Hi everyone;

I know how usually calibration works, but what I dont get is the following:

1- How does PEST calibrate the WEAP module using historical River flow data?
2- What exactly happens in WEAP when PEST is used to calibrate WEAP?
3- What changes happens to the input data like the crop coefficient and other data used in calculating the flow in the river after calibration using PEST?
4- How to validate WEAP to make sure it is calibrated?
5- Are there any methods rather than PEST that can be used to calibrate to calibrate WEAP?

Thank you all.