Assign a coefficients to dispatch J2000 discharge on TOPAGE segments

This function will assign a coefficients to dispatch J2000 or EROS discharge on TOPAGE segments using specific discharge hypothesis. Theses coefficients will be used in TNET_computeQ() and TNET_computeQlatSout() function.

Usage

TNETshape_computeCoefQcalc(path_segments, export_file, to_calc = c('up','down','sWS'), hydro_model = 'J2000')

Arguments

path_segments

string Path to the shapefile created by TNETshape_computeAreaDrain() with drained area and sub drained area of each segments.

export_file

string Path to the shapefile with results to create.

to_calc

vector of strings Vector with "up" to compute upstream area drain ratio, "down" to compute downstream area drain ratio and "sWS" to compute sub-watershed area ratio. By default, everything is calculated.

hydro_model

string Hydrological models used for the computation. By default, hydro_model = 'J2000'

Value

None

Details

This function will compute the coefficients used in TNET_computeQ() and TNET_computeQlatSout() in order to dispatch discharge data from the used hydrological model to the Topage river network. The computation are the following

For J2000 hydrological model

1 - For discharge dispatch

Used by TNET_computeQ()

\(RppAr\_v = \frac{\text{Area drain downstream of Topage segment}}{\text{Area drain downstream of J2000 reference segment}}\)

2 - For underground discharge

Used by TNET_computeQlatSout()

\(RppA\_BV = \frac{\text{Area of the subwatershed of Topage segment}}{\text{Area of the subwatershed of J2000 reference segment}}\)

For EROS hydrological model

1 - For discharge dispatch

Used by TNET_computeQ()

\(air\_strNFS = \frac{\text{Length of all upstream segments in the sub-watershed} + \text{Length of the segment}}{\text{Sum of all segments length in the sub-Watershed}}\)

\(air\_strNIS = \frac{\text{Length of all upstream segments in the sub-watershed}}{\text{Sum of all segments length in the sub-Watershed}}\)

2 - For underground discharge

Used by TNET_computeQlatSout()

\(air\_unit = \frac{\text{Length of the segment}}{\text{Sum of all segments length in the sub-Watershed}}\)

See also

TNETshape_computeAreaDrain(), TNETshape_computeUpstreamLength(), TNET_computeQ(), TNET_computeQlatSout()

Examples

## Run directly the function providing all info
TNETshape_computeCoefQcalc(path_segments = "path/to/segments.shp",
                           export_file = "path/to/exportFolder")
#> Error: Cannot open "path/to/segments.shp"; The file doesn't seem to exist.