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Reservoir Target File - Monthly (*.tar or *.tam)

The reservoir target file contains monthly targets for a reservoir's minimum and maximum contents. Data should be entered in the order of the structure (*.res) file. Positive maximum contents are end of month targets. Negative values are forecasted inflows. When forecasted inflows are provided the monthly target is estimated as follows:


\(~\text{Target} (im)\) is the reservoir target.

\(~\text{Current Storage} (im)\) is the total reservoir storage in month im.

\(~\text{Forecast} (im)\) is the total inflow for the remaining forecast period. Note for a linear forecast this term is often set to -1.

\(~\text{End Target}\) is the target at the end of the forecast period.

\(~\text{Months Remaining}\) is the total of all months remaining to be forecasted in a year.

For example, if the forecast data for April, May, June, July is 1,000 AF, -1, -1, and 700 AF and the Current Storage in April = 1000 AF, then the Target in May is: 1000 - (1000 - 1 -700)/3 = 900.

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, 10x, f8.2)
2-1 iyr Year
2-2 cistat Reservoir station ID
2-3 conmin(1-12,1) Minimum reservoir targets (AF) for months 1-12
Time Series Data
3-1 iyr Year
3-2 xista2 Reservoir station ID
3-3 targetx(1-12,1) Positive values equal the maximum reservoir targets (AF) by month. Negative values equal the forecasted inflow for future months

Repeat for the number of stations numres

Repeat for each year of the simulation