TY  JOUR
TI  Critical level influence on the spectra of secondary gravity waves in the middle and upper atmosphere
KW  acoustic-gravity waves
KW  spectrum
KW  secondary waves
KW  numerical simulation
KW  upper atmosphere
KW  middle atmosphere
JO  Solar-Terrestrial Physics
AU  Gavrilov, N.M.
AU  Kshevetskii, S.P.
AU  Koval, A.V.
AU  Kurdyaeva, Y.A.
PY  2026
IS  12
PB  INFRA-M Academic Publishing LLC.