• Download either m-file from above --- NOTE! When downloading, be sure to save the files rather than viewing them in the browser (i.e. right-click and select a path to "save target as..."). Also, select "All Files" rather than "Text Files" if given the opportunity, or your browser might stick a ".txt" on the end of the filename.
• Edit your parameter file following the instructions (Par_File_Instructions.pdf). The file may be named anything, but must contain only text. Any one of the examples above can be downloaded and modified.
• Run the program of your choice from the command line of MATLAB supplying the name of the parameter file as the only argument (for example, type "ComCZAR_SL('ComCZAR_HC1.par')" to run the streamline version of the code using the parameters for the HC1 example scenario from the paper). Both programs result in the same output, and the input files (the *.par files) work with either model.
  
• The results are a figure showing capture zones, stagnation points, and all wells from the parameter file. Furthermore, the figure is saved as an encapsulated color postscript (.eps) file in the same directory as the code with the name supplied in the parameter file.
• Please note that an encapsulated post script (*.eps) file will be exported into the directory in which the code is run.

OVERVIEW
This website presents an implementation in MATLAB of an analytical, two-dimensional, anisotropic capture zone delineation tool called ComCZAR. Example files are also included. ComCZAR was created by Mike Fienen and Jian Luo, from Peter Kitanidis' research group in the Environmental Fluid Mechanics Laboratory, Department of Civil and Environmental Engineering, at Stanford University. This model is available without warranty or guarantee for public use. If you do make use of this model, refer to the following reference:
Fienen, M. N.,J. Luo, P. K. Kitanidis (2005). Semi-Analytical, Homogeneous, Anisotropic Capture Zone Delineation. Journal of Hydrology. 312(1-4): 39-50. doi:10.1016/j.jhydrol.2005.02.008.