Radar
Dual-Pol Radar Explained: How Radar Sees Raindrops, Hail, Snow, and Debris
How dual-polarization radar works, what extra data it provides, and why it helps meteorologists identify precipitation and debris.
Quick answer: Dual-pol radar sends and receives energy in horizontal and vertical orientations, giving more information about target shape and type.
Why it helps
Different targets have different shapes and behaviors.
Rain, snow, hail, debris, and biological targets can show different dual-pol signatures.
Useful products
Correlation coefficient, differential reflectivity, and specific differential phase help meteorologists classify echoes.
They are most useful when interpreted together.
Safety value
Dual-pol data can support debris detection and precipitation-type analysis.
Warnings still depend on multiple data sources.