Effect of Transmission Through the Earth on Neutrino Oscillations

Large transformation and regeneration phenomena are calculated to result from transmission through the Earth of neutrinos whose E(MeV)/\ensuremath{\Delta}${m}^{2}$(${\mathrm{eV}}^{2}$) lie in the vicinity of ${10}^{6}$--${10}^{7}$. As a result large time-of-night and seasonal variations are predicted for solar neutrinos in this parameter range.