8.                  Run PIHM

 

RunPIHM is the module where PIHM has been integrated to Qgis. For a successful run of the model is required to have all the input files prepared in accordance with the file format of the PIHM. It should be noted that PIHMgis helps prepare only 4 files out of the 8 files needed for a model run.

 

In the input section of the dialog browse the folder where the input files for the model has been stored. The model assumes that each input file has the same first syllable for the file name followed by “.” and file type (for e.g. domain.mesh; domain.att; domain.soil). Input File ID corresponds to that first syllable of the input files (for the “domain” example - input domain in the Input File ID textbox). Click RUN to begin processing. The interacting hydrologic processes of different timescales introduce stiffness into the system of ordinary differential equation. Therefore, the time a model run will take to complete depends on several factors which include: simulation duration, forcing data, system state. A progress-bar has been provided to keep track of progress of the simulation. After the completion of the model run Close the dialog.