RT Journal Article ID 77a01e815e640e26 A1 Paznukhov, A. V. A1 Yampolski, Yu. M. A1 Zanimonskiy, Y. M. A1 Soina, A.V. T1 SEARCHING THE "WEEKEND EFFECT" IN INTENSITY VARIATIONS OF THE NATURAL ELF NOISE JF Radio Physics and Radio Astronomy JO RPRA YR 2012 FD 2012-08-13 VO 3 IS 3 SP 251 OP 257 K1 weekend effect K1 weekly variations K1 anthropogenic activity K1 Schumann resonator K1 thunderstorm activity AB A review of papers focused on investigating weekly cycles in various environmental parameters is presented. The existing studies are systematized according to the terrain where estimates have been obtained and parameters for which the weekly cycle has been revealed. Weekly variations in air temperature, atmospheric pressure, number of earthquakes, tropospheric ozone concentration, number of forest fires and other parameters are considered. Seven-day variations in the ELF noise intensity are analyzed using data obtained at the Ukrainian Antarctic Station "Akademik Vernadsky" and at the Low Frequency Observatory of the Institute of Radio Astronomy, National Academy of Sciences of Ukraine at Martove village (Kharkiv region, Ukraine). A hypothesis is suggested to explain possible anthropogenic impact on the global thunderstorm activity. PB Begell House LK https://www.dl.begellhouse.com/journals/6fd1549c0e2c05da,4e9409a35a49a927,77a01e815e640e26.html