Defines the topological sequence of catchments for phosphorus.
Format
A data frame with 5 variables:
HydroID
integer positive. Unique catchment identifier.
To_catch
integer. Unique identifier of the catchment to which the catchment goes. Note that for the outlet To_catch== -1.
Shreve
integer. this indicates the Shreve order of the topological sequence in the stream network.
LakeFrRet
fraction, 0-1. Lake retention fraction.
NrmLengthKm
double. Normalized length of catchment reach.