air 2

Question 1

3 important factors determine structure and stability of the atmosphere

Answer 1

gravity of the earth
amount of gas present (DENSITY)
temperature of gases **

Question 2

temperature changes in atm with

Answer 2

location (amnt of radiation)
Time (season)
altitude

Question 3

factors that change temperature

Answer 3

orientation of earth w respect to the sun
cloud activity
time of day
volcanic activity

Question 4

troposphere

Answer 4

turning, changing
unstable
temp decreases w increasing alt
weather occurs here
90% of total mass of atm
tropopause - 10-16km

Question 5

stratosphere

Answer 5

stratified (layered, ozone)
stable region, particles remain for years
global temperature inversion(warm air (UV absorbed in Ozone) overlies cooler air)
temp increases w alt
9.5% mass of atm
absorbs UV radiation
50 km at stratopause

Question 6

mesosphere

Answer 6

unstable
temp decreases w alt
.5% mass of atm
shooting stars
85 km st mesopause
lowest lvl of ionosphere

Question 7

thermosphere

Answer 7

inversion region
air hated by absorbing xrays and other high radiation from sun
highly ionized ionosphere

Question 8

wind systems driven by

Answer 8

heating by sunlight at earths surface

rotation of earth (coriolis effect)

friction/collision of the atmosphere (slows motion)

(evap and condensation)

Question 9

hadley cells

Answer 9

move warm air away from tropics - bouyancy
N and S

Question 10

ferrel cells

Answer 10

moves air from higher latitudes down - subsidence
N and Sj

Question 11

jet streams

Answer 11

move eat/west
5 major

Question 12

total global mixing takes

Answer 12

2 yrs