AASHGS_Execute: A function to execute the ASHGS model
In SGronsdahl/AASHGS: At-a-station hydraulic geometry simulator

Description Usage Arguments Value

View source: R/AASHGS_Execute.R

This function executes the at-a-station hydraulic geometry simulator, which is a method of determining weighted usable area. For more information about the theoretical component of this model see: McParland et al. (2016). At-a-station hydrualic geometry simulator. River Res. Applic. 32: 399 - 410. This function requires that the 'birk' package is loaded in your directory.

1 2	AASHGS_Execute(S, wb, db, db_max, max_Q, d_curve, v_curve, s_curve = NULL, D84, gsd = NULL)

`S`	channel gradient (m/m)
`wb`	reach averaged bankfull width (m).
`db`	reach averaged bankfull depth (m).
`db_max`	Defaults to NULL. reach averaged maximum bankfull depth (m). Specifying db_max is preferred.
`max_Q`	maximum discharge (m3/s) to simualted WUA for. Defaults to simulated bankfull dsicharge.
`d_curve`	A dataframe of depth suitability curves with four columns as follows: column 1: "species" - This identified species (eg "species"); column 2: "life_stage" - This identifies life stage (eg "fry"); column 3: "depth" (m); column 4: "suit" (0 - 1)
`v_curve`	A dataframe of velocity suitability curves with four columns as follows: column 1: "species" - This identified species (eg "species"); column 2: "life_stage" - This identifies life stage (eg "fry"); column 3: "velocity" (m/s); column 4: "suit" (0 - 1)
`s_curve`	Defaults to NULL> A dataframe of substrate suitability curves with five columns as follows: column 1: "species" - This identified species (eg "species"); column 2: "life_stage" - This identifies life stage (eg "fry"); column 3: "lower" (mm) - This identifies the lower limit of each class; column 4: "upper" (mm) - This identifies the upper limit of each class; column 5: "suit" (0 - 1)
`D84`	grain size (mm)
`gsd`	Defaults to NULL. A dataframe of the grain size distribution with one column: individual grain sizes (mm). Intended for use with output of the Find_D84 function.