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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