pour en déduire la vitesse maximale du vent près du centre, ainsi que la pression minimale au cour du système.

OBS

système de classification des cyclones tropicaux d'après les images satellitaires : Classification des cyclones tropicaux (échelle de 1 à 8) basée sur leur morphologie dans les images satellitaires en visible et/ou en infrarouge.

Spanish

Campo(s) temático(s)
  • Previsiones meteorológicas, medición y análisis de datos
CONT

El número de clasificación se denomina "número T" o "número CI (current intensity)" y guarda relación con la intensidad del ciclón.

OBS

sistema de clasificación de ciclones tropicales por imágenes satelitales: Clasificación de los ciclones tropicales (escala de 1 a 8) basada en su morfología en las fotografías obtenidas por satélite en visible o infrarrojo.

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Record 2 1992-12-31

English

Subject field(s)
  • Meteorological Forecasting, Data Measurement and Analysis
DEF

The classification of a tropical cyclone (on a scale of 1 to 8) from its appearance in visible and/or infrared satellite pictures.

OBS

The classification number is called the "T-number" or "current intensity (CI) number" and is related to cyclone intensity. Very weak cyclones are not classified.

French

Domaine(s)
  • Prévisions météorologiques et mesure et analyse des données
DEF

Classification des cyclones tropicaux (échelle de 1 à 8) basée sur leur morphologie dans les images satellitaires en visible et/ou en infrarouge.

OBS

Le numéro de classification est appelé «nombre T» ou «nombre CI (current intensity)» et est relié à l'intensité du cyclone. Les cyclones de très faible intensité ne sont pas classés.

Spanish

Campo(s) temático(s)
  • Previsiones meteorológicas, medición y análisis de datos
DEF

Clasificación de los ciclones tropicales (escala de 1 a 8) basada en su morfología en las fotografías obtenidas por satélite en visible o infrarrojo.

OBS

El número de clasificación se denomina "número T" o "número CI (current intensity)" y guarda relación con la intensidad del ciclón. No se clasifican los ciclones de muy débil intensidad.

Save record 2

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