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Meteorology
Exam 1
62
Environmental Studies
Undergraduate 1
10/03/2011

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Cards

Term
spheres of the earth
Definition
-lithosphere
-hydrosphere
-biosphere
-atmosphere
Term
weather
Definition
what's happening now at a specific location
Term
climate
Definition
average weather at a location
Term
climatology
Definition
study of climate
Term
elements of weather & climate
Definition
-air temp
-air pressure
-humidity
-clouds
-precipitation
-visibility
-wind
Term
Boyle's law
Definition
relation between pressure & volume given a constant temp
-increase in P, decrease in V
-decrease in P, increase in V
Term
Charles's law
Definition
relation between temp & volume given constant pressure
-increase in T, increase in V
-decrease in T, decrease in V
Term
original atmosphere
Definition
-hydrogen
-helium
-hydrogen compounds
--methane
--ammonia
Term
second atmosphere
Definition
-water vapor (80%)
-carbon dioxide (10%)
-nitrogen
-methane
-ammonia
-sulfur dioxide
-very little oxygen
*10-20 times more dense than today
Term
earth cooled
Definition
-clouds formed
-rain fell
-cooling
-oceans formed
-CO2 removed
--air -> water
--water -> rock
Term
release of oxygen into atmosphere
Definition
chemical
-water vapor & UV -> oxygen gas & hydrogen gas
biological
-light & CO2 gas -> biomass & oxygen
Term
permanent gases
Definition
-nitrogen (78.08%)
-oxygen (20.95%)
-argon (0.93%)
-neon (0.0018%)
Term
pressure changes
Definition
vertical (1mb per 10m)
horizontal (1mb per thousands of meters)
Term
vertical structure of the atmosphere
Definition
-troposphere
-stratosphere
-mesosphere
-thermosphere
Term
troposphere
Definition
temp decreases with increase height
Term
stratosphere
Definition
temp increases with increase in height
Term
mesosphere
Definition
temp decreases with increase in height
Term
thermosphere
Definition
temp increases with increase in height
Term
ozone
Definition
troposphere (good)
stratosphere (bad)
Term
formation of ozone
Definition
1. oxygen + UV rays -> atomic oxygen
2. atomic oxygen + oxygen -> ozone
Term
vertical variation in composition
Definition
homosphere (0-80km)
heterosphere (80+ km)
Term
heterosphere
Definition
-molecular nitrogen
-atomic nitrogen
-atomic helium
-atomic hydrogen
Term
rotation of the earth
Definition
counter clockwise
Term
tilt to the earth
Definition
23.5 degrees
Term
revolution
Definition
time to complete 1 revolution = 365 1/4 days
-orbit is elliptical
-closest to sun on Jan 3rd
Term
major change in seasons
Definition
inclination of the earth's axis
Term
minor change in seasons
Definition
path length
Term
angle of the sun
Definition
never directly overhead
Term
astronomical seasons
Definition
specific dates
Term
climatological seasons
Definition
how we see seasons
Term
temperature
Definition
average kinetic energy of the individuals in a substance
Term
heat
Definition
process in which thermal energy is transferred between objects of different temp
Term
mechanisms of energy transfer
Definition
-conduction
-convection
-radition
Term
conduction
Definition
energy transfer through matter by molecular energy
Term
convection
Definition
transfer of heat by mass movement in a substance
Term
radiation
Definition
transfer of energy without the need for a medium of transfer
Term
Wein's displacement law
Definition
peak wavelength = C/T
Term
Stefan - Boltzmann Law
Definition
energy = o * (t^4)
Term
scattering
Definition
incoming ray hits a particle & scatters
Term
reflection
Definition
incoming ray hits a particle & comes out at the same angle
Term
incoming solar radiation
Definition
-scattering
-reflection
-absorption
Term
Rayleigh scattering
Definition
scattering of the short end of the spectrum in a random pattern
(sun at sunset)
Term
Mie scattering
Definition
scattering by larger particles in a forward direction
(midday sun)
Term
reflection
Definition
angle of incidence = angle of reflection
Term
absorption
Definition
leads to greenhouse effect
Term
greenhouse effect
Definition
-solar radiation is absorbed
-water vapor is the dominate gas
Term
air temp data
Definition
-daily mean
-daily range
-monthly mean
-annual mean
-annual range
Term
thermometer
Definition
measurement must occur in the shade
-liquid in gas
-bimetallic
-electrical - thermistor
Term
isotherms
Definition
lines of constant temp
Term
wind chill facts
Definition
-temp of our sun doesn't drop below air temp
-temp of inanimate objects won't be impacted
Term
controls of temp
Definition
-differential heating of land/water
-ocean currents
-altitude
-geographic position
-cloud cover & albedo
Term
transformation of water
Definition
solid -> ice
liquid -> water
gas -> vapor
Term
differential heating of land/water
Definition
-depth of energy is transferred
-cooling
-specific heat
-evaporation
Term
specific heat
Definition
amount of energy required to change the temp of a material
Term
ocean currents
Definition
prevailing westerly wind
-warm (NYC)
-cool (London)
Term
altitude
Definition
Quito, Ecuador
-2800m
-13.3 C annual mean temp
Guayaquil, Ecuador
-12m
Term
geographic position
Definition
coastal vs continental
-vancouver vs winnipeg
coastal vs inland
-seattle vs spokane
leeward (toward water) vs windward (across water)
-new york vs cali
Term
cloud cover vs albedo
Definition
1. 1/2 earth is covered with clouds
2. world distribution of temp
Term
cloud cover during day
Definition
-increased albedo
-greater reflection to space
-lower high temp
Term
cloud cover during night
Definition
-cloud cover absorbs & reradiates to earth
-higher night time temp
Term
world distribution of temp
Definition
-diff heating of land/water
-ocean currents
-geographic position
Term
cycles of air temp
Definition
-daily max: 2-5pm
-daily min: sunrise
-radiation balance is the key to temp change
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