机译:Coherent seasonal, annual, and quasi-biennial variations in ionospheric tidal/SPW amplitudes
Natl Cent Univ, Inst Space Sci, Taoyuan, Taiwan;
Hampton Univ, Ctr Atmospher Sci, Hampton, VA 23668 USA;
Univ Maryland, Earth Syst Sci Interdisciplinary Ctr, College Pk, MD 20742 USA;
ionosphere; QBO; tides; planetary waves; Hilbert-Huang transform; MEEMD; EMPIRICAL MODE DECOMPOSITION; PLANETARY WAVE; TIME-SERIES; SCALE WAVES; OSCILLATION; VARIABILITY; TIDES; TEC;