定在性レンズ雲とは？
定在性レンズ雲 A smooth, lens-shaped cloud that forms at high altitudes in the crest of mountain waves; often stationary, and indicative of significant atmospheric turbulence downwind of mountain ranges.
Source: ICAO Doc 9432, FAA PCG
How is “定在性レンズ雲” Used in Practice?
空港南側の飛行レベル120で定在性レンズ雲が報告されています。乱気流の可能性があります。
Certification Exam Relevance
Who Needs to Know This Term?
- Pilots
- Air Traffic Controllers
- Cabin Crew
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定在性レンズ雲とは？
A smooth, lens-shaped cloud that forms at high altitudes in the crest of mountain waves; often stationary, and indicative of significant atmospheric turbulence downwind of mountain ranges.
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