Articles | Volume 21, issue 13
Atmos. Chem. Phys., 21, 10393–10412, 2021
https://doi.org/10.5194/acp-21-10393-2021
Atmos. Chem. Phys., 21, 10393–10412, 2021
https://doi.org/10.5194/acp-21-10393-2021
Research article
 | Highlight paper
09 Jul 2021
Research article  | Highlight paper | 09 Jul 2021

Orographically induced spontaneous imbalance within the jet causing a large-scale gravity wave event

Markus Geldenhuys et al.

Related authors

The Mission Support System (MSS v7.0.4) and its use in planning for the SouthTRAC aircraft campaign
Reimar Bauer, Jens-Uwe Grooß, Jörn Ungermann, May Bär, Markus Geldenhuys, and Lars Hoffmann
Geosci. Model Dev., 15, 8983–8997, https://doi.org/10.5194/gmd-15-8983-2022,https://doi.org/10.5194/gmd-15-8983-2022, 2022
Short summary

Related subject area

Subject: Dynamics | Research Activity: Field Measurements | Altitude Range: Troposphere | Science Focus: Physics (physical properties and processes)
A change in the relation between the Subtropical Indian Ocean Dipole and the South Atlantic Ocean Dipole indices in the past four decades
Lejiang Yu, Shiyuan Zhong, Timo Vihma, Cuijuan Sui, and Bo Sun
Atmos. Chem. Phys., 23, 345–353, https://doi.org/10.5194/acp-23-345-2023,https://doi.org/10.5194/acp-23-345-2023, 2023
Short summary
Characterising the dynamic movement of thunderstorms using very low- and low-frequency (VLF/LF) total lightning data over the Pearl River Delta region
Si Cheng, Jianguo Wang, Li Cai, Mi Zhou, Rui Su, Yijun Huang, and Quanxin Li
Atmos. Chem. Phys., 22, 10045–10059, https://doi.org/10.5194/acp-22-10045-2022,https://doi.org/10.5194/acp-22-10045-2022, 2022
Short summary
Evolution of turbulent kinetic energy during the entire sandstorm process
Hongyou Liu, Yanxiong Shi, and Xiaojing Zheng
Atmos. Chem. Phys., 22, 8787–8803, https://doi.org/10.5194/acp-22-8787-2022,https://doi.org/10.5194/acp-22-8787-2022, 2022
Short summary
Seasonal updraft speeds change cloud droplet number concentrations in low-level clouds over the western North Atlantic
Simon Kirschler, Christiane Voigt, Bruce Anderson, Ramon Campos Braga, Gao Chen, Andrea F. Corral, Ewan Crosbie, Hossein Dadashazar, Richard A. Ferrare, Valerian Hahn, Johannes Hendricks, Stefan Kaufmann, Richard Moore, Mira L. Pöhlker, Claire Robinson, Amy J. Scarino, Dominik Schollmayer, Michael A. Shook, K. Lee Thornhill, Edward Winstead, Luke D. Ziemba, and Armin Sorooshian
Atmos. Chem. Phys., 22, 8299–8319, https://doi.org/10.5194/acp-22-8299-2022,https://doi.org/10.5194/acp-22-8299-2022, 2022
Short summary
The effect of ice supersaturation and thin cirrus on lapse rates in the upper troposphere
Klaus Gierens, Lena Wilhelm, Sina Hofer, and Susanne Rohs
Atmos. Chem. Phys., 22, 7699–7712, https://doi.org/10.5194/acp-22-7699-2022,https://doi.org/10.5194/acp-22-7699-2022, 2022
Short summary

Cited articles

Alexander, M. J. and Pfister, L.: Gravity wave momentum flux in the lower stratosphere over convection, Geophys. Res. Lett., 22, 2029–2032, https://doi.org/10.1029/95GL01984, 1995. a
Alexander, M. J., Geller, M., McLandress, C., Polavarapu, S., Preusse, P., Sassi, F., Sato, K., Eckermann, S., Ern, M., Hertzog, A., Kawatani, Y., Pulido, M., Shaw, T. A., Sigmond, M., Vincent, R., and Watanabe, S.: Recent developments in gravity-wave effects in climate models and the global distribution of gravity-wave momentum flux from observations and models, Q. J. Roy. Meteor. Soc., 136, 1103–1124, https://doi.org/10.1002/qj.637, 2010. a
Amemiya, A. and Sato, K.: A New Gravity Wave Parameterization Including Three-Dimensional Propagation, J. Meteorol. Soc. Jpn. Ser. II, 94, 237–256, https://doi.org/10.2151/jmsj.2016-013, 2016. a
Andrews, D. G., Holton, J. R., and Leovy, C. B.: Middle Atmosphere Dynamics, vol. 40, International Geophysics Series, Academic Press, 1987. a
Bacmeister, J. T., Newman, P. A., Gary, B. L., and Chan, K. R.: An algorithm for forecasting mountain wave-related turbulence in the stratosphere, Weather Forecast., 9, 241–253, https://doi.org/10.1175/1520-0434(1994)009<0241:AAFFMW>2.0.CO;2, 1994. a
Download
Short summary
A large-scale gravity wave (GW) was observed spanning the whole of Greenland. The GWs proposed in this paper come from a new jet–topography mechanism. The topography compresses the flow and triggers a change in u- and v-wind components. The jet becomes out of geostrophic balance and sheds energy in the form of GWs to restore the balance. This topography–jet interaction was not previously considered by the community, rendering the impact of the gravity waves largely unaccounted for.
Altmetrics
Final-revised paper
Preprint