Land-use pollutant buildup and washoff calculations. More...

#include <math.h>
#include <string.h>
#include "headers.h"

Include dependency graph for landuse.c:

Functions
int	landuse_readParams (int landuseIndex, char *tok[], int ntoks)
	Reads landuse parameters from a tokenized line of input.

int	landuse_readPollutParams (int pollutIndex, char *tok[], int ntoks)
	Reads pollutant parameters from a tokenized line of input.

int	landuse_readBuildupParams (char *tok[], int ntoks)
	Reads pollutant buildup parameters from a tokenized line of input. Data format is: landuseID pollutID buildupType c1 c2 c3 normalizerType.

int	landuse_readWashoffParams (char *tok[], int ntoks)
	Reads pollutant washoff parameters from a tokenized line of input.

void	landuse_getInitBuildup (TLandFactor landFactor, double initBuildup, double area, double curb)
	Initialize each land use's pollutant buildup and last-swept date.

double	landuse_getBuildup (int landuseIndex, int pollutIndex, double area, double curb, double buildup, double tStep)
	Advance pollutant buildup for one land use over a time interval.

double	landuse_getAvgBmpEffic (int subcatchIndex, int pollutIndex)
	Average pollutant BMP removal over a subcatchment's land-use fractions.

double	landuse_getWashoffLoad (int i, int p, double area, TLandFactor landFactor[], double runoff, double vOutflow)
	Computes pollutant load generated by a land use over a time step.

double	landuse_getCoPollutLoad (int p, double washoff[])
	Finds washoff mass added by a co-pollutant of a given pollutant.

Detailed Description

Land-use pollutant buildup and washoff calculations.

Author: Caleb Buahin caleb.nosp@m..bua.nosp@m.hin@g.nosp@m.mail.nosp@m..com (OpenSWMM maintenance and extensions)

Copyright: Copyright (c) 2026 Caleb Buahin. OpenSWMM contributions only; original EPA SWMM credits are retained.

License: Apache-2.0 for OpenSWMM contributions; original EPA SWMM provenance is retained.

Macro Definition Documentation

#define _CRT_SECURE_NO_DEPRECATE