# Temperature change in Earth atmosphere models?

NASA's page about Earth atmosphere models gives a weird equation about temperature change in different atmospheric layers. One of the formulas looks like this:

Can someone explain to me what this means?

• I just thought that these are two different equations – mad.redhead Oct 25 '20 at 14:59
• I'm not sure I understand. They are indeed two different equations. One is for temperature vs altitude. The other is for pressure vs temperature. Every equation is described in the above link, with the associated units. – Eric Duminil Oct 25 '20 at 15:14
• sorry, I guess my question was really dumb and incorrect. But I just couldnt stand the fact that T = 15.04 + 0.00649*h is that simple formula to calculate temperature with altitude. – mad.redhead Oct 26 '20 at 10:15
• Your question wasn't dumb nor incorrect. In order to save time, you could have mentioned what you understand and what not, but that's about it. It's always better to ask when something's not clear. – Eric Duminil Oct 26 '20 at 16:54