GEOG110 Flashcards Preview

College! > GEOG110 > Flashcards

Flashcards in GEOG110 Deck (30):
1

name three examples of climatic hazards

forest fire, tornadoes, hurricanes

2

name two ways climate can affect health

west nile virus and lyme disease

3

between what time was the little ice age

1500 to 1850 AD

4

between what time was the medieval climatic optimum

1100 to 1450 AD

5

dendrocilmatology

tree rings

6

palynology

pollen

7

geomorphology

landforms

8

limnology

lake sediments

9

name two things that are occurring with recent climate change

world is warming on average, but cooler in some areas
precipitation is increasing, but the subtropics are getting dryer

10

name five climatic variables

temperature, precipitation, humidity, wind speed, cloudiness

11

Earth's Axial tily

23.5 degrees

12

What do we call long scale axial changes?

Milankovitch

13

what do we call a change in the timing of seasons and how often does this occur

precession and about 20k years

14

how often does the eccentricity of earth's orbit change

100k years

15

how often does axial tilt change

40k years

16

how many milankovitchs must be in phase for a glacial/interglacial period to be in effect

at least 2

17

why is the semi annual CO2 dominated by the NH

there are many forests on its higher amount of land mass

18

what is the latitude heat imbalance

the move of energy from equator to poles. 60% through atmosphere and 40 % through ocean current

19

DTR?

diurnal temperature range

20

stefan-boltzman's law

the sun is warmer than the earth and therefore it heats the earth

21

wien's law

the wavelength emission from the sun is shorter than the earth's atmosphere

22

kirchoff's law

the sun is a blackbody and the earth is a grey body
-the sun emits at all wavelengths and the earth absorbs short and emits long

23

earth's atmosphere attenuates short wave radiation by

reflection, scattering, and absorpotion

24

earth's atmosphere attenuates long wave radiation by

absorption through greenhouse gases and clouds

25

earth's average albedo

30%

26

latent heating

moist convection

27

sensible heating

dry convection

28

bowen ratio and what does it mean

it is used to use the energy budget equation to see if a climate is moist or dry - above one is dry below one is moist

29

positive q means

temps moving from surface to air or soil

30

where and when does the greatest evaporation rates occur?

over oceans east of continents during the winter