Rainfall Intensity and Quantity Estimation Method Based on Gamma-Dose Rate Monitoring.

The features of the atmospheric γ-background reaction to liquid atmospheric precipitation in the form of bursts is investigated, and various forms of them are analyzed. A method is described for interpreting forms of the measured γ-background response with the determination of the beginning and ending time of precipitation, the distinctive features of changes in the intensity of precipitation and the number of single (separate) events that form one burst. It is revealed that a change in the intensity of precipitation in one event leads to a change in the γ-radiation dose rate increase speed (time derivative).

Effect of precipitation on the background levels of the atmospheric β- and γ-radiation.

Results of experimental and theoretical studies of the responses of the β- and γ-radiation fields in the surface atmosphere to precipitation are presented. Most of the bursts of the β-radiation flux density and γ-radiation dose rate were found to coincide with periods of precipitation. However, the magnitude of bursts does not always correlate with the intensity of the precipitation.