chapter 7: ocean currents
whcih of the following is NOT an eastern boundary current?
Gulf stream
An increase in seawater density can be caused by a ________ in temperature or a/an ________ in salinity.
decrease; increase
deep ocean currents are driven primarily by __________ and caused by __________
density differences; differences in salinity and temperature
about what percent of the wind's energy is transferred to the ocean surface?
2%
the observation that ships and icebergs in the southern hemisphere float to the left of the wind direction is an exmple of which of the following?
Ekman transport
Geostrophic circulation within a gyre is driven by:
gravity and the Coriolis effect
which of the following currents contributes to the south eastern united states being humind?
gulf stream
Deep-water currents move ________ volumes of water and are much ________ than surface currents.
larger; slower
the california current is associated with which gyre?
north pacific gyre
the brazil current is associated with which gyre?
south atlantic gyre
which of the following statements is true of surface ocean currents?
surface currents transport warm water toward the equator
the Ekman spiral is caused by
the wind and the Coriolis effect.
Equatorial currents are driven by the:
trade winds
Surface ocean currents are driven primarily by ________ and modified by ________.
wind; Coriolis effect and land