chapter28 Flashcards
troposphere
a layer extending am average of 12 km above earth’s surface
temperature inversion
occurs when air temperature increases with altitude and the air becomes stable
greenhouse effect
is a natural process in which certain gases in the atmosphere warm a planet as the absorb and emit infrared radiation
how are the atmosphere be divided into layers
differences in composition and temperature
what gas makes up the majority of the atmosphere
nitrogen
what gas makes up 21 percent of the atmosphere
oxygen
what is the remaining 1 percent remaining gases in the earth’s atmosphere
trace gases and argon
does altitude increase or decrease in the troposphere
decrease
how many layers are in the earth’s atmosphere
5
what are the layers called of the atmosphere closet from furthest
troposphere, stratosphere, mesosphere,, thermosphere, exosphere
what layer is the o-zone layer found in
stratosphere
within the mesosphere does the temperature increase or decrease
decrease
does the thermosphere and exosphere effect the weather
no
how much solar radiation does the earth absorb
50 percent
how much radiation is reflected by land and sea surface
5 percent
how much radiation is absorbed by particles
20 percent
how much radiation reflected back by clouds
25 percent
what are the three basic clouds types
stratus, cumulus and and cirris
describe stratus
layered sheet like clouds associated with rain
describe cumulus
fluffy
describe cirrus
wispy high altitude clouds
what is the process called where water moves from the land to the atmosphere
water cycle
jet stream
is a narrow band of fast moving, high altitude air
Coriolis effect
the apparent deflection of an object due to earth’s rotation
air mass
is a large volume of air with uniform moisture and temperature throughout
weather front
air mass interact in zones
how many jet streams are there in the world
4
how many pressure systems
2
a low pressure system is known as
a low L