What is the relationship between altitude and temperature of a place?

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The temperature at sea level, under standard conditions, is taken to be 15 degrees C. As we go up or our altitude increases, temperature falls. The rate of decrease of temperature is 6.5 degrees C for each 1 km altitude change. This can also be written as 3.6 degree F for...

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The temperature at sea level, under standard conditions, is taken to be 15 degrees C. As we go up or our altitude increases, temperature falls. The rate of decrease of temperature is 6.5 degrees C for each 1 km altitude change. This can also be written as 3.6 degree F for every 1000 ft increase in altitude. That is why we find that mountaintops are always colder compared to plains and that some mountains are always covered with snow. As we keep on going higher and higher, temperature falls till we reach the top of the troposphere (except for the region known as tropopause), where the temperature is about -57 degrees C. Beyond that, temperature increases in the stratosphere, only to fall again in mesosphere. And at the top of our atmosphere, temperature increases with altitude in the thermosphere.

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The temperature and altitude relationship depends upon the altitude of a location. In general, as we go higher, the temperature falls. This is the reason, mountains have lower temperature and beyond a certain height, mountains are always covered with snow. The elevation is generally measured with reference to mean sea level. As we go up in altitude, the temperature falls at a rate of about 6.5 degree Celsius per 1000 m altitude rise. Till temperature fall continues within the lowermost layer of our atmosphere, known as the troposphere. Above the troposphere, the stratosphere exists and in this region the temperature increases with an increase in altitude. The mesosphere is the part of the atmosphere that lies above the stratosphere. In this region, the temperature falls with an increase in altitude. And finally as we continue rising up, we reach the thermosphere, where the temperature increases with increased altitude.

Hope this helps. 

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