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Questions and Answers
What is the definition of station altimeter setting?
What is the definition of station altimeter setting?
- Pressure measured at the aircraft's altitude
- Altitude above ground level
- Station pressure reduced to sea level (correct)
- Temperature adjusted to sea level
How does a SYSTEM typically form in the Northern Hemisphere?
How does a SYSTEM typically form in the Northern Hemisphere?
- Using irregular isobars near high pressure
- By converging isobars at low altitudes
- Through divergent isobars in the cold sector
- With parallel isobars in the warm sector (correct)
What is meant by the term 'eye to wheel' in aviation?
What is meant by the term 'eye to wheel' in aviation?
- Height from pilot's eye to the wheel during landing configuration (correct)
- Distance from ground control to the aircraft
- Measurement of aircraft wheelbase
- Length of the runway from the cockpit
Where is the most severe jet stream and CAT expected to occur?
Where is the most severe jet stream and CAT expected to occur?
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Why does fog exist over the ocean but not on land?
Why does fog exist over the ocean but not on land?
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What is the highest pressure gradient at 1027 hecto pascals?
What is the highest pressure gradient at 1027 hecto pascals?
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What can weather radar detect? 
What can weather radar detect? 
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What does the given IFR Outlook contain? 
What does the given IFR Outlook contain? 
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Study Notes
Altimeter Setting
- Altimeter setting refers to the station pressure adjusted to sea level.
Atmospheric Systems in the Northern Hemisphere
- A system forms in the Northern Hemisphere characterized by parallel isobars in the warm sector.
Eye to Wheel Measurement
- The eye to wheel distance is the vertical distance from a pilot's eyes to the landing gear wheels in landing configuration.
Pressure Gradient
- The highest pressure gradient noted is 1027 hPa; however, the critical value is considered to be 1016 hPa.
Weather Radar Detection
- Weather radar is capable of detecting:
- Rain (primary detection capability)
- Dry snow and wet snow are not specifically detectable by standard radar.
Jet Stream and Clear Air Turbulence (CAT)
- The most severe conditions of the jet stream and CAT are typically found on the polar side of the stream.
IFR Outlook Standards
- For Instrument Flight Rules (IFR), the standards include a minimum of 1000 feet altitude and/or 3 statute miles visibility.
Fog Formation Over Oceans
- Fog can form over the ocean due to moist, warm air, which is less likely to occur over land surfaces.
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