SRF RUNOFF
OUTFLOW II
OUTFLOW III
OUTFLOW IV OUTFLOW V
QSUM
DISCHARGE
Figure 29. The links used to simulate discharge from the wa-
tershed outlet. Ghosts of SRF_RUNOFF, OUTFLOW_II,
OUTFLOW_III, OUTFLOW_IV, and OUTFLOW_V (the outputs
from SRFRNF, GROFF2, GROFF3, GROFF4, and GROFF5 re-
spectively) were placed in CHNLRTNG and linked to DIS-
CHARGE (the input to CHNLRTNG) with a connector. DIS-
CHARGE calculates the sum of the values in each of the ghosts
for each time interval to simulate discharge from the watershed
outlet.
SBS_STOR_&_FLOW_2 and CHNLRTNG represents the contribution of subsurface flow from zone
3 to discharge. The link between GDWTR_&_BASFLW_2 and CHNLRTNG represents the con-
tribution of baseflow from zone 3 to discharge.
Figure 29 shows that these sectors were linked by placing ghosts of SRF_RUNOFF (the output
from SRFRNF), OUTFLOW_II (the output from SBS_STOR_&_FLOW_1), OUTFLOW_III (the
output
from
GDWTR_&_BASFLW_1),
OUTFLOW_IV
(the
output
from
SBS_STOR_&_FLOW_2), and OUTFLOW_V (the output from GDWTR_&_BASFLW_2) in
CHNLRTNG and then linking those ghosts to DISCHARGE (the input to CHNLRTNG) with connec-
tors. DISCHARGE contains the sum of SRF_RUNOFF, OUTFLOW_II, OUTFLOW_III,
OUTFLOW_IV, and OUTFLOW_V (eq 65):
DISCHARGE = OUTFLOW_II + OUTFLOW_III +
OUTFLOW_IV + OUTFLOW_V + SRF_RUNOFF
(65)
RESULTS
The figures in this section will explain the differences and similarities between the outputs of the
Fortran version of GAWSER and Object-GAWSER. In the following text, all variables preceded by
the word "GAWSER" represent the Fortran version of GAWSER. All other variables represent Ob-
ject-GAWSER.
Results from the SNOMLT sector
Figure 30 shows that SWC and LAG GAWSER SWC (the Fortran version's estimate of SWC
lagged by one hour) are identical; therefore Object-GAWSER predicts SWC one hour later than the
Fortran version of GAWSER. The time difference may be explained by the numerical integration
method used by Object-GAWSER to calculate SWC. The time difference between Object-GAWSER
and the Fortran version of GAWSER's prediction of SWC is shown in further detail in Figure 31.
Figure 31 shows the behavior of SWC and GAWSER SWC (the Fortran version's estimate of SWC
not lagged by one hour). The scale of Figure 31 was increased show the difference between SWC and
GAWSER_SWC. SWC rises, levels off, and falls one hour later than GAWSER SWC.
Figure 32 explains the similarities and differences between LWC and LAG_GAWSER_LWC (the
Fortran version's estimate of LWC lagged by one hour). LWC and LAG_GAWSER_LWC are equiv
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