Chennai: The continuous rain last month above the city sides the fact that the IMD cannot accurately predict the intensity of rain.
Here are four ways in which he can act together.
Simple forecasts, specific is a surge in Covid-19 case, people are ready to visit friends and relatives for Pongal, but anyone who checks the IMD website or the application is not sure whether to pack an umbrella or sunscreen.
Forecasts for the city on Friday said: “The sky tends to be slightly cloudy.
Rain or mild drizzle is likely to be in several regions.” Similar is the situation at the height of the rainy season, with a safer scale estimate that leads to the agency criticized by all.
Unclear languages, often full of officials, must change, said weather fans.
IMD may have multi-crore equipment, the best of scientists, access to global weather data all the time but fails to place things in simple and specific languages.
Conversely, estimates by the Meteorological Bureau in Australia contain information about the percentage of bathing opportunities, time of day, the possibility of the quantity of rain and the power of UV light.
Even the personal weather blogger uses the same IMD data to present Lucid estimates.
More radarsimd may have to improve radar tissue.
A good network will help sweep the pulse covering each atmosphere.
Doppler’s weather which was almost two decades in Port Chennai aging and meteorologists said the radar in Chennai and karaisa, which can scan the sky in a radius of 400 km, alone may not be enough to cover the entire state.
Experts say install at least two more radars in the interior district are needed.
And knowing the current weather will help them tweak better estimates.
At present, many interior districts are outside the coverage area.
Radar is a key instrument in tracking cyclones when they move above the sea and land.
Officials said Radar Chennai could cover salmon while districts such as Tirupathur, Erode, Coimbatore, Karur and Namakkal were not covered.
Likewise, karaical radar can cover up Ramanathapuram and areas such as Tuticorin, Tirunelveli and Kankumari are outside the coverage area.
On January 6, the trial of calibration was carried out on the new X-Band radar installed at the National Institute of Ocean Technology, Palikarani used drones for the first time.
It has a 150km radius coverage.
The use of broad weather balloons we may require more weather balloons to study changes in the upper air to estimate low pressure or hurrican traces.
They will be arrested, to some extent, changes in atmosphere carrying 20cm rain carrying the city in early November.
Now, the weather balloon is attached to GPS-based instruments flown twice from mealambakkam and karaisa to produce upper air data on pressure, temperature, relative humidity, wind speed and direction.
Data is the key to running the weather forecast model to estimate the upper air circulation, the height through the trough and the movement of low pressure systems and cyclones.
Meteorologists also say that forecasting accuracy can be increased if such balloons are flown on the ocean, which greatly affects the weather in the state.
The more good estimated model may use the best estimated model processed by supercomputers, but will require a higher resolution model to learn all changes in the atmospheric area instead of the current range of 12km to predict the intensity of rain more accurately.
20cm rain on November 6-7 and 10cm rain on December 30 can be captured only if the model can learn variations in smaller areas because in an extensive atmosphere and oceans, small changes at temperatures or winds at the top level can have a greater impact.
The Met Department is now working to improve its server and equipment.
M Ravichandran, Secretary, Union Minister of Earth Sciences, said “At present, we only use a rough model with a 12 km highest resolution.
Because extreme weather conditions become common, we need to develop a strategy to estimate it.
We must go for a higher resolution model.
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