短期趋势预报（TREND） 是什么？
短期趋势预报（TREND） A TREND appended to a METAR or SPECI giving expected significant changes in surface wind, visibility, weather or cloud over the next two hours.
Source: ICAO Doc 9432, FAA PCG
How is “短期趋势预报（TREND）” Used in Practice?
空管：最新 METAR 与 TREND 表明能见度将在两小时内提升至 6000 米，云底抬升至 1500 英尺以上。
Certification Exam Relevance
Who Needs to Know This Term?
- Pilots
- Air Traffic Controllers
- Cabin Crew
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短期趋势预报（TREND） 是什么？
A TREND appended to a METAR or SPECI giving expected significant changes in surface wind, visibility, weather or cloud over the next two hours.
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