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Saturday, May 2, 2009

Why is Earth's surface hotter than its atmosphere

My home 2
civil lines
nagpur
02/05/09

Series-- Science in our daily life.
article- why is earth's surface hotter than its surface......

My today's article is the 49th post and it is the discussion on why is earth's surface hot than its atmosphere.i mean when we travel by planes we see outside temperature is appx.. -20 degree celcius inspite of being closer to the sun . the answer to this is
when the sun's rays fall on the earth some of them is absorved by the water bodies,most of them are reflected back to the space but the ozone layer stops it from escaping.this is the green house effect. so when we are standing on the earth,we experience maximum heat because the rays of sun reflect back after hiting the surface and we are the surface only.if we go to aaproximately 30000ft above,the reflected rays scatter and are not concenterated together. so intensity of heat carried by them is less than on the earth.so we feel cold
about 174 pw then the sun's rays are there and they cause damage to the skin but they dont increase the heat.. so it is cold.also on the surface many temperate winds are blowing.they also carry hot winds.so they warm up the land and there is saturation as there are obstacles like mountains and all. in sky there is no such thing. and the temperature is less so the winds are denser and cause sort of jet streams. it can be noticed in the case of desert.when u go to deserts in the morning it is hot but by the night it is cool as sand heats and cools down quickly. so the landform affects temperature. and the surface of earth is hotter than its atmosphere despite of being closer to the sun

Nagpur is located below the tropic of cancer.during summer season the sun's rays are perpendicular to the tropic of cancer.so it is extremely hot in nagpur in summer.the heat has broken a record of 60 years.the temperature is about 47.4 degree celcius nowadays

the series-science in our daily life ends here..
the 50th post will come within 2 days

Akshay Deoras


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