Abstract
Measurements with the Aberystwyth VHF radar have revealed a striking illustration of gravity wave generation and breaking in the lowermost stratosphere. Horizontal wind measurements show an inertia-gravity wave that was essentially monochromatic and persisted for longer than 5 days, with a maximum perturbation amplitude of approximately 10 ms-1. Radiosonde measurements show that this wave induced shear instability that led to intense turbulence close to the tropopause. The event was associated with a highly curved jet stream over Europe, suggesting that geostrophic adjustment was a likely source mechanism. Copyright 2001 by the American Geophysical Union.
| Original language | English |
|---|---|
| Article number | 2000JD900480 |
| Pages (from-to) | 5173-5179 |
| Number of pages | 6 |
| Journal | Journal of Geophysical Research: Atmospheres |
| Volume | 106 |
| Issue number | 6 |
| DOIs | |
| Publication status | Published - 27 Mar 2001 |