a
100
80
60
40
% Basin with Snowcover
20
0
80
100
120
140
Day of Year
ge3500m (20 Pct FS Threshold)
3000 to 3500m (20 Pct FS Threshold)
2500 to 3000m (20 Pct FS Threshold)
160
180
200
220
b
100
80
60
40
% Basin with Snowcover
20
0
c
100
80
60
40
% Basin with Snowcover
20
0
80
100
120
140
Day of Year
160
180
200
220
80
100
120
140
Day of Year
160
180
200
220
2009
2008
2007
2006
2005
2004
2003
2002
2001
2000
2009
2008
2007
2006
2005
2004
2003
2002
2001
2000
2009
2008
2007
2006
2005
2004
2003
2002
2001
2000
Fig. 3.9 Snow cover results from MODIS depletion of snow cover over several years. The curves
are derived from the MODIS cloud-gap-filled (CGP) 500 m resolution product derived from the
fractional snow cover product, MOD10A1, in the Wind River Range, Wyoming. Breaks are
evident in the plots in some years due to sporadic mission MODIS data. (a) Elevation greater
than or equal to 3,500 m; (b) Elevation from 3,000 to 3,500 m; (c) Elevation from 2,500 to 3,000 m
(Figure 2 in Hall et al. 2012)
44
V.V. Salomonson and X. Xiong