The Troposphere

• Temperature decreases with height - really, it does!

• extends from surface to about 10-12 km

• top of troposphere is called the tropopause-separates troposphere from stratosphere

• where all the weather occurs

• Inherently unstable - what does "unstable" mean?

• rate of temperature decrease is about 6.5 degrees Celsius per 1 km (called the lapse rate)

• the jet stream is located in the upper troposphere

• higher is summer, lower in winter

  • tropopause height is proportional to mean tropospheric temperature

• find the tropopause with real data.......