WSP04354

• 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

GJu437

///~ Next
as ,/ ~ No stream
~NodeE7~

/

Next subreach

Define the TRF allhe
upstream node.

Icdicales . known quantity in
the subreacb cornputalions.
/ I

/ Upstream nod~ y, ~R_K1
,< ~nodeA1,B,C. "~es TRFattheupstreamnade~ I
- D. or E? / SS K2 (TRF at the upstream I
~.... ,/// aging station) from the streami
'--....,,/ segment campuletlans (fig. 4).1
No --
SR_K1

TRF at the upstream node ~
ISR_U3 (TRF at the downstream
node) from the previous
subreach computation.

[-- -~
Define the NSF at the
upstream node.

--.-
/.

///;;;'trea~Na
<. =nodeA'\,6,
"~c, D, or E7 /

~...../ computation.
IYes
'f SR K2
/ ~~SFattheupstreamnadO~-
(discharge at station 071 05500)
/ Upstream node Yes + (native return flow
'----- ~ node A 17 /' dischaf1)ed at. the Co\Qrado
'----- /' Spnngs
'----- / WWfF) + (NSF loss or gain
~'" / between nodes A and A1).
No Explanation in text.
SR K2
I N-SF at the upstream node ~ l
I SS_K3 (NSF at the upstrea';' I
~ging station) from the stream~
segment computations (fig. 4).1
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SR K3
Define the total subreach NSF
diversion = sum of the
diversions 10r all ditches
I within the subreach.

SR_~_]
r Define the subreach channel
length (included in the
program code),

Downstre~
No ~ode at node />
B,C.D,arEY

x:
/ ~
_ ~ ,~amPleted 14 _______
I Write ClutPut~ subreach '>
..;~ ~ computationS?//
lndicaleS an unkllOWD quantity mal ill ~ /
<omp"'''' in"" ,"b~h 'omp"~tio"'. "(
SR U3
I - Compute TRF at the l
~ownstream node:::: SA K1 I
(TRF at the upstream node)
+ SR_U2 (result from the
previous computation step). J

PROGRAM STOP

SR_K2

NSF at the upstream node =
SR_U1 (NSF at the
downstream node) from the
previous subreach

NSF = Native streamflow.

TRF = Transmountain retwn flow.

WWfF = Wastewater-treatment
facility.

SR_U2.

~ompute the net subreach
transit loss = (sum of bank-
storage loss and gain) + (sum
of channel-storage loss and
gain) + (evaporation loss).
Elqllanation "' text.

SR_:-I

,-- Compute Ihe NSF a\ the "j
downstream node = sum of
the results from each of the two
previous computation steps.

~__J :=I
Camputa the subreach NSF '
. loss or gain = SR K4 I
(subreach channe/length) x
SS_U1 [stream-segment NSF
11058 or gain (fig. 4)). NSF loss I
or gain = 0 for subreach 1 ~

Compute the NSF to route from
the upstream node to the
downstream node = SR K2 I
(NSF at the upstream node) -
SR_K3 (total NSF diversion
in the subreach).

Figure 5. Subreach computations of the Fountain Creek transit-loss accounting program.

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DESCRtPTlON OF THE ORIGINAL TRANSIT -LOSS ACCOUNTING PROGRAM 11