发表文章:Li, H. Y., C. M. Huang, S. D. Zhang, K. M. Huang, Y. Zhang, Y. Gong, Q. Gan, and Y. Jia (2016), Low-frequency oscillations of the gravity wave energy density in the lower atmosphere at low latitudes revealed by U.S. radiosonde data, J. Geophys. Res. Atmos., 121, doi:10.1002/2016JD025435.