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Flashcards in Test 3 Deck (30):
1

isobars

are lines of equal pressure placed on a map to indicate areas of high and low pressure and how pressure changes from one location to another

2

CF is an apparent force

due to earths rotation=no real force is being applied

3

N. hemisphere

right

4

S. hemisphere

left

5

CF is at max at

the poles

6

CF is zero at

equator

7

CF is proportional to

the speed at the object being deflected-greater wind speed, greater deflection

8

on a homogeneous (all land or water), non rotating earth

H pressure would be at poles, and L pressure would be at equator

9

intertropical convergence zone (ITCZ)

convergence of surface air near the equator

10

*look over paper at wind belts and cells

*

11

geostrophic winds

PGF and CF act together balance

12

jet stream

greatest area of PGF causes a "river" of fast moving air

13

zonal

W to E geostropic winds

14

meriodional

N to S

15

friction reduces wind speed, lower wind speed=

=lower CF

16

cross-isobaric flow

PGF>CF

17

*need to know where Gulf stream, canary current, cali current, peru/humbolt current

*

18

Low pressure

converges at center, diverges aloft, upward motion, cyclonic flow

19

high pressure

diverges at center, converges aloft, downward motion, anti cyclonic flow

20

ocean currents are result of

coastline shapes and density differences

21

thermohaline circulation

energy distribution mechanism, moves warmer surface pole-ward and colder bottom water equator-ward, driven by density differences in N Atlantic ocean

22

El Nino

warming of Pacific ocean surface near coast of Peru in Dec, upwelling is decreased, trade winds less powerful

23

La Nina

cooling, cycle of every 3-7 yrs, upwelling increased

24

upwelling/downwelling

surface ocean currents "pile up" water or remove water along coastlines

25

winter weather: la nina

variable polar jetstream, warmer/wetter

26

winter weather: el nino

drier, colder, extended pacific jet stream

27

spatial climatic variability is based on

energy/temp, humidity/precip, atmospheric/oceanic motion

28

climate

temp and precip form simple bases of climate of location

29

Koeppen system

based on mean monthly temp, mean monthly precip, and mean annual temp, but with vegetation distributions in mind

30

Thornthwaite Classification

based on temp and effective precip-climatic water budget