Validating Parflow Output

[cathieO]

We need a documented, mostly automated, procedure to validate the results of runs among each other.

[arezaii]

Currently, the test cases (make test) have a default value of 6 significant digits based on the file pftest.tcl. Some tests, like LW, modify that value. For example, LW sets the parameter to 4 sig_digits.

For the MediumWatershed and eventually the UpperCO, the scripts I am using from CyVerse do not validate any outputs against known good values. We will need to come up with acceptable known good values for those domains if we wish to validate the output in the performance tests.