定状透镜云 是什么？
定状透镜云 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 “定状透镜云” Used in Practice?
通知所有飞机在机场南侧一二零飞行高度有定状透镜云报告，预计可能有颠簸。
Certification Exam Relevance
Who Needs to Know This Term?
- Pilots
- Air Traffic Controllers
- Cabin Crew
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定状透镜云 是什么？
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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