Mid-term exam solutions
Physics on Climate Phys 20054
Spring 2011
1. Provide a one sentence description or formula defining albedo, opacity, and lapse rate!
Albedo describes the fraction of incoming solar radiation spectrum reflected back into outer
space
Solar
SolarEnergy
Solarenergyproduction
Solarluminosity
Solarradiationspectrum
M =1.9891033 g
R=6.961010 cm
L=3.8471033 erg/sec
Tsurface 6000K
Math and Units
Math and Units
kg m 2
1 J 1
s2
1 erg 107 J
T : Temperatur e in units K
1 eV 1 .6022 1019 J
A g 6.
Homework
Homework4AtmosphereandClimate
1.
Calculate the density and the pressure conditions at the altitude of
the Mount Everest. Also determine the temperature at the peak of
the mountain at a very dry day!
2.
Calculate the lapse rate for a CO2 gas bubbl
Homework3onEnergyBalance
1. Assume a atmosphere consisting of three layers of different thickness d
and different average density : the mesosphere d =40 km, = 0.1 g/m3,
the stratosphere d =30 km, = 10 g/m3, and the troposphere d = 20 km,
= 500 g/m3. Calc