0.40
0.35
0.30
GAWSER RHO
RHO
0.25
THRO I
0.20
0
10
20
30
40
50
60
70
80
90
Time (h)
Figure 34. Behavior of the density of the snowpack. RHO and TRHO_I are two of
four ways snowpack density is predicted. RHO and TRHO_I match GAWSER_RHO
from zero to seven hours. RHO is closer to GAWSER_RHO than TRHO_I from 26 to
47 hours and from 87 to 90 hours. TRHO_I is closer to GAWSER_RHO than RHO
from seven to 26 hours and from 47 to 87 hours.
10
300
TEMPs
5
200
0
SDEP
GAWSER
DEPTH
100
5
10
0
10
20
30
40
50
60
70
80
90
Time (h)
Figure 35. Behavior of SDEP and GAWSER DEPTH relative to TEMPs. SDEP and
GAWSER DEPTH exhibit the same pattern throughout the entire simulation period,
but differ in magnitude for almost the entire simulation period. The difference in mag-
nitude is due to the difference in Object-GAWSER and the Fortran version's prediction
of snowpack density because SDEP is calculated using the snowpack density. Figure
34 compares the Object-GAWSER and Fortan predictions of snowpack density. A
large fluctuation in TEMPs beginning at 23 hours is coincidental with a noticeable
divergence between SDEP and GAWSER_DEPTH.
when they begin to diverge as SDEP remains constant and GAWSER_DEPTH decreases. The diver-
gence between SDEP and GAWSER_DEPTH at 23 hours is coincidental with a large change in
TEMPs. At 23 hours, TEMPs rapidly decreases below 0C and then rapidly increases above 0C.
SDEP and GAWSER_DEPTH begin converging after 55 hours and are identical shortly before the
end of the simulation.
44
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