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Flashcards in Climate Vs Weather Deck (60)
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What is weather

The atmospheric conditions of a small region over a short period of time.

1

What is climate

The atmospheric conditions of a large region over long periods of time.

2

What are the climate conditions

Temperature
Precipitation
Humidity(moist air)
Winds

3

Is the climate on our planet stable

No

4

Climate varies by

Location
Through time

5

Earths climate is determined by

The interaction of many components

6

Earths Interactions include

Feedback loops

7

What are positive feedback loops

Changes that reinforce or accelerate the original system

8

What are negative feedback loops

Changes that slow down the original system

9

What are resultant global climate

A mix of positive and negative feedback loops

10

What is malankovitch cycles

Variations in earths orbital characteristics

11

Plate tectonics

Position of the continents
Volcanic activity

12

Insolation does what

Effects the amount of sunlight absorbed and reflected back into space

13

What is sunspot activity

Increases in solar output by the sun

14

Milankovitch cycle:

Eccentricity
Obliquity
Precession

15

What is Eccentricity

Changes in earths orbital shape.
(Spherical versus elliptical)
-varies: 100,000 years

16

What is obliquity

Tilt of the. Earths axis
Ranges from 22f to 24.5f
Varies: 40,000 years

17

What is precession

Tendency of the earths axis to wobble on space (wobble when slows)
Effects timing of seasons
Varies; 23,000 yrs

18

What are solstices

Position of the sun relative to C. E.

19

What are the two solstice

Summer solstice
Winter solstice

20

What is summer solar solstice

The sun is at its highest point.

21

What is winter solstice

The sun is at its lowest point

22

What are equinoxes

Day and night are same length

23

Continents have moved since

Precambrian

24

Constantly shifting continents

Alter atmospheric and oceanic circulation

25

What is paleoclimatology

Study of past climates using various proxy data

26

Proxy data includes

Tree rings
Pollen
Rock or sediment record

27

What is Dendroclimatology

Using features of the rings (width, density) to determine past climates
-extends: 9000years

28

Greenhouse effect occurs when

The presence of greenhouse gases trap the extra heat energy, preventing it from escaping the earths atmosphere

29

Natural sources

Water(h20)
Methane(ch4)
Ozone(03)
Carbon dioxide (Co2)