Table 16. Description of the variables considered in Sector
Linkages.
Variable
Description
Units
BTM_LYR
bottom soil layer
mm
INFLOW_5
inflow to linear reservoir
mm/h
m3/s
INFLOW_II
inflow to subsurface storage
LIQ_WTR_REL
liquid water released from the snowpack
mm/h
m3/s
OUTFLOW_II
outflow from subsurface storage in zone two
m3/s
OUTFLOW_III
outflow from ground water storage in zone two
m3/s
OUTFLOW _IV
outflow from subsurface storage in zone three
OUTFLOW_V
outflow from groundwater storage in zone three
m3/s
DISCHARGE
discharge from subwatershed outlet
m3/s
I
percolation conversion factor
P
percolation from the bottom soil soil layer
mm/h
RAINa
adjusted rainfall
mm/h
RI_1
rainfall/snowmelt input
mm/h
m3/s
SRF_RUNOFF
total surface runoff from the watershed
SUBS_STOR
subsurface storage
mm
SURF1w
weighted surface runoff from zone 1
mm/h
SURF2w
weighted surface runoff from zone 2
mm/h
SURF3w
weighted surface runoff from zone 3
mm/h
SURF4w
weighted surface runoff from zone 4
mm/h
SURF5w
weighted surface runoff from zone 5
mm/h
If
(BARE = 0)
then
RI_1 = LIQ_WTR_REL
(BARE > 0)
RI_1 = ( RAINa (1-BARE) + LIQ_WTR_REL BARE ). (63)
If
then
Figure 26 shows the linkages between RAINs and RAINa; RAINa and RI_1; and
LIQ_WTR_REL and RI_1. For simplification, only the main objects are shown from GROFF1.
SNOMLT is also linked to GROFF2, GROFF3, GROFF4, and GROFF5 just as SNOMLT is
linked to GROFF1. For simplification, these linkages will not be described because they are de-
signed identically to the linkages between SNOMLT and GROFF1.
GROFF1, GROFF2, GROFF3, GROFF4, GROFF5 were linked to SRFRNF to simulate the over-
land flow of water in a watershed (GROFF1, GROFF2, GROFF3, GROFF4, GROFF5 calculate the
amount of runoff produced by a watershed and SRFRNF simulates the routing of runoff to the water-
shed outlet). Linkages between sectors were made by placing a ghost of SURF1w, SURF2w,
SURF3w, SURF4w, and SURF5w from GROFF1, GROFF2, GROFF3, GROFF4, GROFF5 re-
spectively within SRFRNF. Each ghost was then linked to INFLOW_5 (the input to SRFRNF) with
a connector. The equation within INFLOW_5 sums the values within SURF1w, SURF2w, SURF3w,
SURF4w, and SURF5w (eq 64):
INFLOW_5 = SURF1w + SURF2w + SURF3w + SURF4w + SURF5w.
(64)
Figure 27 shows the linkage between GROFF1, GROFF2, GROFF3, GROFF4, GROFF5, and
SRFRNF. For simplification, only the linkages among the sectors were shown.
RAINa
LIQ WTR REL
Figure 26. The two linkages between SNOMLT and GROFF1.
LIQ_WTR_REL and RAINs are ghosts of LIQ_WTR_REL and
RI 1
RAINs
RAINs from SNOMLT. These two ghosts are connected to objects in
GROFF1 with connectors. The first linkage between SNOMLT and
GROFF1 is represented by the connection between RAINs and
RAINa. The second linkage between SNOMLT and GROFF1 is rep-
resented by the connection between LIQ_WTR_REL and RI_1.
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