What is the difference between the basic reflectivity and the synthetic reflectivity of radar?

The main differences are in nature, function and application, as follows:

First, the nature is different.

1, basic reflectivity

Represents the sum of the diameters of precipitated particles in unit volume to the sixth power (mm6/m3).

2. Combined reflectivity

Refers to the ratio of radar waves reflected by clouds at different heights in a certain range received by weather radar.

Second, the role is different.

1, basic reflectivity

Its value reflects the scale and density distribution of precipitation particles in meteorological targets and is used to express the intensity of meteorological targets.

2. Combined reflectivity

It is the data for judging the thickness and height of clouds and forecasting severe convective weather such as rainstorm and storm.

Third, the application is different.

1, basic reflectivity

Suitable for Doppler weather radar.

2. Combined reflectivity

Generally, combined reflectivity is used in small-scale and extremely accurate weather forecasting systems, such as F 1 racecourse, airport and large ocean-going ships.

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