Generation of ground atmosphere $\alpha$-, $\beta$- and $\gamma$-fields by natural atmospheric radionuclides

The results of numerical investigation of influence of atmospheric turbulence, wind speed and direction as well as radon and thoron flux density from the soil on characteristics of atmospheric $\alpha$-, $\beta$- and $\gamma$-radiation fields, which created by atmospheric radon, thoron and their short-lived decay products, are represented and analyzed in the work. It was showed that variation of radon and thoron flux densities from the earth surface changes yields and flux densities of $\alpha$-, $\beta$- and $\gamma$-radiation in the ground atmosphere proportionally but does not change a form of their vertical profile.