River Gage File (*.rig)
The river gage file is used to describe the name and location of nodes where gaged streamflows are located. Gaged streamflows have a 
historical time series in the historical stream flow file (*.rih). This file is part of a future enhancement that clearly separates 
data in the river station file (*.ris) into gaged and non gaged flow locations. Currently this file is used by the daily baseflow module 
only. This file is read by subroutine VIRIN.
| Row-data | Variable | Description | 
|---|---|---|
| Station Data | ||
| 1 | Format (a12, a24, a12, 1x, a12) | |
| 1-1 | crunid(1) | Stream Gage station ID | 
| 1-2 | runnam(i,1) | Station name | 
| 1-3 | cgoto(1) | River node with a stream gage | 
| 1-4 | crunidy(1) | Daily Stream station ID (for daily model only). See Section 7.17 for a detailed discussion. | 
| Enter Stream station ID ( crunid) if daily data will be provided for this station. Monthly data controls. | ||
| Enter another stream station ID to use the daily distribution of another but weight values by the monthly total in *.rim file. Monthly data controls. | ||
| Enter 0 to use the average daily value from the monthly total in the *.rim file. Monthly data controls. | ||
| Enter 3 to use the daily value provided in the daily river (*.rid) file. Daily data controls. | ||
| Enter 4 to use a daily pattern developed by connecting the midpoints of monthly data. Monthly data controls. | 
Repeat for the number of stream gages