WX 201 Exam 2 || Acknowledged Answers 100%.
What are constant pressure surfaces? correct answers Constant pressure at all points
In regard to constant pressure surfaces, where do higher heights form? correct answers Over
warm air
In regard to constant pressure surfaces, what do high heights correspond to region wise? correct
answers Regions of high pressure
In regard to constant pressure surfaces, what will happen to the wind if the height gradient gets
stronger? correct answers Wind will get stronger
What height on the standard atmosphere relates to the common pressure level of 200mb? correct
answers 39,000ft
What height on the standard atmosphere relates to the common pressure level of 250mb? correct
answers 34,500ft
What height on the standard atmosphere relates to the common pressure level of 300mb? correct
answers 30,000ft
What height on the standard atmosphere relates to the common pressure level of 500mb? correct
answers 18,000ft
What height on the standard atmosphere relates to the common pressure level of 700mb? correct
answers 10,000ft
What height on the standard atmosphere relates to the common pressure level of 850mb? correct
answers 5,000ft
,How do heights on a constant pressure surface correspond to pressure features? correct answers
By contour lines
How are the necessary data (i.e. pressure, wind, temperature, and humidity with height) obtained
for creating constant pressure charts? How often are the data obtained, and at what times daily?
correct answers Obtained by Radiosonde Balloon launches, which are launched daily, twice a
day, at 00 and 12Z.
How do you convert from UTC to MST? correct answers Subtract 7 from the utc time to get your
mst time
What are the six causes of vertical motion in the atmosphere? correct answers 1. Orography
(topography)
2. Fronts
3. Convection
4. Convergence/Divergence
5. Wave motion
6. Turbulence
What is convergence? correct answers Occurs when there is more outflow from than inflow to a
region
What is divergence? correct answers Occurs when there is more outflow from than inflow to a
region
What type of pressure change does convergence lead to? correct answers An increase
What type of pressure change does divergence lead to? correct answers A decrease
, What is Orographic (topographic) lifting? correct answers Consists of upstream lifting, upslope
lifting, Lee Lifting, and convergence
What is upstream lifting? correct answers Caused by convergence upstream from mountains
What is upslope lifting? correct answers Caused by air being forced up a mountain slope
What is lee lifting? correct answers Caused by convergence on the downwind side
What are fronts? correct answers A surface boundary between two air masses that results in
warm air rising
What is convection? correct answers Caused by buoyancy, a lifting force proportional to
differences in air density. Occurs in unstable air. Rising air in warm plumes (bubbles) called
thermals. Thunderstorms form when humid and unstable enough
What are wave motions? correct answers Are observed downwind from mountains or
thunderstorm systems. Called gravity waves, lee waves, and mountain waves
What is turbulence? correct answers Overturning air motions
What are different types of turbulence? correct answers Mechanical Turbulence, Mountain Wave
Turbulence, Thermal Turbulence, Turbulence near thunderstorms, and Clear-air turbulence.
What is Clear-Air Turbulence? correct answers Above and below jet streams
What is Mechanical Turbulence? correct answers On windy days, over rough terrain
What is thermal turbulence? correct answers From unstable air near ground
What are constant pressure surfaces? correct answers Constant pressure at all points
In regard to constant pressure surfaces, where do higher heights form? correct answers Over
warm air
In regard to constant pressure surfaces, what do high heights correspond to region wise? correct
answers Regions of high pressure
In regard to constant pressure surfaces, what will happen to the wind if the height gradient gets
stronger? correct answers Wind will get stronger
What height on the standard atmosphere relates to the common pressure level of 200mb? correct
answers 39,000ft
What height on the standard atmosphere relates to the common pressure level of 250mb? correct
answers 34,500ft
What height on the standard atmosphere relates to the common pressure level of 300mb? correct
answers 30,000ft
What height on the standard atmosphere relates to the common pressure level of 500mb? correct
answers 18,000ft
What height on the standard atmosphere relates to the common pressure level of 700mb? correct
answers 10,000ft
What height on the standard atmosphere relates to the common pressure level of 850mb? correct
answers 5,000ft
,How do heights on a constant pressure surface correspond to pressure features? correct answers
By contour lines
How are the necessary data (i.e. pressure, wind, temperature, and humidity with height) obtained
for creating constant pressure charts? How often are the data obtained, and at what times daily?
correct answers Obtained by Radiosonde Balloon launches, which are launched daily, twice a
day, at 00 and 12Z.
How do you convert from UTC to MST? correct answers Subtract 7 from the utc time to get your
mst time
What are the six causes of vertical motion in the atmosphere? correct answers 1. Orography
(topography)
2. Fronts
3. Convection
4. Convergence/Divergence
5. Wave motion
6. Turbulence
What is convergence? correct answers Occurs when there is more outflow from than inflow to a
region
What is divergence? correct answers Occurs when there is more outflow from than inflow to a
region
What type of pressure change does convergence lead to? correct answers An increase
What type of pressure change does divergence lead to? correct answers A decrease
, What is Orographic (topographic) lifting? correct answers Consists of upstream lifting, upslope
lifting, Lee Lifting, and convergence
What is upstream lifting? correct answers Caused by convergence upstream from mountains
What is upslope lifting? correct answers Caused by air being forced up a mountain slope
What is lee lifting? correct answers Caused by convergence on the downwind side
What are fronts? correct answers A surface boundary between two air masses that results in
warm air rising
What is convection? correct answers Caused by buoyancy, a lifting force proportional to
differences in air density. Occurs in unstable air. Rising air in warm plumes (bubbles) called
thermals. Thunderstorms form when humid and unstable enough
What are wave motions? correct answers Are observed downwind from mountains or
thunderstorm systems. Called gravity waves, lee waves, and mountain waves
What is turbulence? correct answers Overturning air motions
What are different types of turbulence? correct answers Mechanical Turbulence, Mountain Wave
Turbulence, Thermal Turbulence, Turbulence near thunderstorms, and Clear-air turbulence.
What is Clear-Air Turbulence? correct answers Above and below jet streams
What is Mechanical Turbulence? correct answers On windy days, over rough terrain
What is thermal turbulence? correct answers From unstable air near ground
