14
12
LWCAP
10
8
6
LWC
4
LAG GAWSER LWC
2
0
10
20
30
40
50
60
70
80
90
Time (h)
Figure 32. Liquid water content of the snowpack. LWC and LAG_GAWSER_LWC
(the Fortran prediction of LWC lagged by one hour) match until 43 hours when
LWC exceeds LAG_GAWSER_LWC. LWC exceeds LAG_GAWSER_LWC because
Object-GAWSER's prediction of the liquid water holding capacity of the snowpack
(LWCAP) is larger than the Fortran version's prediction of LWCAP. Object-
GAWSER's prediction of LWCAP is too large because it is calculated using the
value of SDEP, which is larger than the Fortran's prediction of SDEP (see SDEP
and GAWSER DEPTH in Fig. 33). LWC and LAG_GAWSER_LWC converge by
the end of the simulation period because SDEP and GAWSER_DEPTH converge
by the end of the simulation period. The one-hour difference between LWC and
LAG_GAWSER_LWC is due to computational differences between Object-
GAWSER and the Fortran version of GAWSER.
0.40
10
0.35
5
TEMPs
0.30
0
RHO
0.25
5
0.20
10
0
10
20
30
40
50
60
70
80
90
Time (h)
Figure 33. Behavior of RHO relative to TEMPs. RHO gradually increases from
zero to 26 hours and from 50 hours to 87 hours. RHO significantly increases and
then levels off from 26 to 50 hours when TEMPs experiences a large fluctuation.
RHO significantly increases again beginning at 87 hours when TEMPs drops be-
low zero. The coincidental changes in RHO and TEMPs show that RHO is sensi-
tive to the behavior of TEMPs.
43
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