WSP12125

• File Number: 8102
• Description: Arkansas River Hydrology
• State: CO
• Basin: Arkansas
• Water Division: 2
• Date: 1/1/1997
• Author: USGS
• Title: Description of the Program Changes - 1989-97- and a User Manual for a Transit-Loss Accounting Program Applied to Fountain Creek Between Colorado Springs and the Arkansas River-Colorado
• Water Supply Pro - Doc Type: Report/Study

OJfl453

steps), rather than the TRF based on the initial
assumption (quantity b). (3) The program continues to
repeat the stream-segment and subreach computations
until there is less than a I-percent difference (conver-
gence) between the newly computed TRF at the end of
the downstream subreach within the stream segment
and the previously computed TRF, which is used to
initiate each of the repeated stream-segment computa-
tions.
The fourth page of the revised output (table 5) is
similar to the second page of the output developed as
part of the 1991-92 program changes (table 3). The
quantities listed are used by the CCS and the water
commissioners in the administration of the TRF use
and reuse program.

TRANSIT-LOSS ACCOUNTING
PROGRAM FILES

Before the operation of the current (1997)
version of the accounting program can be described,
infonnation about the input and output files used by
the program is needed. The accounting program
resides on the USGS computer system that contains
the streamflow data base; a master directory named
transit_loss (fig. 7) has been establ ished on the
computer for the program users. The master directory
consists of a three-level system of subordinate directo-
ries and files; the contents of the nexltrloss, trloss,
and meanday directories and most files are described
in the following sections. There also may be other
directories and files in the transit_loss master direc-
tory, but they are not described in this report. The
trans/Closs master directory contains the following
files (fig. 7):

daily.mean---{;ontains the daily mean discharges at
the six gaging stations used in the
accounting program (see the
"Streamflow-Gaging Station Network
on Fountain Creek" section,
p.I2-14).

.',

,..

revised.mean---{;ontains the revised daily mean
discharges at the six gaging stations
used in the accounting program (see
"Streamflow-Gaging Station Network
on Fountain Creek" section,
p. 12-14).

trl.cpl---{;(lntains the computer script code
that. when executed, attaches to the
nexttrloss directory and initiates the
accounting program.

Contents of the Nexttrloss Directory

The nultrloss directory (fig. 7) contains all the
files that are either read from for input, written to for
output, or both. Files and their contents that must exist
prior to running the accounting program include:

acct.fil---{;ontains data regarding the purchased
and used TRF diversion quantities for
each ditch. The file may be rewritten
during a program run depending on
the program option.

back] .fil---{;ontains the data necessary to rerun
the accounting program for the last
day of computation. The file contains
the contents of the cmpJecov.fil,
cSJecov.fil, divers.fil, andfaJecov.fil
files for the last computation;
back] .fil is read and rewritten during
each program run.

back2.fil---{;ontains the data necessary to rerun
the accounting program for the day
prior to the last day of computation.
The file contains the contents of the
cmpJecoY.fil, cSJecov.fil, divers.fil,
and faJecov.fi1 files for the day prior
to the last computation; back2.fil is
read and rewritten during each
program run.

.:. I

'.,

,',

TRANStT-LOSS ACCOUNTtNG PROGRAM FILES 27