reachRouting: channel routing computation

Description

function for flood routing using parameteric Muskingum and muskingum-cunge techniques.

Usage

reachRouting(inflow,routingMethod,
             routingParams,simulation)

Arguments

inflow

a vector of runoff (cms) presenting a runoff event generated by excess rainfall computed by loss methods or an object inherited from any of the following classes :transform ; reachRouting ; reservoirRouting.

routingMethod

a string: the type of channel routing method: "muskingum" or "muskingumcunge". default to "muskingum"

routingParams

a list : parameters associated to the routingMethod:

k and x for "muskingum",
bedWith (m), sideSlope (m/m), channelSlope (m/m), manningRoughness, riverLength (Km) for "muskingumcunge"

simulation

a list of simulation time and dates as below:

start: the date which simulation starts, must be in 'YYYY-MM-DD' format
start: the date which simulation ends, must be in 'YYYY-MM-DD' format
by: the interval of each steps in seconds

Value

a data.frame: including inflow time series routing resaults and simulation details

References

Chow, V. T., Maidment, D. R., & Mays, L. W. (1988). Applied hydrology.

Examples

Run this code

# NOT RUN {
inflow<-c(100,500,1500,2500,5000,11000,22000,28000,28500,26000,
          22000,17500,14000,10000,7000,4500,2500,1500,1000,500,100)
routingMethod<-c("muskingum","muskingumcunge")
routingParams<-list(k=3,x=0.2,bedWith=50,sideSlope=2,channelSlope=0.0001,
                    manningRoughness=0.01,riverLength=100)
simulation<-list(start='2000-01-01',end='2000-01-04',by=3600)

reachRouting(inflow,routingMethod[1],routingParams,simulation)
reachRouting(inflow,routingMethod[2],routingParams,simulation)
# }