Starting from a standard daily J2K hydrological model, you can change the temporal resolution of the model by applying the following changes:
- Change all time series inputs to hourly time steps
- Modify the general time step of the model in the main J2K context
- Search for tempRes in all components and change its value from daily (d) to hourly (h)
- Modify the parameters that are explicitly time-dependent :
- in the soil module (J2KProcessLumpedSoilWater):
- maximum percolation speed (for example 20mm/d->0.83mm/h)
- maximum infiltration rate in summer/winter (mm/d -> mm/h)
- be careful with the direct translation into hourly values and test the results regarding generating of overland flow and interflow
- in the groundwater module (J2KProcessGroundwater):
- RG1/RG2 outflow coefficient (10d -> 240h)
- in the soil module (J2KProcessLumpedSoilWater):
- Remove elevation correction of precipitation in HRULoop/regionalization/precipRegionalization module by setting the parameter elevationCorrection to “false”
- In the unit conversion module, change L/d to L/h
- Modify the unit parameter in the Efficiencies calculator from daily (d) to hourly (h)