contributor author | Boucher, Roland J. | |
contributor author | Ottersten, Hans | |
date accessioned | 2017-06-09T17:13:12Z | |
date available | 2017-06-09T17:13:12Z | |
date copyright | 1971/04/01 | |
date issued | 1971 | |
identifier issn | 0021-8952 | |
identifier other | ams-8127.pdf | |
identifier uri | http://onlinelibrary.yabesh.ir/handle/yetl/4224256 | |
description abstract | Sinusoidal variations in the longitudinal speed of the wind in the planetary boundary layer are observed with a C-band multiple-gate Doppler radar using snow as a wind tracer. These undulations in the horizontal wind are believed to be orographically generated wave phenomena. The observed wind structures have average scale lengths of 300 m and their amplitude decreases with altitude. The propagation speeds of the, wind structures have been determined with a spatial correlation technique and have, at times, been found to depart appreciably from the mean ambient wind. Under stable atmospheric conditions the wind structures persist for a considerable period. In one extreme case the structures preserved identifiable characteristics during advection over a distance of 9 km. This remarkable persistence resulted in a Lagrangian-Eulerian time-scale ratio of 45. | |
publisher | American Meteorological Society | |
title | Doppler Radar Observation of Wind Structure in Snow | |
type | Journal Paper | |
journal volume | 10 | |
journal issue | 2 | |
journal title | Journal of Applied Meteorology | |
identifier doi | 10.1175/1520-0450(1971)010<0228:DROOWS>2.0.CO;2 | |
journal fristpage | 228 | |
journal lastpage | 233 | |
tree | Journal of Applied Meteorology:;1971:;volume( 010 ):;issue: 002 | |
contenttype | Fulltext | |