Global analysis for periodic variations in gravity wave squared amplitudes and momentum fluxes in the middle atmosphere

Chen, Dan; Strube, Cornelia; Ern, Manfred; Preusse, Peter; Riese, Martin

doi:https://doi.org/10.5194/angeo-37-487-2019

Articles | Volume 37, issue 4

https://doi.org/10.5194/angeo-37-487-2019

© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/angeo-37-487-2019

© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 37, issue 4

Regular paper

|

02 Jul 2019

Regular paper |

| 02 Jul 2019

Global analysis for periodic variations in gravity wave squared amplitudes and momentum fluxes in the middle atmosphere

Dan Chen, Cornelia Strube, Manfred Ern, Peter Preusse, and Martin Riese

Data sets

GRACILE: A comprehensive climatology of atmospheric gravity wave parameters based on satellite limb soundings, link to data in NetCDF format Manfred Ern, Quang Thai Trinh, Peter Preusse, John C. Gille, Martin G. Mlynczak, James M. Russell III, and Martin Riese https://doi.org/10.1594/PANGAEA.879658

Short summary

In this paper, for the first time, absolute gravity wave momentum flux (GWMF) on temporal scales from terannual variation up to solar cycle length is investigated. The systematic spectral analysis of SABER absolute GWMF is presented and physically interpreted. The various roles of filtering and oblique propagating are discussed, which is likely an important factor for MLT dynamics, and hence can be used as a stringent test bed of the reproduction of such features in global models.