UGA GEOG1111 Chapter 2

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Earths revolution

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66 Terms

1

Earths revolution

________ Determines the length of the year and duration of the seasons.

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2

Insolation

________- Intercepted solar radiation arriving at the top of Earths atmosphere and reaching Earths surface (not returned back to space)

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3

nuclear fusion

We exist because of the energy that the sun produces (from ________- Hydrogen atoms smashed together, creating Helium)

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4

Declination

________- Latitude of the sub- solar point; point at which the suns rays hit at 90 degrees, always located between the two tropics, and the location changes with the seasons.

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5

Convection

________ has the energy form from the molecules themselves moving.

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6

Gravitational pull

________ compresses the air near the surface.

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7

successive peaks

Wavelength- Distances between ________, crests, or troughs.

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8

predictable 11 year

Sunspots are found on the surface of the sun, and they follow a(n) ________ cycle.

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9

inner

It shields the ________ atmosphere and surface from harmful iodizing radiation.

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10

solar wind

The interaction between ________ and the magnetosphere leads to Aurora Borealis in the North and Aurora Australis in the South.

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11

Photochemical Smog

________- UV radiation /sunlight mixing with pollution from burning gasoline.

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12

Winter Solstice

________- Dec 21st Suns rays hit at Tropic of Capricorn.

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13

Nitrogen Dioxide

Sunlight when mixing with ________ can clean off an oxygen atom, which can combine with molecular oxygen and create ozone, which is bad at the surface because it causes respiratory issues.

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14

Solar Constant

________- Average amount of energy reaching the top of Earths atmosphere (1372 W /meter^2)

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15

tropospheres energy

The ________ comes from the earths surface.

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16

Daylength

________- constant day length ONLY occurs along the equator.

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17

ozone layer

The hole in the ________ is less of a hole, but more of a weaker portion which lets through more UV.

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18

tilt

The ________ of the earths axis (and the fact that the ________ is constant) which influences the seasons.

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19

Thermopause

________- Outer boundary of earths atmosphere.

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20

Summer solstice

________- June 21st Suns rays hit at Tropic of Cancer.

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21

Frequency

________- of waves passing a fixed point every second.

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22

Milky way

The ________ alone has over 100 billion stars.

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23

EM radiation

________ is broke into categories based on its wavelength: Shortwave, visible, and Infrared.

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24

Solar radiation

________ provides nearly all energy.

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25

Radiation

________- Propagated without medium (like a vacuum)

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26

dangerous radiation

Shortwave- Gamma, X- rays, & Ultraviolet- Super ________ that can harm us.

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27

UV energy

Absorbs ________ and converts it to heat energy.

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28

Global Net Radiation

________- difference between incoming and outgoing radiation.

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29

Waves

________ consist of electric and magnetic components à Electromagnetic Radiation.

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30

Earths orbit

________ is elliptical, meaning its distance from the Sun varies.

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31

Energy

________- Ability to do work (electrical, chemical, thermal, or nuclear)

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32

Anthropogenic Pollution

________- Primarily an urban phenomenon (51 % of the world lives in urban places, 1 /3 exposed to unhealthy levels of pollution)

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33

earths

The ________ magnetosphere deflects the wind towards the poles so very little of it gets into the atmosphere.

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34

Sulfur Dioxide

Produces ________, CO2, and particulate matter.

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35

main gasses

Homosphere: the atmospheres ________ are really well mixed (Nitrogen, Oxygen, CO2, Ozone, etc)

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36

Acid deposition

________- Formerly acid rain.

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37

short wavelengths

Earth inputs the ________ energy from the sun and outputs its own longer wavelengths as well as some of the reflected ________ from the sun back into space.

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38

Electromagnetic Radiation

The sun emits ________, or EM Radiation.

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39

Part of the Stratosphere

Ozonosphere: ________, has the Ozone layer.

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40

energy transfer

Conduction has the ________ from molecule to molecule.

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41

Convection

________- Transferred by vertical movement.

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42

Solar wind

________ are electrically charged particles that come from the sun and take 3 days to reach earth.

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43

ozone layer

The ________ is 3mm thick at sea level.

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44

earth

Because the ________ is a sphere, there is an unequal distribution of energy from the sun.

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45

Winter Solstice

________- Lower latitudes have longer days, Higher latitudes have slower days.

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46

Summer Solstice

________- Higher latitudes have longer days, Lower latitudes have slower days.

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47

Magnetosphere

magnetic field surrounding the Earth resulting from internal processes within the Earths core

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48

Energy

Ability to do work (electrical, chemical, thermal, or nuclear)

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49

Joule (J)

Standard unit of energy

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50

Watt (W)

Rate of energy Flow (W = 1 J/s)

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51

Conduction

Molecule to Molecule transfer

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52

Radiation

Propagated without medium (like a vacuum)

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53

Amplitude

Wave Height

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54

Wavelength

Distances between successive peaks, crests, or troughs

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55

Frequency

of waves passing a fixed point every second

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56

Absolute 0

the temperature where all molecular motion ceases

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57

Visible

The colors that we can see, ROYGBIV

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58

Infrared

Near infrared, Shortwave infrared, Middle infrared, Thermal infrared

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59

Longwave

microwaves and radio waves

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60

Daylength

constant day length ONLY occurs along the equator

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61

Summer solstice

June 21st Suns rays hit at Tropic of Cancer

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62

Fall Equinox

Sept 22nd

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63

Winter Solstice

Dec 21st Suns rays hit at Tropic of Capricorn

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64

Spring Equinox

March 21st

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65

Summer Solstice

Higher latitudes have longer days, Lower latitudes have slower days

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66

Winter Solstice

Lower latitudes have longer days, Higher latitudes have slower days

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