abcdQest: ABCD conceptual rainfall - runoff simulation model

In tanerumit/hydrosystems: Tools for hydrologic and water systems modeling & analysis

Description

abcd_qest() returns monthly or daily streamflow time-series The ABCD water balance model is a simple hydrologic model for simulating streamflow in response to precipitation and potential evapotranspiration developed by Thomas (1981). The model is comprised of two storage compartmens: soil moisture and groundwater. The soil moisture gains water from precipitation and loses water to evapotranspiration (ET), surface runoff and groundwater recharge. The groundwater compartment gains water from recharge and loses water as discharge. The total streamflow is the sum of surface runoff from the soil moisture and groundwater discharge. The model has four parameters: a, b, c, a, d.

• a ranges between 0 and 1.

• b ranges between 260 - 1900 (Vandewiele et al. 1992).

• c ranges between 0 - 1.

• d ranges between 0 - 1.

Usage

abcdQest(parm, P, PE, S_ini, G_ini, print.all = FALSE)

Arguments

parm	abcd model parameters
P	a vector of precipitation time-series (mm)
PE	a vector of potential evaporation time-series (mm)
S_ini	is the initial soil moisture (mm)
G_ini	is the initial groundwater storage (mm)

Value

the output is a time-series of run-off values

tanerumit/hydrosystems documentation built on May 31, 2019, 2:57 a.m.