New Test 5 Flashcards
1
Q
What is windshear?
A
Change in wind speed and/or direction over some distance
2
Q
What is convective wind shear?
A
Results from convective clouds
3
Q
What is nonconvective windshear?
A
not associated with convective clouds
4
Q
What is low-level windshear?
A
Wind Shear That Occurs Below 2,000 ft AGL Along The Final Approach or Departure Corridor
Large change in short distance
Hazardous
5
Q
What is different types of wind shear?
A
Direction Speed Vertical Horizontal Shear Gradient
6
Q
What is severe wind shear?
A
change IAS > 15 kts
change VSI > 500 fpm
7
Q
What are causes of windshear?
A
Temperature inversions, surface friction, fronts
8
Q
What is nocturnal radiation inversion?
A
Night
– Infrared Radiation Loss
– Surface Cooling
aloft air changes
