Homework 7
Broadband Flux Emissivity model
Due Monday, April 17

Radiation objective:

Explore how changing the distribution of a gases and temperature profile change radiative heating profiles.

MATLAB objective:

Interpreting and using a program written by someone else.

Using a radiative transfer code to conduct sensitivity studies.

Assignment

Here is a matlab program (irbroad.m) to compute the IR fluxes using a broadband flux emissivity model (see notes). It reads a data file containing the standard atmosphere for the middle-latitude summer conditions (mls.txt). 

• Draw a flow diagram for this program
• Modify the program to compute radiative heating profiles.
• How does changing the specfic humidity (q) of the upper troposphere (pick reasonable values), change the radiative fluxes at the top and bottom of the atmosphere and heating profiles? (Explain)
• How does changing the specfic humidity (q) of the lower troposphere (pick reasonable values), change the radiative fluxes at the top and bottom of the atmosphere and heating profiles? (Explain)
• How does changing the temperature of the upper troposphere (pick reasonable values), change the radiative fluxes at the top and bottom of the atmosphere and heating profiles? (Explain)
• How does changing the temperature of the lower troposphere (pick reasonable values), change the radiative fluxes at the top and bottom of the atmosphere and heating profiles? (Explain)