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20 Cards in this Set
- Front
- Back
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describe the relationship of the variables contained in the Stephan-Boltzmann law
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relationship of the intensity of emitted energy to absolute temperature
if temp approaches zero, there will be no energy |
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perihilion
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close to the sun
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aphelion
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far from sun
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Bodies of water in the (higher/lower) altitudes receive (higher/lower) sun angles, causing them to reflect (more/less) fo the solar radiation resulting in (more/less) absorption, eventually resulting in (colder/warmer) water.
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bodies of water in higher latitudes receive lower sun angles causing them to reflect more of the solar radiation resulting in less absorption, eventually resulting in colder water
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Declination
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the latitude that receives direct overheat insolation on a particular day
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how axial tilt causes seasons
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from the plane of ecliptic, the average is about 23.5 but varies within a 40k year cycle
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axial parallelism causes seasons
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the earth's axis maintains consistent alignment in different months as it goes around the sun
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revolution causes seasons
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the reason why insolation received at the surface of the atmosphere in antarctica is higher as compared to that received in the arctic
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rotation causes seasons
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length of night and day
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spericity causes seasons
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diff latitudes get diff concentrations of solar radiation
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what is the sagittarius a
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centre of the milk way galaxy, black hole
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solar wind
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Clouds of electrically charged particles
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what are sunspots and what can they cause?
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sunspots are caused by magnetic storms on the sun
can cause mini ice ages dark because they are cool |
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violet and red: which has longest wavelength? which has most energy?
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a) violet = shortest wavelength, highest energy
b) red = longest wavelength, lowest energy |
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A. Wien's Displacement Law
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i. the relationship of wavelength and temperature
ii. the hotter the object the shorter the wave how astronomers tell the temperature of nearby planets |
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insolation
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ii. solar radiation that reaches a horizontal plane at earth
iii. Tropics receive 2.5 times more than the poles a) the tropics are between the tropic of cancer and capriocorn b) more temperature because of curvature of earth B. Lower-angle solar rays also pas through greater thickness of atmosphere |
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Winter Solstice
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Dec 21
tropic of capricorn |
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spring equinox
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March 20 oe 21
subsolar point: equator |
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summer solstice
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June 20 or 21
subsolar point: tropic of cancer |
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fall equinox
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september 22 or 23
subsolar point: equator |
