#1. The arbitrary lower limit of jet core velocity has been assigned by WMO as
WMO defines the minimum jet core velocity as 60 kt.
#2. Jet stream has
Jet streams may have one or more maxima of wind speed.
#3. The vertical wind shear in Jet stream is about
Vertical wind shear is around 6 m/s per km in a jet stream.
#4. Compared to horizontal wind shear the vertical wind shear in a Jet stream is
Vertical wind shear is stronger than horizontal shear in a jet stream.
#5. In a jet stream, the path of the maximum speed is known as
The axis marks the line of maximum wind in the jet stream.
#6. The wind speed along the axis of a jet stream is always
Wind speed varies along the axis due to jet streaks.
#7. Along the axis of a jet stream there are centres of high speed winds, these are called
High-speed centers along the jet are called jet streaks.
#8. In a wavy jet the Jet streaks are located over or near the
Jet streaks usually appear between trough and ridge.
#9. Sub-tropical Jet stream (STJ) is
STJ is a westerly jet.
#10. The normal position of Sub-tropical Jet Stream is
Normal STJ latitude is around 30°N.
#11. The southern most position of STJ is February is
In February, STJ can reach as far south as 22°N.
#12. The STJ affects India from
STJ influences India from October to May.
#13. STJ has a layered structure. There are often two layers of max wind to the ____ of jet core
Two layers of maximum wind often occur to the North of the core.
#14. The STJ strengthens
STJ typically strengthens upstream of the jet streaks.
#15. At and near the STJ the temperature gradient is very
Strong temperature gradient exists near the jet stream.
#16. Vertical wind shear in STJ is greater ______ the core
Vertical shear is greater above the jet core.
#17. The TJ prevails over the Indian Peninsula from
Tropical Jet affects India mainly from May to June.
#18. The TJ is located over the Indian Peninsula, approximately at
Tropical Jet over India is around 17°N latitude.
#19. The TJ is located over Indian, approximately at a height of
Tropical Jet is at ~11-12 km height.
#20. The TJ is strongest in
Maximum TJ strength occurs in July-August.
#21. In the TJ the wind shears are much _____ than the STJ
Wind shears in TJ are stronger than in STJ.
#22. TJ is
Tropical Jet is westerly.
#23. A jet stream can be recognized by
Lenticular clouds indicate strong upper winds of a jet stream.
#24. Flying at right angles to a jet stream with falling pressure you will experience
Crossing a jet with falling pressure results in increasing tailwind.
#25. When and where tropical jet stream occurs
Tropical Jet occurs in summers over SE Asia and Central Africa.
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