upstreamconnectivity {rivernet}

Calculates connectivity from outlet to upstream reaches

Description

Calculates connectivity from the outlet to upstream reaches, in particular to stream order 1 reaches. Criteria can be provided for reaches as well as nodes.

Usage

upstreamconnectivity(x,...)

Arguments

x

Object of class "rivernet" e.g. read by the function rivernet.read.

...

.

Value

List with the following entries:
paths.reachable: List of numeric vectors specifying the indices of the reaches of a reachable path. Note that this is a subset of the reaches given in the same component of the element pahts of the river network.
firstorder.reachable: Vector of logicals indicating if the corresponding paths given above reach first order rivers. fract.firstorder.reachable: fraction of first order segments that can be reached (under the conditions specified by crit.reach, crit.node and thresh.length).
streamorder.reachable: vector of reachable rivers of order 1, 2, etc.

See Also

rivernet.read, mean.rivernet, adjacentreaches.rivernet,
utility.