FLOOD00764

• County: Statewide
• Community: Nationwide
• Title: Use of Extreme Value Theory in Estimating Flood Peaks from Mixed Populations
• Date: 2/1/1980
• Prepared By: Utah State University Water Research Laboratory
• Floodplain - Doc Type: Educational/Technical/Reference Information

Table 3. Mean of the absolute relative deviations.
Pearson Type III log Pearson Type III F3(x)
Station
Ha Ca lOa H C 10 H C 10
bB24 1.4 1./ 2.1 1.8 1.7 2.1 1.6 1.4 1.6
hE60 3.6 4.0 4.9 3.7 3.5 4.3 7.5 5.4 5.4
1B06 3.4 2.9 3.4 3.3 3.8 4.7 7.4 7.4 8.3
BF40 3.6 4.2 4.2 3.8 4.7 4.8 7.7 7.8 8.4
BE38 3.1 2.9 2.4 2.5 2.4 2.4 2.7 2.1 3.9
BF19 3.5 4.0 4.0 3.5 4.1 4.1 3.4 3.9 4.0
CF25 2.8 2.9 3.3 3.3 3.3 3.6 7.4 6.1 6.5
mE19 2.7 2.2 3.4 2.5 2.1 3.3 3.4 2.8 3.8
jE792 7.6 5.8 6.1 6.2 5.1 4.8 6.4 6.3 6.8
HOD 2.9 4.1 5.9 4.2 5.9 7.7 15.8 17.1 15.5
kF62 4.8 4.5 4.5 4.8 5.8 5.8 10.4 11.3 11. 3
kF53 6.6 4.6 6.8 6.6 4.8 8.5 13.7 1l.2 14.5
hE88a 1.4 1.8 2.8 1.7 2.5 3.5 1.8 2.3 2.5
jF50a 4.4 3.6 4.4 3.8 3.4 4.2 4.2 4.4 5.4
aH = Hazen Formula
C . Chegodayev Formula
10 . Weibull Formula
Table 4. Mean of the quadratic deviations.
Pearson Type III log Pearson Type III F3 (x)
Staticm
Ha Ca lOa H C 10 H C 10
bB24 2.9 4.1 9.4 4.3 5.1 1l.2 5.0 3.4 4.6
hE60 13.4 17.6 32.3 18.9 20.8 41.3 101.0 56.9 56.9
1B06 20.4 21.2 28.2 24.0 32.1 43.6 87.7 95.8 121.1
BF40 18.0 21.9 23.7 21. 9 27.7 30.9 75.7 80.1 91.4
BE38 16.2 10.2 7.0 11.0 7.1 8.7 9.6 8.1 20.9
BF19 14.5 17.7 19.7 15.7 19.6 22.2 14.0 17.2 19.3
CF25 14.2 15.2 16.0 17.6 18.4 20.1 95.1 72.45 77 .2
mE19 10.7 6.6 2n.7 10.6 5.8 22.7 14.2 10.7 19.8
jE792 81.4 47.8 49.5 47.6 33.1 33.7 59.4 63.6 72.9
iFOO 11. 4 19.2 40.9 29.2 45.1 72.8 297.0 351.0 228.9
kF62 23.9 20.7 21.7 26.0 34.5 35.8 122.7 157.2 163.6
kF53 81.3 41.3 82.0 55.6 26.8 122.8 312.0 192.4 380.4
hE88a 2.6 4.5 11. 5 4.4 7.6 16.5 4.2 6.9 8.2
jF50a 31. 7 13.8 21. 7 21. 7 13.3 22.2 22.7 24.1 37.1
aH = Hazen Formula
C = Chegodayev Formula
W = Weibull Formula

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