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Meteorology

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.

Quick answer: 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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Quick answer

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.

Why it matters

定在性レンズ雲 matters because it supports clear communication in Meteorology contexts for Pilots, Air Traffic Controllers, and Cabin Crew. It also connects to aviation training and exam language such as ICAO Level 4, ICAO Level 5, ICAO Level 6, and EASA FCL.055.

Editorial context

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Questions and answers

Questions and answers

What is 定在性レンズ雲?

In this glossary, 定在性レンズ雲 refers to: 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.

How is 定在性レンズ雲 used in aviation?

In aviation communication, this term appears in contexts such as: "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。"

Why does 定在性レンズ雲 matter in aviation?

定在性レンズ雲 matters because it supports clear communication in Meteorology contexts for Pilots, Air Traffic Controllers, and Cabin Crew. It also connects to aviation training and exam language such as ICAO Level 4, ICAO Level 5, ICAO Level 6, and EASA FCL.055.

Who uses 定在性レンズ雲?

定在性レンズ雲 is mainly used by Pilots, Air Traffic Controllers, and Cabin Crew.

What category does 定在性レンズ雲 belong to?

In this glossary, 定在性レンズ雲 is grouped under Meteorology. Related pages in this category explain adjacent procedures, commands and operational concepts.

Where does this definition come from?

This definition is sourced from ICAO Doc 9432, FAA PCG and published by Protermify Aviation as a static aviation reference page.

Definition

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.

Operational example

Advise all aircraft of a standing lenticular cloud reported at flight level one two zero south of the field; possible turbulence expected.

Localized term

定在性レンズ雲

Localized example

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。

Definition language

English reference definition

Source

ICAO Doc 9432, FAA PCG

Category

Meteorology

Exam relevance

  • ICAO Level 4
  • ICAO Level 5
  • ICAO Level 6
  • EASA FCL.055

Target audience

  • Pilots
  • Air Traffic Controllers
  • Cabin Crew

Related terms

Use the related links below to continue through connected aviation terminology.

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