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The gravity wave response above deep convection in a squall line simulation
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Holton, J. R. Alexander, M. J. Durran, D. R. |
| Copyright Year | 1995 |
| Description | High-frequency gravity waves generated by convective storms likely play an important role in the general circulation of the middle atmosphere. Yet little is known about waves from this source. This work utilizes a fully compressible, nonlinear, numerical, two-dimensional simulation of a midlatitude squall line to study vertically propagating waves generated by deep convection. The model includes a deep stratosphere layer with high enough resolution to characterize the wave motions at these altitudes. A spectral analysis of the stratospheric waves provides an understanding of the necessary characteristics of the spectrum for future studies of their effects on the middle atmosphere in realistic mean wind scenarios. The wave spectrum also displays specific characteristics that point to the physical mechanisms within the storm responsible for their forcing. Understanding these forcing mechanisms and the properties of the storm and atmosphere that control them are crucial first steps toward developing a parameterization of waves from this source. The simulation also provides a description of some observable signatures of convectively generated waves, which may promote observational verification of these results and help tie any such observations to their convective source. |
| File Size | 1579392 |
| Page Count | 16 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19960048434 |
| Archival Resource Key | ark:/13960/t75t8k25x |
| Language | English |
| Publisher Date | 1995-06-15 |
| Access Restriction | Open |
| Subject Keyword | Meteorology And Climatology High Resolution Display Devices Two Dimensional Models Stratosphere Temperate Regions Parameterization Convection Storms Middle Atmosphere Spectrum Analysis Observation Signatures Squalls Gravity Waves Altitude Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
