| contributor author | Durran, Dale R. | |
| contributor author | Menchaca, Maximo Q. | |
| date accessioned | 2019-09-22T09:03:38Z | |
| date available | 2019-09-22T09:03:38Z | |
| date copyright | 1/16/2019 12:00:00 AM | |
| date issued | 2019 | |
| identifier other | JAS-D-18-0231.1.pdf | |
| identifier uri | http://yetl.yabesh.ir/yetl1/handle/yetl/4262623 | |
| description abstract | The influence of vertical shear on the evolution of mountain-wave momentum fluxes in time-varying cross-mountain flows is investigated by numerical simulation and analyzed using ray tracing and the WKB approximation. The previously documented tendency of momentum fluxes to be strongest during periods of large-scale cross-mountain flow acceleration can be eliminated when the cross-mountain wind increases strongly with height. In particular, the wave packet accumulation mechanism responsible for the enhancement of the momentum flux during periods of cross-mountain flow acceleration is eliminated by the tendency of the vertical group velocity to increase with height in a mean flow with strong forward shear, thereby promoting vertical separation rather than concentration of vertically propagating wave packets. | |
| publisher | American Meteorological Society | |
| title | The Influence of Vertical Wind Shear on the Evolution of Mountain-Wave Momentum Flux | |
| type | Journal Paper | |
| journal volume | 76 | |
| journal issue | 3 | |
| journal title | Journal of the Atmospheric Sciences | |
| identifier doi | 10.1175/JAS-D-18-0231.1 | |
| journal fristpage | 749 | |
| journal lastpage | 756 | |
| tree | Journal of the Atmospheric Sciences:;2019:;volume 076:;issue 003 | |
| contenttype | Fulltext | |
