WSP05604 - Laserfiche WebLink

Home Browse Search

80 GRAIN-SIZE EVOLUTION DURING FLOODS 0,016 -,--, -,--,-- I , I 0,014 --0--- Day I (n = 8) _- Day 2 (n=4) 0,012 ---0--- Day 3 (n = 8) 0.010 . Day4 In = 4) ----{;;- Day 5 (n = B) 0,008 ... Day 6 (n = S) 0,006 ---<>-- Day 7 (n = 4) 0.004 0.002 0,016 ~ 0,014 --0--- Day 1 (n = B) 0 ---0--- Day 3 (n = B) 0 0.012 . Day4In=B) G 0.010 ----{S- Day 5 (n = B) <:: .2 0,008 ... Day 6 In = 8) '@ e Day 7 (n = 7) C 0.006 OJ 0 <:: 0.004 0 (.) 0.002 0,016 0,014 . Day 2 (n = 2 verticals) 0.012 ---0--- Day 3 (n = 2 verticals) . Day 4 (n = 2 verticals) 0,010 ----{S- Day 5 (n = 2 verticals) 0.008 ... Day 6 (n = 2 verticals) e Day 7 (n = 2 verticals) 0.006 0,004 0,002 0,000 0,2 2 0,1 0,5 1 Grain Size (mm) Figure 4. (A) Daily mean concentrations by size class of (he suspended sand depicted in Figure 3a measured with the p- 61 sampler al the Grand Canyon gage. The number of samples in each spalially averaged measurement is indicated by n in the legend. The thick vertical lines indIcate the median g.rain sizes for each day~ during.lhe 7 days of high discharge, the median size of the suspended sand increased from 0.14 to 0.21 mm. (8) Daily mean concentralions by size class of the suspended sand depicted in Figure 3a measured with the 0-74 sampler al the 122.mile eddy sile During the 7 days of high discharge. Ihe median size of [he su~pend~d sand in Ihe eddy increased from 0.11 [00.16 mm. (C) Daily mean concenlralions by size class of [he suspended s:md me::Jsur~d with [he P-61 sampler al sla[ions 245 and 325 at Ihe Nalional Canyon gage; see Table 2 for a descrlptiun of [he dala anlllysis. The number uf verticals in each spatially averaged measurement is indicaled by n In the legend. During lhl: days 2 through 7 of the 7 days of high discharge. the median size of Ihe suspended sand increased from 0.1 3 to 0.16 mm; samples were nOI col1ccled on day I of the flood al the National Omyon gage.