Rain Gauge Network
Rain Gauge Network
Rain Gauge Network
Volume, V (m3)
SAMPLE PROBLEM
N=(
where:
N = optimal number of stations
Cv = coefficient of variation of the rainfall values at the
existing m stations (in percent)
ε = allowable degree of error in the estimate of the mean
rainfall
ADEQUACY OF RAINGAUGE STATIONS
where:
σ m-1 = standard deviation
P = mean precipitation
Pi = precipitation magnitude in the ith section
m = existing number of stations
SAMPLE PROBLEM
Station A B C D E F