A mountain ridge model for quantifying oblique mountain wave propagation and distribution

Rhode, Sebastian; Preusse, Peter; Ern, Manfred; Ungermann, Jörn; Krasauskas, Lukas; Bacmeister, Julio; Riese, Martin

doi:https://doi.org/10.5194/acp-23-7901-2023

Articles | Volume 23, issue 14

https://doi.org/10.5194/acp-23-7901-2023

© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/acp-23-7901-2023

© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 23, issue 14

Research article

|

18 Jul 2023

Research article |

| 18 Jul 2023

A mountain ridge model for quantifying oblique mountain wave propagation and distribution

Sebastian Rhode, Peter Preusse, Manfred Ern, Jörn Ungermann, Lukas Krasauskas, Julio Bacmeister, and Martin Riese

Data sets

The HIRDLS Level 2 product NASA Goddard Earth Sciences Data and Information Services Center https://acdisc.gesdisc.eosdis.nasa.gov/data/Aura_HIRDLS_Level2/

Complete ERA5 from 1940: Fifth generation of ECMWF atmospheric reanalyses of the global climate H. Hersbach, B. Bell, P. Berrisford, S. Hirahara, A. Horányi, J. Muñoz‐Sabater, J. Nicolas, C. Peubey, R. Radu, D. Schepers, A. Simmons, C. Soci, S. Abdalla, X. Abellan, G. Balsamo, P. Bechtold, G. Biavati, J. Bidlot, M. Bonavita, G. De Chiara, P. Dahlgren, D. Dee, M. Diamantakis, R. Dragani, J. Flemming, R. Forbes, M. Fuentes, A. Geer, L. Haimberger, S. Healy, R. J., Hogan, E. Hólm, M. Janisková, S. Keeley, P. Laloyaux, P. Lopez, C. Lupu, G. Radnoti, P. de Rosnay, I. Rozum, F. Vamborg, S. Villaume, and J.-N. Thépaut https://doi.org/10.24381/cds.143582cf

ETOPO1 1 Arc-Minute Global Relief Model NOAA National Geophysical Data Center https://www.ncei.noaa.gov/access/metadata/landing-page/bin/iso?id=gov.noaa.ngdc.mgg.dem:316

Short summary

Gravity waves (GWs) transport energy vertically and horizontally within the atmosphere and thereby affect wind speeds far from their sources. Here, we present a model that identifies orographic GW sources and predicts the pathways of the excited GWs through the atmosphere for a better understanding of horizontal GW propagation. We use this model to explain physical patterns in satellite observations (e.g., low GW activity above the Himalaya) and predict seasonal patterns of GW propagation.