Met - The Atmosphere Flashcards
Which layer of the atmosphere absorbs the incoming radiation from the sun …..
the ozone layer
The isothermal layer has a ….. temperature
constant
The layer of atmosphere in which most convection takes place is the …..
troposphere
The belt of high pressure that appears over the Australian continent during the winter months is called …..
the sub tropical ridge
the monsoonal trough features extensive cloud and weather because …..
it is in a region where converging airstreams ruse over warm ocean due to the intensity of solar radiation
Mid-latitude cell = high/low pressure
high
beyond the ozone layer the temperature …..
reduces
The tropopause varies in height from ….. at the equator to ….. at the poles
18km at the equator and 8km at the poles
Polar cell = high/low pressure
low
The ozone layer is almost as ….. as the surface
warm
Temperature drops by ….. degrees per ….. feet
20 every 1000ft
When compared with the size of the earth, the troposphere is very thick/thin
thin
What clouds can penetrate beyond the tropopause …..
TCU and CB only
The ITCZ is …..
the region where the surface air flow from each hemisphere converges and rises
There is very little convection in the stratosphere becuase …..
the air at the top of the layer is warmer than the air at the bottom
The sub polar low occurs between …..
the polar cell and the mid-latitude cell
Draw the vertical movement of air with your minds eye
Tropical Cell
Mid-Latitude Cell
Polar Cell
Almost all of the convective wx occurs in the …..
Troposphere
The height of the tropopause varies with …..
latitude
Vertical movement of air:
Falling air ….. as it sinks and therefore tends to be …..
warms, free of wx
In rising air surface pressure …..
falls
The stratosphere is the region above the …..
troposphere and tropopause
Temperatures at the ozone layer …..
increase
The tropopause marks the …..
roof of the troposphere
Equatorial trough = high/low pressure
low
Migration occurs because …..
the equatorial trough moves further north in summer than it does south
What are the temps doing in the stratosphere …..
they are constant and rising towards the ozone layer
Vertical movement of air:
Rising air contains vast amounts of ….. ….. and this causes …..
water vapor, extensive wx
Why is there no wx beyond the tropopause …..
because here the convective air no longer cools with height
Vertical movement within the atmosphere becomes less vigorous above the height of the tropopause becuase …..
the environment no longer gets colder with increased height
The stratosphere rises up to ….. to meet the ozone layer
50km
What clouds are found in the stratosphere …..
only TCU and CB’s
In falling air, surface pressure …..
increases
The equitorial trough moves further north than it does south because …..
The mid summer surface tempreatires are higher at any given latitude in the northern hemispher because of the greater land mass
The height of the troposphere in Australian latitudes is approximately …..
10km
The troposphere rises from ….. to …..
8km to 18km
