Tools for idealized parameter estimation experiments

• PE_CBL.py
  Main driver program for parameter estimation with a convective boundary layer model. Includes a few examples.

• models.py
  Model code. At the moment, it only includes a CBL model.

• ENDA.py
  Data assimilation code. Includes implementations of the EAKF and the LETKF. Also includes classes for data assimilation cycles, diagnostics and experiments (nature run + cycle + diagnostics).

• graphics.py
  Includes all the code for generating figures.

The code depends on numpy, scipy, matplotlib.pyplot