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

  1. Nuclear Fuel Cycle Department, School of Nuclear Science & Engineering, Tomsk Polytechnic University
  2. Institute of Applied Mathematics and Computer Science, Tomsk State University
  3. Institute of Cosmophysical Research and Radio Wave Propagation, Far Eastern Branch of the Russian Academy of Sciences
  4. Institute of Monitoring of Climatic and Ecological Systems of Siberian Branch of the Russian Academy of Sciences

 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). A method of estimating the average value of the intensity and amount of precipitation for one event, reconstructing the intensity spectrum from experimental data on the dynamics of the measured dose rate of γ-radiation, is developed. The method takes into account the radioactive decay of radon daughter products in the atmosphere and on the soil surface during precipitation, as well as the purification of the atmosphere from radionuclides...

Yakovleva V. et al. Rainfall Intensity and Quantity Estimation Method Based on Gamma-Dose Rate Monitoring //Sensors. – 2021. – Т. 21. – №. 19. – С. 6411.