Climate Flashcards

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0
Q

Latitude

A
  • The distance from the equator north and south measured in degrees
  • Latitudes closer to the equator have higher temperatures.
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1
Q

Climate

A

Describes the weather patterns of an area for a long period of time

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2
Q

Topography

A
  • The physical features of a region like mountains or lakes

- Representation of the features of a place or region on a map,

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3
Q

Global/prevailing Winds

A
  • Prevailing winds are winds that blow primarily in 1 direction
  • Prevailing winds that carry cold air masses tend to bring cooler and dryer weather
  • Prevailing winds that carry warm air masses tend to bring warm weather
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4
Q

Classifying earths climates

A

The Koeppen Classification system uses temperature and precipitation to divide earths climate into 5 major types.

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5
Q

Tropical climates

A
  • high temperatures year round
  • Strong sunlight all year b/c they are close to the equator
  • Some also recieve high rainfall
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6
Q

Dry climates

A

Most of the worlds deserts are classified as dry climates covers about 30% of earth

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7
Q

Deforestation

A

Cutting down of forests

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8
Q

Elliptical

A

A warmer period of time that alternates with a ice age

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9
Q

Leeward

A

The side of the mountain on which the air has list all it’s moisture

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10
Q

Savanna

A

Land areas made up of tall grasses and scattered trees

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11
Q

Steppe

A

Semi arid region that receives slightly more rainfall than desserts

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12
Q

Temperate zones

A

Zones that lie between 23.5 and 66.5 degrees north or south of the equator

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13
Q

Mild climates

A

Divided into 3 sub-climates

  • Humid subtropical
  • Marine west coast
  • Mediterranean
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14
Q

Continental climates

A
  • Generally located within the interior of most continents

- Most of North America has a continental climate

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15
Q

Polar climates

A
  • Coldest regions on earth
  • Occur at high latitudes in both hemispheres
  • Usually contain low levels of precipitation
16
Q

Microclimate

A

Small area with climate different from the climate of the area around it.

17
Q

Ice ages

A

Periods when the average temperature was about 5 degrees c lower, and large sheets of ice covered much of our planets surface.

18
Q

Seasons

A

Short termed periods of climatic change

19
Q

Earths seasons causes

A

By regular variations in temperature, daylight and weather patterns

20
Q

Earth on its Axis

A
  • This causes different areas of our planet to receive different amounts of solar radiation.
  • When the North Pole is tilted toward the sun, the northern hemisphere is warmer (summer)
  • When the South Pole is tilted towards he sun, the North Pole is colder, (winter)
21
Q

El niño definition

A

-A warm ocean current that develops off the western coast of South America.

22
Q

Earths orbit

A
  • Earth follows a elliptical orbit, meaning it moves along an oval, not a circle.
  • During periods when earth is closer to the sun, we recieve more solar radiation
  • When we are farther from the sun, we recieve less
23
Q

Perihelion

A

When we are closest to the sun.

24
Q

Aphelion

A

When we are farthest from the sun.

25
Q

Earths tilt

A
  • responsible for the seasons
  • tilts at 23.5 degrees
  • the higher of degree of tilt, the more extreme the seasonal changes become
26
Q

The greenhouse effect

A
  • the natural heating of the earth caused by certain gases in the earths atmosphere
  • Some of the suns radiation is reflected back into space, some is absorbed by earths surface
  • the energy is released onto the atmosphere, and can be trapped by greenhouse gasses
27
Q

Global warming causes

A
  • rising levels of Co2

- increases Co2 means means more heat is trapped, which makes temps rise

28
Q

Human impact on global warming

A
  • Burning of fossil fuel like oil, coal and natural gases.
  • large power plants
  • they both release Co2in the atmosphere
30
Q

What El Niño causes

A
  • causes the dry northwestern coast to become hot and wet
  • a dramatic climate change
  • brings violent storms to Cali droughts to Australia.
56
Q

When El Niño occurs

A

-occurs when the trade winds slow down, or blow backwards.