SRI Profile Correction Example

This example shows the profile correction in a typical situation with bright band at 3 km (1.9 mi), gradient below the bright band (in rain) 3 dBZ/km (4.8 dBZ/mi) and above the bright band (in snow) 10 dBZ/km (16.1 dBZ/mi). Radar is located at height of 0 km (0 mi) and the reference height is at 1 km (0.6 mi). Full power half beam width is 1°.

The correction is calculated for 2 elevations, 1.0° (in black) and 2.0° (in grey). Note that the correction is negative near the radar where measurement it made below the reference height and that the curves have different shapes since the bright band is filling the Gaussian beam only partially.

The reflectivity profile in the case of the example. Note, that at high altitudes the profile soon reaches values below the minimum detectable signal MDS, and or the cloud top.

Profile correction in dB as function of distance from radar for elevation 1.0° (black) and 2.0° (grey).