Understanding Radar Correlation Coefficient

Weather radar has come a long way in the past decade. For many years weather radar pulsed horizontally polarized beams. Now thanks to the new and improved dual-polarization that brought vertical polarization to NWS radar sites, we can now see storms in 2D. This means all kinds of new weather radar products that weren’t possible with the old single-polarization radar technology.

We’ll be covering what’s called “correlation coefficient: today as a means of detecting tornadic debris. Detecting Tornadic Debris Signatures (TBS) is one of the largest benefits of using the correlation coefficient radar product.

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