Irrigation Parameter Yearly Data File - Annual (*.ipy)
The annual CU time series file contains information required to perform calculations using a variable efficiency approach. It is only used when
the control file (*.ctl) variable itsfile >= 1. It is formatted exactly the same as the annual time series file used by the consumptive use model
(StateCU). The current standard is to provide four water supply irrigation method combinations (Surface Supply Flood Irrigation, Surface Supply
Sprinkler Irrigation, Ground Supply Flood Irrigation and Ground Supply Sprinkler Irrigation). For a description of the old (*.ipy file) format, which
StateMod still supports, see Section 9.0 - Discontinued but Supported File Formats.
Because multiple input file formats may be provided it is recommended the following string be provided near the top of the file before any
data: # FileFormatVersion 2. If the format version indicator is not provided StateMod will try to read the file and try to determine the appropriate
file type.
| 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 ('NA') |
| 1-6 | cyr | Year type |
| 'CYR' = calendar year (1-12) | ||
| 'WYR' = water year (10-9) | ||
| 'IYR' = irrigation year (11-10) | ||
| Time Series Data | ||
| 2 | Format (i4,1x,a12,3f6.0,2f8.0,f12.0,f3.0,f8.0) | |
| 2-1 | idly | Year |
| 2-2 | ID | Structure ID |
| 2-3 | ceff | Conveyance efficiency (decimal) |
| 2-4 | feff | Maximum flood efficiency (decimal) |
| 2-5 | seff | Maximum sprinkler efficiency (decimal) |
| 2-6 | AcreSF | Acres with a Surface Water Supply and Flood Irrigation |
| 2-7 | AreaSS | Acres with a Surface Water Supply and Sprinkler Irrigation |
| 2-6 | AcreGF | Acres with a Ground Water Supply and Flood Irrigation |
| 2-7 | AreaG | Acres with a Ground Water Supply and Flood Irrigation |
| 2-8 | mprate | Maximum pumping rate (af/mo) |
| 2-9 | gwmode | Ground water use mode |
| 1 = maximum supply mode | ||
| 2 = mutual ditch supply mode | ||
| 2-10 | areax | Total Irrigated acreage for year idly (ac) |