The Hail Signal product exploits the inherent differences in the radar signatures of rain and hail. Raindrops maintain predominately regular, oblate spheroid shapes as the fall to the earth. Hail stones, however, are irregular in shape and tumble as they fall to the earth. The Zdr for rain is generally positive but may range from 0 to 4 dB whereas the Zdr for hail is generally 0 dB.
Parameters
Upper limit: km Lower limit: km Range: km
Notes
• The upper and lower limits are the heights above and below which data in the data volume are not considered for the for the hail signal product