Historical Reservoir Content File - Daily (*.eoy)
The daily historic reservoir content file contains reservoir contents at the end of the day or a daily pattern 
for each day of the simulation period. Data should be entered in the order of the structure (*.res) file. To 
simplify the preparation of daily data, StateMod allows the user to provide daily data or a pattern to be used 
with monthly data. When the reservoir station variable cresidy is set to 3 the reservoir station variable cresid 
is used to indicate daily data controls and any monthly data provided in the monthly direct flow demand file (*.tar) 
is ignored. When the reservoir station variable cresidy is set to any ID including its own (cresid) StateMod uses the 
daily data as a pattern to estimate daily data using the same approach described under daily streamflow data (Section 4.36).
This file is only required if the model is operated in a daily baseflow mode. Data can be entered with stations entered 
in any order. This file is read by subroutine DAYDATA.
| 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 ('AF') | 
| 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, i4, 1x, a12, 31f8.2, f8.0) | |
| 2-1 | iy | Year | 
| 2-2 | im | Month | 
| 2-2 | cresidx | Daily station ID | 
| 2-3 | targex2(1-31) | Daily reservoir target (acft) or pattern for days 1-31 | 
Repeat for the number of stations numres  
Repeat for each year of the simulation