This title appears in the Scientific Report :
2019
Please use the identifier:
http://dx.doi.org/10.1029/2019GL085934 in citations.
Please use the identifier: http://hdl.handle.net/2128/23786 in citations.
Multilayer Observations and Modeling of Thunderstorm-Generated Gravity Waves Over the Midwestern United States
Multilayer Observations and Modeling of Thunderstorm-Generated Gravity Waves Over the Midwestern United States
We present multilayer observations and numerical simulations of gravity waves (GWs) generated by a series of Mesoscale Convective Systems over the midwestern United States. Strong semi‐concentric GWs were observed and modeled, which couple from their tropospheric sources to the thermosphere, display...
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Personal Name(s): | Heale, C. J. (Corresponding author) |
---|---|
Snively, J. B. / Bhatt, A. N. / Hoffmann, L. / Stephan, C. C. / Kendall, E. A. | |
Contributing Institute: |
Jülich Supercomputing Center; JSC |
Published in: | Geophysical research letters, 46 (2019) 23, S. 14164-14174 |
Imprint: |
Hoboken, NJ
Wiley
2019
|
DOI: |
10.1029/2019GL085934 |
Document Type: |
Journal Article |
Research Program: |
Computational Science and Mathematical Methods |
Link: |
Published on 2019-12-03. Available in OpenAccess from 2020-06-03. Published on 2019-12-03. Available in OpenAccess from 2020-06-03. |
Publikationsportal JuSER |
Please use the identifier: http://hdl.handle.net/2128/23786 in citations.
We present multilayer observations and numerical simulations of gravity waves (GWs) generated by a series of Mesoscale Convective Systems over the midwestern United States. Strong semi‐concentric GWs were observed and modeled, which couple from their tropospheric sources to the thermosphere, displaying strong nonlinearity indicated by instability, breaking, and formation of turbulent vortices. GWs in the stratosphere display a large range of horizontal scales from 34‐400 km, however, the smaller wavelength waves break rapidly in the mesosphere and lower‐thermosphere (MLT). Larger scale (≥150 km) waves dominate in the thermosphere and display northwestward propagation at 200‐300 km altitude, opposing the mean winds. Despite strong molecular viscosity and thermal conductivity in the thermosphere, steepened wave fronts, which may indicate nonlinearity, is identified in 630 nm airglow imagers. The agreement between model and data suggest new opportunities for data‐constrained simulations that span multi‐layer observables, including MLT‐region airglow not captured for this event. |