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South Pole colder than the north pole. why ?

  1. Nov 11, 2011 #1
    South Pole colder than the north pole. why ??????

    Hello .. I have a question .. Why the South Pole colder than the north pole ???? (for the earth).
     
    Last edited by a moderator: Nov 11, 2011
  2. jcsd
  3. Nov 11, 2011 #2
    Re: South Pole colder than the north pole. why ??????

    Abundance and proximity of moisture (Artic Ocean) at the north one moderates temperature swings. South pole is deep inside a continental land mass.
     
  4. Nov 11, 2011 #3
    Re: South Pole colder than the north pole. why ??????

    It's land, not sea.
    It's 3000 m above sealevel
     
  5. Nov 11, 2011 #4
    Re: South Pole colder than the north pole. why ??????

    What do you mean .. Please explain
     
    Last edited by a moderator: Nov 11, 2011
  6. Nov 11, 2011 #5

    D H

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    Re: South Pole colder than the north pole. why ??????

    And it is at a high elevation. The South Pole is about 2800 meters above sea level.
     
  7. Nov 11, 2011 #6
    Re: South Pole colder than the north pole. why ??????

    Height increases as less heat
     
  8. Nov 11, 2011 #7

    Evo

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    Re: South Pole colder than the north pole. why ??????

    Yes, it is colder at higher altitudes.
     
  9. Nov 12, 2011 #8

    rbj

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    Re: South Pole colder than the north pole. why ??????

    also, the earth is at it's aphelion when the southern hemisphere is having its winter (like in June). so when we, in the north, have winter (like in December), the earth is closest to the sun in its orbit. i would think that this would contribute to making our winters more mild than the southern hemisphere's winters.
     
    Last edited: Nov 12, 2011
  10. Nov 12, 2011 #9

    D H

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    Re: South Pole colder than the north pole. why ??????

    Correction: The correct terms are aphelion/perihelion, rather than apogee/perigee. Apogee means "furthest from the Earth" and pertains to objects such as the Moon and artificial satellites that orbit the Earth. Aphelion means "furthest from the Sun" and pertains to planets such as the Earth that orbit the Sun.

    That doesn't answer your question. You would think that the eccentricity of the Earth's orbit would make seasons in the southern hemisphere more severe than seasons in the northern hemisphere. The effect is quite small. The reason is that the southern hemisphere has only half as much land area as does the northern hemisphere. Water has a rather high specific heat compared to rock.
     
  11. Nov 12, 2011 #10
    Re: South Pole colder than the north pole. why ??????

    Is the South Pole is the highest area (for the sea level) on the surface of the planet???
    Means the South Pole is higher than the summit of Mount Everest, therefore, at low temperature???
     
  12. Nov 12, 2011 #11

    Evo

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    Re: South Pole colder than the north pole. why ??????

    A good starting point for you would be to learn how to use a world atlas. I'll start you off with the South Pole, then you can find the information on Mt Everest. It is so much better to learn how to use the proper resources.

    http://www.worldatlas.com/webimage/countrys/an.htm
     
    Last edited: Nov 13, 2011
  13. Nov 13, 2011 #12
    Re: South Pole colder than the north pole. why ??????

    Antarctica is essentially a dome... Very cold from higher in the atrmosphere drops down and flows outwards toward the ocean, where a lack of nearby landmasses ensure the prevailing winds are circular around the base of the mound. Outside warmer influences are thus prevented from getting in... (incidentally, this may just have a slight consequence for global warming theorists!!!).

    Nothing complicated in science... just observe, record and interpret!!!!!!!




    pmarchant.
     
  14. Nov 13, 2011 #13

    turbo

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    Re: South Pole colder than the north pole. why ??????

    Please observe (as stated previously) that the Arctic ice-cap is surrounded by and floating on a sea and that sea has a thermal mass that moderates the temperature up there. The Antarctic is surrounded by an ocean, but it is mostly ice-on-land, with relatively little shelf-ice. Yes, some pretty large chunks of ice have broken off Antarctic shelves over the past years, but that doesn't significantly diminish the mass of the Antarctic ice-cap. A very different set-up.
     
  15. Nov 13, 2011 #14
    Re: South Pole colder than the north pole. why ??????

    I found that the high summit of Everest 8848 m above sea level. The highest point in Antarctica point Vinson Massif at 16,066 feet (4897 m). This means that the summit of Mount Everest should be higher colder than the Antarctic because of the Mount Everest, the highest up from Antarctica. Increase in height leads to lower heat
    Is this true???
     
  16. Nov 13, 2011 #15

    D H

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    Re: South Pole colder than the north pole. why ??????

    That would be correct if all other factors were equal, but all other factors are not equal.
     
  17. Nov 13, 2011 #16

    DaveC426913

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    Re: South Pole colder than the north pole. why ??????

    Indeed.
    Mt. Everest is but a small place, surrounded by more temperate climes. Antarctica is ice sheet for about 1000 miles in every direction.
    Mt. Everest is relatively near the equator where summer is quite warm. Summer near the poles is anemic at best.
    etc.
     
  18. Nov 13, 2011 #17

    I like Serena

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    Re: South Pole colder than the north pole. why ??????

    Yes, increase in height leads to lower temperature.

    Beyond that the Antartic receives less incident sunlight.
    And more of the sunlight received is reflected back by snow and ice.
     
  19. Nov 13, 2011 #18

    D H

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    Re: South Pole colder than the north pole. why ??????

    Most importantly, the longest night (astronomical darkness) at Mt. Everest is a bit shy of eleven hours long while at the south pole astronomical darkness lasts about four months.
     
  20. Nov 13, 2011 #19
    Re: South Pole colder than the north pole. why ??????

    Climatic temperatures are generally considered to be factors of three major controls: latitude, altitude, and continental position.

    The higher the latitude the lower the annual temperature.
    The higher the altitude the lower the annual temperature.
    The closer to the center of the land mass the more extreme are the temperatures. That is, the highs will be higher and the lows will be lower.
     
  21. Nov 13, 2011 #20
    Re: South Pole colder than the north pole. why ??????

    During aphelion (the first week in July), the Earth's orbit is at its farthest from the Sun; and solar radiation at the outside of the Earth's atmosphere has a value of some 1322 watts per square meter.

    During perihelion (the first week in January), the Earth's orbit is at its closest to the Sun; and solar radiation at the outside of the Earth's atmosphere has a value of some 1413 watts per square meter.

    The Solar Constant (mean value over two sunspot cycles) is now 1366.1 watts per square meter.
     
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