lee wave


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lee wave

n
(Physical Geography) meteorol a stationary wave sometimes formed in an air stream on the leeward side of a hill or mountain range
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John Beresford and Rob Lee wave to fans during the open-top bus parade with the trophy.
Met Office forecaster Bob Syvret said the unusual formation is a "lee wave", which can be popular with gliders because they can help them to gain altitude or fly long distances.
From the reported drop in air temperature, the NTSB concluded that the Baron was at the western edge of a lee wave cloud, or lenticular, just before dropping from radar.
The DWF event is an intermittent, short-lived wind flow in which the ambient flow over the crater descends inside the crater and rebounds along the crater sidewall, forming a rotor and a lee wave. The colors represent wind speed with the vectors showing wind direction.
The descending isentropes of the lee wave bring warm air down into the crater over the southwestern part, producing large horizontal temperature differences over a short distance between the southwestern part and the undisturbed crater atmosphere farther downstream.
Vosper, 2007: Influence of lee waves on the near-surface flow downwind of the Pennines.
22, 2017, file photo, comic book writer Stan Lee waves to the audience after being introduced onstage at the "Extraordinary: Stan Lee" tribute event at the Saban Theatre in Beverly Hills, Calif.
But again these are based on large-scale patterns and numerical forecast models that do not capture the fine-grained detail of lee waves, rotors, and the exact locations of low-level wind shear.
Non-breaking lee waves can reach above FL450 and wreak havoc on private jets and commercial aircraft.
Hal's master's thesis documented the history of mountain weather studies and early explorations of lee waves by sailplanes.