exam3 Flashcards
thermostatic properties AKA
heat properties
what is heat budget
water absorbs solar energy without large temperature change because has heat capacity
input = outflow
balanced
INPUT =
SUN
OUTPUT=
SPACE
BALANCE =
Circulation of oceans and atmosphere
t or f
contrast poles less energy than equatorial poles
true
is the heat budget for different latitudes of earth not in balance
not in balance
what do atmospheric & oceanic circulation do?
move huge amounts of heat from equator to poles to prevent boiling equator & freezing poles
high excellent heat capacity is excellent to equalize… what?
heat imbalance between equator & poles
what is weather
state of atmosphere @ particular time & place
what is climate
long-term avg. of weather in a particular area
what is more dense cold or hot air?
cold more dense
where is high density air at?
earths surface
what happens to air when it is compressed
it heats
what happens to air when it expand
cools down
air decresing from high altitude to the surface is….
compressed
TOP TO BOTTOM = COMPRESSED
air rising, cools , expands, condenses into what
precipitation
what is atmospheric circulation?
patterns of air flow due to changes in solar heating by latitude, season, rotation of Earth.
What is wind
movement of air across surface
wind =
air flows from areas of high pressure to areas of low pressure
direction of winds on a nonrotating earth in LA
South West
direction of north hemis
clockwise, right, west to east
direction of south hemis
counter clock, left, east to west
faster in poles or equator
equator
between australia & asia what formss
typhoons
in nORTH AMRICAN OCEAN what forms
hurricans
in the indian ocean what forms
cyclones
ocean currents are influenced by what 2 forces
primary & secondary
primary forces do what
start water moving, they also determine velocity
secondary forces do what
influence direction, nature of flow
ex of primary
wind, thermal expansion, & contradiction of water due to solar heating, density differences between layers
ex of secondary
influence direction, nature of flow.
coriolis effect, gravity, friction, shapes of ocean basins
what is the primary effect of driving surface currents
wind
what is a gyre
water flows continuously without obvious breaks
currents are _________ into circular patterns due to __-__ of the continent
deflected, continent
name 2 gyres that existed 200 my ago
n & s panthalassic gyres
what are 2 main zones of circulation in ocean
surface currents & gyres
explain surface current
horizintally flowing water driven by thermal expansion & wind friction. mOVE water ABOVE & WITHIN!!
upward water movement =
upwelling
downward water movement =
downwelling
