Meteorology
Lowest altitude of the visible cloud layer, reported as base of scattered, broken, overcast.
Quick answer: Lowest altitude of the visible cloud layer, reported as base of scattered, broken, overcast.
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Lowest altitude of the visible cloud layer, reported as base of scattered, broken, overcast.
云底 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.
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Questions and answers
In this glossary, 云底 refers to: Lowest altitude of the visible cloud layer, reported as base of scattered, broken, overcast.
In aviation communication, this term appears in contexts such as: "我们观测到云底约1500英尺，请求下降许可。"
云底 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.
云底 is mainly used by Pilots, Air Traffic Controllers, and Cabin Crew.
In this glossary, 云底 is grouped under Meteorology. Related pages in this category explain adjacent procedures, commands and operational concepts.
This definition is sourced from ICAO Doc 9432, FAA PCG and published by Protermify Aviation as a static aviation reference page.
Lowest altitude of the visible cloud layer, reported as base of scattered, broken, overcast.
Pilot: We observe cloud base at approximately fifteen hundred feet and request descent clearance.
云底
我们观测到云底约1500英尺，请求下降许可。
English reference definition
ICAO Doc 9432, FAA PCG
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