Oceans Flashcards
What controls earths heating system
the sun
What other part of the world is getting the same season we are and why
the northern hemisphere. tilted towards the sun
what season is the sothern hemisphere expierencing
summer
Why is it daytime now
we are facing/rotated towards the sun
where is it probably nighttime now
Australia
when does the autumnal equinox occur
september 22-23
when does the vernal equinox occur
march 20-21
when does the winter solstice occur
december 21-22
when does the summer solstice occur
june 20-22
why is the equator so warm
it get sthe most direct sunlight
when is it the warmest time at the equator
spring/fall
why are the poles so cold
they have the least direct sunlight
the absence of heat
cold
heat is
thermal energy
heat always travels from a place with more heat to
less heat
when heat is transferred through a liquid/gas
convection
an example of convection
a campfire
when heat is transferred through a medium without changing the medium
conduction
an example of conduction
impulses along the nerves
when heat/energy travels as a wave and does not need a medium
radioation
example of raditation
light and uv rays
motion
kinetic energy
average kinetic energy
temperature
horizontal lines (measuring north to south)
latitude
vertical lines (measuring east to west)
longitude
how is the earth’s surface warmed by the sun
unevenly
helps drive the ocean and atmospheric circulation
heat
does the ocean or atmosphere absorb more heat
ocean
drive currents at the ocean’s surface
wind
deeper currents are driven by differences in
density
mixing and upwelling in the ocean transport nutrient rich waters to the ocean’s
surface
extreme variation in sea surface ______ and ______ affect the ocean and atmosphere circulation
heat and temperature
replacement of _____ and ______ water leads to air temperture swings and changes in humidity
cold…hot
when heat is exchanged from the ocean’s surface to the atmosphere, it influences the
climate
what 3 factors help form currents
climate, corolis effect, and landforms
cirular patterns of cuurents are called
gyres
names of the 5 gyres
Indian Ocean Gyre (generally flowing counter-clockwise) North Atlantic Gyre. North Pacific Gyre. South Atlantic Gyre. South Pacific Gyre.
where do many gyres originate
the equator
where is water equal in temperture
the equator
surface currents transport warm water from the equator to the
poles
factors that play a role in deep and surface currents are
winds, tempertures, density, corolis effect, coastal land, sea floor features, and salinity
why is warm air less dense
The molecules are packed closer together. The amount of water vapor in the air also affects the density of the air.
