Deep Ocean Currents

Question 1

what is salinity?

Answer 1

how much salt is in the water

Question 2

salinity is how much ______ is in the water

Answer 2

salinity

Question 3

Differences in _____ and _____ create different densities in ocean water

Answer 3

temperature, salinity

Question 4

What two factors influence density in ocean water?

Answer 4

temp. , salinity

Question 5

differences in salinity and temperature causes water to…

Answer 5

rise and fall

Question 6

the densest water is _____ and _____ salty

Answer 6

cold, more

Question 7

The most buoyant water is _____ and _____ salty

Answer 7

warm, less

Question 8

what is deep ocean water circulation referred to as?

Answer 8

thermohaline circulation

Question 9

thermo has to do with the ______ of the water and haline has to do with the _______ of the water

Answer 9

temp., salinity

Question 10

what is upwelling?

Answer 10

when water rises from depth to the surface

Question 11

the movements (sinking and upwelling) of deep ocean currents circulate water ______ similar to a ______ _______

Answer 11

efficiently, conveyor belt

Question 12

Deep ocean currents circulate water throughout our ocean basins so water does not become…

Answer 12

stagnant

Question 13

why are there concerns that global warming could affect thermohaline circulation?

Answer 13

because as glaciers melt they add freshwater to the oceans, which decreases ocean salinity.

Question 14

Ocean currents have a significant affect on _______ across the globe

Answer 14

climate

Question 15

why do ocean currents affect climate?

Answer 15

because they do a really efficient job of transferring heat energy between low and high altitudes and low and high latitudes

Question 16

ocean currents do an efficient job of transferring ____ energy between low and high _____ and low and high ______

Answer 16

heat, altitudes, latitudes

Question 17

Hotter water from ______ latitudes ______ the atmosphere at higher latitudes

Answer 17

lower, warms

Question 18

Overall oceans exert a moderating effect on ______

Answer 18

climate

Question 19

basically oceans take the warm band of heat around the _______, and _____ that heat out north and south around the globe

Answer 19

equator, spread

Question 20

why can oceans carry heat energy?

Answer 20

because water has a large heat storage capacity that allows heat to be stored in the water and carried over long distances.

Question 21

water has a large heat _____ capacity that allows heat to be _____ in the water and _____ over long distances.

Answer 21

storage, stored, carried

Question 22

the large heat storage capacities of the ocean allow for…

Answer 22

heat to be released in cold areas and stored in warm