Demand results cover requirements by and allocations to demand sites. The following reports are available:
The requirement at each demand site branch, before demand site losses, reuse and demand-side management savings are taken into account.
The requirement at each demand site branch, after demand site losses, reuse and demand-side management savings are taken into account.
A catchment's irrigation shortfall in one timestep will cause an increased irrigation demand in subsequent timesteps because of the holdover soil moisture deficit. "Theoretical Catchment Irrigation Demand" will reflect only the demand from the current timestep's evapotranspiration, not counting any holdover soil moisture deficit from previous timesteps. Only available for Soil Moisture and MABIA method catchments. Because calculating theoretical demand requires additional calculations, it may slow down calculations somewhat. If you turn off this variable -- see Customizing Result Variables -- it will not be calculated.
This is the annual sum of Theoretical Catchment Irrigation Demand minus the annual sum of Irrigation (Supply Delivered) to the catchment branch. This is the "actual" unmet demand, which is not based on the double counted irrigation demand that occurs in cases of irrigation shortage. Only available for Soil Moisture and MABIA method catchments.
The amount of water supplied to demand sites, listed either by source (supplies) or by destination (demand sites). When listed by destination, the amounts reported are the actual amounts reaching the demand sites, after subtracting any transmission losses.
The amount of water delivered to each demand site branch, according to each branch's optional distribution order. Note: the results are not disaggregated by supply source. This result is only available if the "Distribution Order" option has been turned on in Basic Parameters.
The amount of each demand site's requirement that is not met. When some demand sites are not getting full coverage, this report is useful in understanding the magnitude of the shortage.
The amount of each demand site branch's requirement that is not met, according to each branch's optional distribution order. When some demand sites are not getting full coverage, this report is useful in understanding the magnitude of the shortage. This result is only available if the "Distribution Order" option has been turned on in Basic Parameters.
The percent of each demand site's requirement (adjusting for demand site losses, reuse and demand-side management savings) that is met, from 0% (no water delivered) to 100% (delivery of full requirement). The coverage report gives a quick assessment of how well demands are being met.
The percent of each demand site branch's requirement that is met, from 0% (no water delivered) to 100% (delivery of full requirement), according to each branch's optional distribution order. The coverage report gives a quick assessment of how well demands are being met. This result is only available if the "Distribution Order" option has been turned on in Basic Parameters.
The percent of the timesteps in which a demand site's demand was fully satisfied. For example, if a demand site has unmet demands in 6 months out of a 10-year scenario, the reliability would be (10 * 12 - 6) / (10 * 12) = 95%.
The mass balance of all water entering and leaving one or more demand sites or catchments. Inflows (from local and river supplies) are represented as positive amounts, outflows (either consumed or routed to wastewater treatment plants, rivers, groundwater nodes and other supplies) as negative amounts. Note: for catchments, because changes in storage (soil moisture, snow and ice) are not shown, the total inflow may not equal the total outflow.
The prescribed minimum flow requirement (given in units of a volumetric flux) for social or environmental purposes.
The amount of water supplied to flow requirements listed by destination.
The difference between the instream flow requirement and the amount actually delivered.
The ratio of the amount delivered divided by the flow requirement.
The percent of the timesteps in which a flow requirement's demand was fully satisfied. For example, if a flow requirement has unmet demands in 12 months out of a 10-year scenario, the reliability would be (10 * 12 - 12) / (10 * 12) = 90%.
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