wind shear
Low-Frequency TechnicalTechnical / Journalistic
Definition
Meaning
A sudden, violent change in wind speed and/or direction over a short distance.
A meteorological phenomenon that poses a significant hazard to aviation, particularly during take-off and landing, and can influence storm development.
Linguistics
Semantic Notes
In common usage, the term is almost exclusively used in the context of aviation safety or meteorology. It is a compound noun treated as singular.
Dialectal Variation
British vs American Usage
Differences
No significant differences in definition or spelling. Both use the compound noun.
Connotations
Identical strong connotations of danger, particularly in aviation.
Frequency
Equally low-frequency in general use but equally high-frequency in aviation and meteorological contexts in both regions.
Vocabulary
Collocations
Grammar
Valency Patterns
pilot + verb (encountered/experienced) + wind shearsystem + verb (detected/alerted for) + wind shearwind shear + verb (caused + incident)Vocabulary
Synonyms
Strong
Neutral
Weak
Vocabulary
Antonyms
Phrases
Idioms & Phrases
- “Shear terror (playful journalistic pun)”
Usage
Context Usage
Business
Used in airline industry reports on safety incidents.
Academic
Core concept in meteorology and aerospace engineering papers.
Everyday
Rare; mostly heard in news reports about plane incidents.
Technical
Standard term in aviation manuals, weather radar systems, and pilot briefings.
Examples
By Part of Speech
verb
British English
- The aircraft was wind-sheared during its final approach.
- The storm began to wind-shear the cloud tops.
American English
- The plane wind-sheared violently before the pilot recovered.
- Thunderstorms can wind-shear the upper-level winds.
Examples
By CEFR Level
- Wind shear is dangerous for planes.
- The pilot warned about possible wind shear near the mountains.
- Wind shear can make a flight very bumpy.
- The aviation authority issued a warning for severe low-level wind shear at the airport.
- Modern aircraft are equipped with systems to detect wind shear automatically.
- Meteorologists analysed the radar data to pinpoint the microburst that caused the catastrophic wind shear event.
- The study focused on the climatology of wind shear phenomena in tropical coastal regions.
Learning
Memory Aids
Mnemonic
Imagine a plane flying through a 'shear' (like scissors) of wind that violently cuts its lift.
Conceptual Metaphor
WIND IS A SOLID OBSTACLE THAT CAN SHEAR/LIQUID WITH CURRENT
Watch out
Common Pitfalls
Translation Traps (for Russian speakers)
- Avoid translating as "ветер сдвиг" – use the established calque "сдвиг ветра" or the direct borrowing "винд-шир" in technical contexts.
- Do not confuse with general "турбулентность" (turbulence), which is broader.
Common Mistakes
- Misspelling as 'windshear' (often accepted but technically two words).
- Using it to describe general bumpy air (turbulence).
- Incorrect pronunciation of 'shear' as 'sheer' (though they are homophones in AmE).
Practice
Quiz
Wind shear is most hazardous to aviation during which phases of flight?
FAQ
Frequently Asked Questions
Wind shear is a specific, sudden change in wind speed/direction. Turbulence is a broader term for irregular, disturbed air motion, which can be caused by wind shear but also by other factors like thermals or mountains.
Yes, to some extent. Modern Doppler radar and atmospheric models can detect conditions conducive to wind shear (like thunderstorms) and provide warnings, but sudden, low-level shear remains particularly dangerous.
Primarily, yes, due to the immediate danger. However, it also affects the structure and intensity of storms and can cause damage to tall structures on the ground.
Standard procedure, depending on the aircraft type and phase of flight, often involves applying maximum recommended power and following a specific pitch attitude to escape the shear condition, as outlined in their specific wind shear recovery technique.