Short-Wave Signatures of Stratospheric Mountain Wave Breaking

Wave breaking in the short-pulse equation

Sufficient conditions for wave breaking are found for the short-pulse equation describing wave packets of few cycles on the ultra-short pulse scale. The analysis relies on the method of characteristics and conserved quantities of the short-pulse equation and holds both on an infinite line and in a periodic domain. Numerical illustrations of the finite-time wave breaking are given in a periodic ...

Mountain wave PSCs

Liquid particle composition and heterogeneous reactions in a mountain wave Polar Stratospheric Cloud D. Lowe, A. R. MacKenzie, H. Schlager, C. Voigt, A. Dörnbrack, M. J. Mahoney, and F. Cairo Environmental Science Dept., Lancaster University, Lancaster, UK Institute for Atmospheric Physics, DLR, Oberpfaffenhofen, Germany Jet Propulsion Laboratory, California Institute of Technology, Pasadena, C...

Ion wave breaking acceleration

B. Liu, J. Meyer-ter-Vehn, K-U. Bamberg, W. J. Ma, J. Liu, X. T. He, X. Q. Yan, and H. Ruhl Institute for Computational and Plasma Physics, Ludwig-Maximilian-Universitaet, 80333 Muenchen, Germany Key Laboratory of HEDP of the Ministry of Education, CAPT, and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China Institute of Applied Physics and Computat...

Breaking Wave Velocity Estimation

The Evolution of a Stratospheric Wave Packet

This work examines the extent to which a few basic concepts that apply to plane waves, for example, the refraction of waves up the gradient of the index of refraction, apply to stratospheric planetary waves. This is done by studying the relation between group velocity (Cg) and the wave activity velocity, which is defined as the Eliassen–Palm flux divided by the wave activity density (Va 5 F/A)....