NIFE WEATHER 200+QUESTIONS WITH CORRECT AND VERIFIED
ANSWERS GRADED A+
What are the percentages of gases in pure, dry air? -
Answer-78% nitrogen 21% oxygen
1% other gases
What percent is water vapor in the atmosphere? -
Answer-0-5% by volume
What is the troposphere? -
Answer-Layer adjacent to the Earth's surface
Where does all weather occur? -
Answer-Troposphere
In the troposhpere, what happens to the temperature with an increase in altitude?
-
Answer-Temperature decreases
What are the winds like in the troposphere? -
Answer-Winds are light near the Earths surface and increase with altitude
Where is the troposphere? (height) -
Answer-Average height of 36000 MSL
What is the moisture content in the troposphere? -
Answer-Large amounts of moisture and condensation
Is the troposphere higher in the summer or in the winter? -
Answer-Higher in the summer. Think that the air is heating up and rising the troposphere
What is the tropopause? -
Answer-Transition zone between the troposphere and stratosphere
What happens to temperature with an increase in altitude in the tropopause?
Decrease?
-
Answer-Constant
Constant
Where do the strongest winds occur? -
Answer-In the tropopause
What is atmospheric pressure? What is atmospheric pressure also known as? -
Answer-Pressure exerted on a surface by the atmosphere due to the weight of the column
of air directly above that surface
,As altitude increases, what happens to pressure? -
Answer-Decreases always
What are the two standard units of pressure? -
Answer-Inches of mercury (in-Hg) Millibars (mb)
, What is station pressure? -
Answer-Atmospheric pressure measured directly at an airfield
Which is greater, station pressure or sea level pressure? -
Answer-Station pressure. stations wont be in the sea
What is Sea Level Pressure? -
Answer-Pressure that would be measured if the station was at MSL
How do stations report pressure regardless of location? -
Answer-In Sea Level Pressure
What is Atmospheric circulation? -
Answer-Earth is constantly heated and cooled as it rotates. This causes ascending and
descending air
What are the two ways atmospheric circulation moves air? -
Answer-Ascending and descending currents
What causes Atmospheric circulation? -
Answer-Wind trying to go from high pressure to low pressure. Due to the Coriolis Force
What are Pressure Gradients? -
Answer-Spacing of isobars that represent a change in pressure over a horizontal
distance.
When is a Pressure Gradient Force (PGF) strong? -
Answer-When isobars are close together
What is the initiating force for all winds? -
Answer-Pressure Gradient Force
What pressure gradient force is associated with slower winds? -
Answer-Wide spaced PGF
What is standard atmosphere? -
Answer-Standard day at sea level conditions
29.92 in-Hg
15 C
What is Lapse rate? -
Answer-Decrease in atmospheric temperature with increasing altitude
What is the average temperature lapse rate? -
Answer-2C/1000ft
ANSWERS GRADED A+
What are the percentages of gases in pure, dry air? -
Answer-78% nitrogen 21% oxygen
1% other gases
What percent is water vapor in the atmosphere? -
Answer-0-5% by volume
What is the troposphere? -
Answer-Layer adjacent to the Earth's surface
Where does all weather occur? -
Answer-Troposphere
In the troposhpere, what happens to the temperature with an increase in altitude?
-
Answer-Temperature decreases
What are the winds like in the troposphere? -
Answer-Winds are light near the Earths surface and increase with altitude
Where is the troposphere? (height) -
Answer-Average height of 36000 MSL
What is the moisture content in the troposphere? -
Answer-Large amounts of moisture and condensation
Is the troposphere higher in the summer or in the winter? -
Answer-Higher in the summer. Think that the air is heating up and rising the troposphere
What is the tropopause? -
Answer-Transition zone between the troposphere and stratosphere
What happens to temperature with an increase in altitude in the tropopause?
Decrease?
-
Answer-Constant
Constant
Where do the strongest winds occur? -
Answer-In the tropopause
What is atmospheric pressure? What is atmospheric pressure also known as? -
Answer-Pressure exerted on a surface by the atmosphere due to the weight of the column
of air directly above that surface
,As altitude increases, what happens to pressure? -
Answer-Decreases always
What are the two standard units of pressure? -
Answer-Inches of mercury (in-Hg) Millibars (mb)
, What is station pressure? -
Answer-Atmospheric pressure measured directly at an airfield
Which is greater, station pressure or sea level pressure? -
Answer-Station pressure. stations wont be in the sea
What is Sea Level Pressure? -
Answer-Pressure that would be measured if the station was at MSL
How do stations report pressure regardless of location? -
Answer-In Sea Level Pressure
What is Atmospheric circulation? -
Answer-Earth is constantly heated and cooled as it rotates. This causes ascending and
descending air
What are the two ways atmospheric circulation moves air? -
Answer-Ascending and descending currents
What causes Atmospheric circulation? -
Answer-Wind trying to go from high pressure to low pressure. Due to the Coriolis Force
What are Pressure Gradients? -
Answer-Spacing of isobars that represent a change in pressure over a horizontal
distance.
When is a Pressure Gradient Force (PGF) strong? -
Answer-When isobars are close together
What is the initiating force for all winds? -
Answer-Pressure Gradient Force
What pressure gradient force is associated with slower winds? -
Answer-Wide spaced PGF
What is standard atmosphere? -
Answer-Standard day at sea level conditions
29.92 in-Hg
15 C
What is Lapse rate? -
Answer-Decrease in atmospheric temperature with increasing altitude
What is the average temperature lapse rate? -
Answer-2C/1000ft
