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Ecology & Environment
Mahesh

25/09/22 09:17 AM IST

Advanced Dvorak Technique (ADT)

In News 
  • Recently, American meteorologist Vernon Dvorak, credited with having developed ADT in the 1970s,  passed away at the age of 100.
Dvorak Technique 
  • The Dvorak Technique continues to be widely relied upon by forecasters till date, despite the developments in advanced satellite technology, Machine Learning (ML) and Artificial Intelligence (AI).
  • Dvorak Technique is a cloud pattern recognition technique based on a concept model of the development and decay of the tropical cyclone.
  • Dvorak Technique is s statistical method for estimating the intensity of tropical cyclones (TCs) from interpretation of satellite imagery.
  • Uses regular Infrared and Visible imagery.
  • Based on a “measurement” of the cyclone’s convective cloud pattern and a set of rules.
  • It is used at tropical cyclone warning centers around the world.
Significance 
  • It helps forecasters to do a pattern recognition from the observed structure of the storm, locate its eye and estimate the intensity of the storm.
  • It enables scientists to measure the cyclone’s convective cloud pattern — curved bands, eye and central dense or cold region and shear.
  • It gives the best estimates of the cyclone intensity — a vital component while issuing weather warnings.
  • It is crucial for local administration in planning evacuation measures of coastal or other nearby residents.
  • However, it cannot make any predictions related to wind or pressure or any other meteorological parameters associated with the cyclone.
Source- DTE 

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