Wind Part 2(oxford), jet streams

Question 1

Isohypses are -

They are referenced to -

Answer 1

Line of equal pressure(contour lines)

MSL

Question 2

In relation to contour charts:

The closer the isohypses -

Answer 2

The stronger the pressure gradient - strong wind

Question 3

The pressure changes that exist in the upper atmosphere that control our upper winds are directly related to the -

Is is called -

Answer 3

temperature differences between air masses

Thermal wind

Question 4

As altitude increases(upper winds) the wind will start to -

Answer 4

blow perpendicular to the isobars

Question 5

Clear air turbulence (TURB) occurs around the boundaries of jet streams because of the large horizontal and vertical -
It is strongest near to, or just ____, the jet axis on the ____ air (low pressure) side with a secondary area above the axis.

Answer 5

windshears.

Clear air turbulence (TURB) occurs around the boundaries of jet streams because of the large horizontal and vertical windshears.
It is strongest near to, or just below, the jet axis on the cold air (low pressure) side with a secondary area above the axis.

Question 6

Regarding jet stream:

Low pressure air mass compared to high pressure air mass, at a given height, will have a -

Answer 6

Higher pressure.

Question 7

The gradient is stronger around a -

Answer 7

High pressure system