Abstract
A case study of wave motion above a jet stream flow system observed by an instrumented balloon
Highlights
Gravity waves are commonly observed in the atmosphere and their importance has been emphasized during the last decade
The experimental study of atmospheric waves can be carried out by using instrumented aircratl (Lilly and Kennedy, 1973), UHF-VHF radars (Ruster et al, 1978), LIDAR (Chanin and Hauchecome, 1981) or constant level balloons (Massman, 1981). The ability of these methods to obtain measurements in the middle stratosphere is limited to large amplitude waves and the observations remain sparse in the 20-35 km altitude range
One of the objectives of the 1980test flight of the helisonde was to investigate the ability of the instrument to detect gravity waves in a broad altitude range, especially in the middle stratosphere where in situ measurements are sparse
Summary
Gravity waves are commonly observed in the atmosphere and their importance has been emphasized during the last decade. The experimental study of atmospheric waves can be carried out by using instrumented aircratl (Lilly and Kennedy, 1973), UHF-VHF radars (Ruster et al, 1978), LIDAR (Chanin and Hauchecome, 1981) or constant level balloons (Massman, 1981). The ability of these methods to obtain measurements in the middle stratosphere is limited to large amplitude waves and the observations remain sparse in the 20-35 km altitude range.
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