Modulations in the polar mesosphere summer echoes and associated atmospheric gravity waves
- 7 December 1989
- journal article
- Published by American Geophysical Union (AGU) in Geophysical Research Letters
- Vol. 16 (12) , 1437-1440
- https://doi.org/10.1029/gl016i012p01437
Abstract
Mesospheric observations were made by the EISCAT VHF radar. On one occasion a relatively weak Polar Mesosphere Summer Echo (PMSE) was observed with its intensity varying with a period of about 27 minutes. Immediately below the PMSE layer an atmospheric gravity wave was observed, also with a period of about 27 minutes. The maximum intensity of the PMSE corresponded to the maximum upward velocity associated with the wave. Particle precipitation, adiabatic cooling due to the upward velocity and wave steepening and breaking at the mesopause may all play a role in causing PMSEs.This publication has 11 references indexed in Scilit:
- The structure and dynamics of polar mesosphere summer echoes observed with the EISCAT 224 MHz radarGeophysical Research Letters, 1988
- Eiscat vhf radar observations of periodic mesopause echoesPlanetary and Space Science, 1988
- Evidence of heavy positive ions at the summer Arctic mesopause from the EISCAT UHF incoherent scatter radarGeophysical Research Letters, 1988
- First observations of summer polar mesospheric backscatter with a 224 MHz radarGeophysical Research Letters, 1988
- Mesospheric measurements using the EISCAT VHF system : First results and their interpretationGeophysical Research Letters, 1987
- The effect of cluster ions on anomalous VHF backscatter from the summer polar mesosphereGeophysical Research Letters, 1987
- Gen-system—a new experimental philosophy for EISCAT radarsJournal of Atmospheric and Terrestrial Physics, 1986
- VHF parabolic cylinder antenna for incoherent scatter radar researchRadio Science, 1982
- Structure and dynamics of the stratosphere and mesosphere revealed by VHF radar investigationsPure and Applied Geophysics, 1980
- Small-scale variation of convected quantities like temperature in turbulent fluid Part 1. General discussion and the case of small conductivityJournal of Fluid Mechanics, 1959