| contributor author | Porch, William M. |  | 
| contributor author | Clements, William E. |  | 
| contributor author | Coulter, Richard L. |  | 
| date accessioned | 2017-06-09T14:03:24Z |  | 
| date available | 2017-06-09T14:03:24Z |  | 
| date copyright | 1991/02/01 |  | 
| date issued | 1991 |  | 
| identifier issn | 0894-8763 |  | 
| identifier other | ams-11648.pdf |  | 
| identifier uri | http://onlinelibrary.yabesh.ir/handle/yetl/4146899 |  | 
| description abstract | This paper describes a regular oscillation observed in nighttime drainage airflow in a valley under relatively light upper-level wind conditions. The period of these oscillations is about 20 minutes with at least one harmonic at about 10 minutes. A strong coherence between tributary flow and main valley fluctuations was observed, with the phase of the tributary flow leading the valley oscillation; this indicates the importance of tributaries as major contributors to the dynamics of cold air flow in valleys. |  | 
| publisher | American Meteorological Society |  | 
| title | Nighttime Valley Waves |  | 
| type | Journal Paper |  | 
| journal volume | 30 |  | 
| journal issue | 2 |  | 
| journal title | Journal of Applied Meteorology |  | 
| identifier doi | 10.1175/1520-0450(1991)030<0145:NVW>2.0.CO;2 |  | 
| journal fristpage | 145 |  | 
| journal lastpage | 156 |  | 
| tree | Journal of Applied Meteorology:;1991:;volume( 030 ):;issue: 002 |  | 
| contenttype | Fulltext |  |