New technology helps meteorologists keep track of hurricanes at night.

Maryland Heights, mo. – In the last three months of 2021, there have been two hurricanes around St. Louis. Climate expert Chris Higgins showed us the technology that allows us to keep a close eye on those hurricanes, even in the dark of night.

The signature ruins of the Tornado are truly new to meteorology. This has only been possible with the release of dual-polarized Doppler radar over the past decade.

Kevin Datesh is a Meteorological Coordinator at the National Bureau of Meteorology in Welden Spring. The two polarized data were particularly helpful during the last two epidemics because both occurred at night.

“It is important because there is no accurate report on hurricanes. “Obviously we love our inquirers and we want our inquirers, but it is very difficult to see these things at night,” said Dayish.

So how does a double-polarization radar detect storms? Like any radar, it sends rays of energy into the clouds. When that force hits a raindrop or a snowflake, some of that energy is returned to the radar. This is how we can say that something is there.

The new dual-polarization radar sends exactly two volumes, one horizontal and one vertical. That allows us to measure the consistency of the target shapes and sizes. That is the great progress!

Rain drops are very consistent in shape and size. But they are not the wreckage of a hurricane. Because from houses, trees, buildings – anything that can take a hurricane up into the air.

Double-polarization information is useful after a hurricane during a forensic reconstruction. By looking for TDS signatures, survey staff have a better idea of ​​where to look for damage. Sometimes you can see the ones you can’t get off the ground using high-resolution satellite data from space.

“If the storm passes through forests with many leaves, corn fields and the like, we can see the blood circulation in some of the debris,” said the Dutch.

This is exactly what happened after the December 10 hurricane. TDS’s signature combined with satellite data confirms that the first hurricane service was continuously on the ground with a total distance of 25 miles from the Defensive to Maryland Heights.

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