9670

• UCREFRP Catalog Number: 9670
• Author: Pitlick, J.
• Title: Channel Monitoring To Evaluate Geomorphic Changes On The Main Stem Of The Colorado River.
• USFW Year: n.d.
• USFW - Doc Type: Boulder, CO.
• Copyright Material: NO

Figure 18 shows three similar plots displaying time-series trends in discharge and the
percentage of sand in suspended sediment samples. A consistent, yet somewhat different pattern
emerges here: it is evident that the peak in sand concentration occurs 2-3 weeks after the peak in
water discharge (Fig. 18). The trends at the Gunnison River gauge and State Line gauge are not
as well defined, but consistent with the observations at the Cameo gauge.
600
Gunnison River nr. Grand Junction
1977-98
,4 400 n = 115
E
Q (curs)
rn
t % sand
y 200-
-100
80
0-
60

40 5
`
m
a
20

0
FEB APR JUN AUG OCT DEC
40