What is one advantage of using a switched dual-pol radar?

Using a switched dual-polarization radar provides the distinct advantage of measuring the linear depolarization ratio (LDR). This measurement is crucial in meteorology as it helps distinguish between different types of precipitation and also aids in identifying non-meteorological targets, such as insects or birds.

LDR is calculated by comparing the power of horizontally polarized returned signals to that of vertically polarized signals. It allows for enhanced analysis of the shape and size of precipitation particles, enabling meteorologists to gain insights into the different phases of precipitation and improve the characterization of storm systems.

The other options relate to aspects of radar functionality, such as direct measurements of certain variables or scanning capabilities, but they do not specifically highlight the unique benefit of LDR measurement associated with switched dual-pol radar technology. Therefore, measuring LDR stands out as a key advantage, as it enriches the information available for precipitation analysis and improves weather forecasting accuracy.