I'm using the WRF irrigation module (the one described in the WRF User Guide, not the Noah-MP irrigation scheme) to simulate irrigation impacts, particularly using the sprinkler method (sf_surf_irr_scheme = 3). While the irrigation is functioning as intended with other irrigation methods (like channel - sf_surf_irr_scheme = 1, and drip - sf_surf_irr_scheme = 2), I am encountering a major limitation with the sprinkler method:
The irrigation water is added directly to the precipitation output fields.
This makes it very difficult to distinguish between natural rainfall and applied irrigation from the rainfall output, which is essential for my evaluation and analysis. I’m looking for guidance on either of the following:
Is it possible to modify the WRF irrigation module so that irrigation is saved as a separate output variable, rather than being combined with rainfall?
Alternatively, is there a way to direct the irrigation flux into a different history stream or output file, e.g., via auxhist or auxoutput?
I understand that the Noah-MP irrigation scheme handles irrigation separately and outputs variables like IRSIVOL, but in this case, I'm using the standard WRF irrigation scheme that allows for constant irrigation application, e.g., 8 mm/day.
I have done a couple of modifications to both the module_irrigation.F and Registry.EM_COMMON, but I keep running into one error after another. I am using WRF version 4.2.2.
This is the path to the set up on Derecho:
/glade/derecho/scratch/achugbu/Nebraska/TEST_Mod_4.2.2/MODI_IRR/WRF-4.2.2
The irrigation water is added directly to the precipitation output fields.
This makes it very difficult to distinguish between natural rainfall and applied irrigation from the rainfall output, which is essential for my evaluation and analysis. I’m looking for guidance on either of the following:
Is it possible to modify the WRF irrigation module so that irrigation is saved as a separate output variable, rather than being combined with rainfall?
Alternatively, is there a way to direct the irrigation flux into a different history stream or output file, e.g., via auxhist or auxoutput?
I understand that the Noah-MP irrigation scheme handles irrigation separately and outputs variables like IRSIVOL, but in this case, I'm using the standard WRF irrigation scheme that allows for constant irrigation application, e.g., 8 mm/day.
I have done a couple of modifications to both the module_irrigation.F and Registry.EM_COMMON, but I keep running into one error after another. I am using WRF version 4.2.2.
This is the path to the set up on Derecho:
/glade/derecho/scratch/achugbu/Nebraska/TEST_Mod_4.2.2/MODI_IRR/WRF-4.2.2