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

GJa~37

en
w
i=
i=
z
<l:
=>
o
z
3:
o
z
:.::
w
z
iI:
w
o

SR K3
Define the total subreach NSFl
I diversion = sum O:tJfth9
diversions 101 all ditches
I within the subreach.

SR_K4 J_
[---
Define the sub reach channel
length (included in the
program code).

///~'-. Next
as ./ ~ No stream
~NOdeE?~

Next sUbreacX

PROGRAM STOP

SR_K2

rNSF at the upstream node =
I ... SR_U1 (NSF a\ \00
downstream node) from the
previous subreach

NSF = Native streamflow.

TRF = Transmountain retuJ1l flow.

WWTF = Wastewater-U'eatInet1l
faciliry.

SR_U2.
~ompute the net subreach
transit loss = (sum of bank-
storage loss and gain) + (sum
Lf channel-storage loss and J
gain) + (evaporation loss).
Elqllana\ion "' text.
SR_:-----r-
r---~ -,
, Compule the NSF at \I'1e J
downstream node = sum of
the results from each of the two
previous computa1ioo steps.

r-=--) ~
Compute the subreach NSF '
. loss or gain = SR K4 I
(subreech channe/length) x
SS_U1 [stream-segmen\ NSF
11055 or gain (fig. 4)). NSF loss I
or gain = 0 for subreach 1 ~

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

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

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

-t-
/"

/.--/c;.trea~NO
< =nodeA'\,6,
'~c, D.orE? /

~..../ computation.
IYes
... SR K2
/ ~~NSF at \he upstream nOd9,-
(discharge at station 071 05500)
/ Upstream node Yes + (native return flow
'~ = node A 1? / dischal\led aHoo Colorado '
~ / Spnngs
~ / WNTF) + (NSF loss or gain
--.3_... " between nodes A and A1).
No Ex?'aar.a\~ \0 \ext
SR_K2
I NSF a\ the upstream node = l
I SS_K3 (NSF at the upstrea';' I
~ging station) from the stream~
segment computations (fig. 4).1
__ _~_--J

en
w
f=
i=
z
<(
::l
o
Z
~
o
z
:.::
z
=>
W
l-
=>
0-
::;
o
()

DESCRIPTlON OF THE ORIGINAL TRANSIT-LOSS ACCOUNTlNG PROGRAM

'.:~'. ,'.

:;"

....~

':..

11