Dvorak Technique
About Vernon Dvorak:
- The Dvorak (pronounced Do-rak) approach was created in the early 1970s by American meteorologist Dvorak.
- The method aids in tropical storm forecasting.
- Millions of lives have already been saved by his method, and it will continue to do so.
The Dvorak technique:
- The Dvorak method was created for detecting storms in the northwest Pacific Ocean in 1969.
- Forecasters examined the characteristics of the forming tropical storms using the satellite photos that were accessible from polar orbiting satellites (hurricanes, cyclones and typhoons).
- Photos in the visible spectrum were used during the day, and infrared images were used to examine the ocean at night.
- It was a method of recognising cloud patterns that was based on a conceptual model of the growth and demise of the tropical cyclone.
Why is technique still so prevalent?
- In contrast to land, there were little ocean observations in the 1970s.
- The network of land-based meteorological observations is still being developed today, whether it be through the use of automatic rain gauges, automatic weather stations, or human observations.
- However, there are currently few observations of the ocean.
- The four oceans have several enormous areas that have not been thoroughly explored using meteorological devices.
- The majority of ocean observations are made by sending out buoys or special ships, however there are still not enough observations made from the oceans worldwide.
- To anticipate the strength and wind speed of tropical storms, meteorologists have had to rely more on satellite-based imagery and combine it with the available ocean data.