2007-01-31 02:04:00 · 4 answers · asked by Da Jimster 1 in Science & Mathematics ➔ Weather
It varies drastically depending on the atmospheric conditions. In the standard atmosphere (which never actually occurs but is just used as a model of the atmosphere) it drops at a rate of 6 degrees C per km.
2007-01-31 02:39:17 · answer #1 · answered by Anonymous · 0⤊ 0⤋
This is a question that has several answers.
NORMAL LAPSE RATE equals about -3.5 degrees/1000 feet of elevation change in still air. It is related to pressure change.
ADIABATIC LAPSE RATE has two values, one, for "Dry" air that is rising due to various reasons and is related to expansion. This is about -5.5 degrees/1000 feet. The second, or "Wet" rate is for air rising at temperatures at or below the 'dew point'. In this case the condensation process releases heat which counteracts the temperature drop due to expansion (the dry rate). This cooling rate is about -3.2 degrees/1000 feet.
You can tell where the rate changes in the air column from the dry rate to the wet rate because this occurs where the base of low clouds first form.
2007-01-31 07:25:53 · answer #2 · answered by sternsheets 2 · 1⤊ 0⤋
The average temperature lapse rate in the troposphere is 6.5 C/km.
2007-01-31 02:58:57 · answer #3 · answered by 1ofSelby's 6 · 1⤊ 0⤋
The decrease will amount to 3 to 5 degrees F for each 1,000 foot increase. So if it’s 30 deg at my 2,000 ft elevation I can expect it to be around 9 degrees cooler at the top of our 5,000 ft ski hill. The complicated term is “adiabatic lapse rate” for which you can search.
2007-01-31 04:04:51 · answer #4 · answered by Anonymous · 0⤊ 0⤋