Higher altitude and temperature

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Offline Nanac

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Higher altitude and temperature
« on: 21/06/2006 19:02:55 »
Pls explain how higher the altitude lower the temperature ? Also hill stations are cooler than sea level land ?
 

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Offline Soul Surfer

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Re: Higher altitude and temperature
« Reply #1 on: 21/06/2006 22:39:45 »
The normal adiabatic lapse rate is about one degree for every three hundred feet if I remember correctly.

As you go to higher altitudes the pressure of the atmosphere gets lower (because there is less air above you pressing down).  Now you know that if you compress gas it gets hotter(think of a bycicle pump this gets hot when you pump up tyres). The converse happens when the pressure falls, it gets colder. So if air rises for any reason it cools off and this cooling is the stable condition for the air.  OK weather conditions can produce abnormally fast lapse rates and inversions in which the air at higher altitudes is warmer than air at lower altitudes and this is what causes the weather.

Learn, create, test and tell
evolution rules in all things
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« Last Edit: 21/06/2006 22:41:00 by Soul Surfer »
Learn, create, test and tell
evolution rules in all things
God says so!

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Offline ukmicky

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Re: Higher altitude and temperature
« Reply #2 on: 22/06/2006 00:42:23 »
quote:
The normal adiabatic lapse rate is about one degree for every three hundred feet if I remember correctly.


I wish i had listened to my teacher when i was at school.

I get so jealous of some other people's intelligence sometimes.[:)]

Michael
« Last Edit: 22/06/2006 01:03:04 by ukmicky »

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Offline Nanac

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Re: Higher altitude and temperature
« Reply #3 on: 24/06/2006 20:06:09 »
Thank you soul surfer .
 

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ROBERT

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Re: Higher altitude and temperature
« Reply #4 on: 26/06/2006 14:30:53 »
At very high altitudes (+100 miles) the temperature increases to over 1000C:-

http://liftoff.msfc.nasa.gov/academy/space/atmosphere.html
« Last Edit: 26/06/2006 14:33:57 by ROBERT »