GEOSCIENCE 40 EXAM 2 || WITH A+ GUARANTEED SOLUTIONS.
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GEOSCIENCE 40
Instelling
GEOSCIENCE 40
extratropical cyclone correct answers low pressure mid latitude system characterized by converging winds and ascending air. Forms between ferrel and polar cells
-counter clockwise in N
-clockwise in S
ferrel cell correct answers middle atmospheric circulation cell. Air rises at 60 and falls at...
GEOSCIENCE 40 EXAM 2 || WITH A+ GUARANTEED
SOLUTIONS.
extratropical cyclone correct answers low pressure mid latitude system characterized by
converging winds and ascending air. Forms between ferrel and polar cells
-counter clockwise in N
-clockwise in S
ferrel cell correct answers middle atmospheric circulation cell. Air rises at 60 and falls at 30
hadley cell correct answers atmospheric circulation cell nearest the equator. Air rises and falls at
30
polar cell correct answers atmospheric circulation cell centered over each pole
trade winds correct answers surface winds within hadley cells centered at about 15 that approach
from the NE in N and SE in S
tropical cyclone correct answers low atmospheric pressure, winds blow counter clockwise in N
and clockwise in S
Westerlies correct answers Surface winds within ferrel cells around 45 that approach from SW in
N and NW in S
Antarctic bottom water correct answers densest ocean water formed in weddell sea during S
hemisphere winters
Antarctic circumpolar current correct answers current driven by powerful westerly winds North
of antarctica. Largest of currents, permanently eastward
eastern boundary current correct answers weak, cold, diffuse slow moving current at the eastern
boundary of an ocean. (off west coast of continent)
Eddy correct answers circular movement of water usually formed where currents pass
obstructions or between two adjacent currents.
ekman spiral correct answers theoretical model of the effect wind has on water. Because of the
coriolis effect the surface layer is expected to drift 45 to the right in N and 45 to the left in S
Ekman transport correct answers in north, 90 to the right of wind direction
El Nino correct answers southward flowing nutrient poor current of warm water off the coast of
western South America caused by a breakdown of trade wind circulation
, Gyre correct answers circuit of mid latitude currents abround a peripherary of an ocean basin (5+
antarctic circumpolar current)
Gulf Stream correct answers Strong western boundary current of N atlantic off usa
la nina correct answers south pacific drops below average values, at end of ENSO
North Atlantic Deep Water correct answers cold, dense water that flows onto floor of North
atlantic ocean from arctic
Southern Oscillation correct answers Reversal of airflow between a normally low atmospheric
pressure over the western pavific and normally high pressure over the eastern pacific. Cause of
El Nino
Thermohaline Circulation correct answers water circulation produced by differences in
temperature and density
Transverse Current correct answers East to west or West to east current linking the eastern and
western boundary currents (North Equatorial Current)
Western Boundary Current correct answers strong, warm, concentrated fast moving current at the
western boundary of an ocean (off east coast of continents) (gulf stream and kurishio)
Westward intensification correct answers Increase in speed of geostrophic currents as they pass
along the western boundary of an ocean basic
west wind drift correct answers Current driven by powerful winds north of antarctica. Largest of
all ocean currents permanently eastward
Wind induced circulation correct answers vertical movement in surface water
(upwelling/downwelling)
C=SqGD correct answers relationship of speed, acceleration from gravity and depth
C=L/T correct answers relationship of velocity, wavelength and period
Capilary wave correct answers Tiny wave less than 1.73 cm, first wave to form
dispersion correct answers dispersion of wind waves by wavelength as they move away from the
fetch. Dispersion occurs because waves with long wavelengths move more rapidly
Fetch correct answers distance wind blows without significant change in direction
Gravity wave correct answers A wave greater than 1.73 whose restoring force are gravity and
momentum
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