Well Demand File - Monthly (*.wem)
The monthly well demand file contains demands for well structures for each month of the simulation period. Data may be entered in any order
(i.e. its order is independent of the structure file). Monthly data is required when the diversion station variable idvcom is set to 1 (monthly
total demand) or 3 (monthly irrigation water requirement). Note when a well structure is tied to a diversion the total demand is provided in the
direct diversion station file and no monthly well demand data is required. This approach should have the control file (*.ctl) variable icondem set
to 6. See Section 7.4.7 for a discussion of various approaches available for specifying demand data; demands may be specified as a total at the headgate
or as a consumptive irrigation water requirement at the farm. This file is read by subroutine MDAINP.
| Row-data | Variable | Description |
|---|---|---|
| Control Data | ||
| 1 | Format (i5,1x,i4,5x,i5,1x,i4,a5,a5) | |
| 1-1 | ibm | Beginning month of data (e.g. 1 = Jan) |
| 1-2 | iby | Beginning year of data (e.g. 1975) |
| 1-3 | iem | Ending month of data |
| 1-4 | iey | Ending year of data |
| 1-5 | cunit | Units of data ('ACFT' or 'CFS') |
| 1-6 | cyr | Year type |
| 'CYR' = calendar year (1-12) | ||
| 'WYR' = water year (10-9) | ||
| 'IYR' = irrigation year (11-12) | ||
| Time Series Data | ||
| 2 | Format (i4, 1x, a12, 12f8.0) | |
| 2-1 | idyr | Year |
| 2-2 | cistatw | Demand station ID |
| 2-3 | divermw(1-12,1) | Demands (AF) for months 1-12 |
Repeat for the number of stations numdivw
Repeat for each year of the simulation