CALINE3: CALINE3

Description Usage Arguments Details Value Author(s) References Examples

Description

CALINE3 provides an interface to a Fortran implementation of CALINE3.

CAL3RXL predicts the incremental contribution from each link to the concentration at each receptor under a single set of meteorological conditions.

Given a sample of representative meteorological conditions, CALINE3_RECEPTOR_TOTALS predicts cumulative concentrations at each receptor (from incremental concentrations contributed by each link)

Usage

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CAL3RXL(XR, YR, ZR, XL1, YL1, XL2, YL2, WL, HL, NTYP, VPHL, EFL, UM, BRGM,
  CLASM, MIXHM, ATIM, Z0, VS, VD, LXR, .coerce = TRUE)

CAL3RXM(XR, YR, ZR, XL1, YL1, XL2, YL2, WL, HL, NTYP, VPHL, EFL, UM, BRGM,
  CLASM, MIXHM, ATIM, Z0, VS, VD, LXR, .coerce = TRUE)

Arguments

XR

x-coordinates of the receptors

YR

y-coordinates of the receptors

ZR

z-coordinates of the receptors (height above ground level, usually 1.8m)

XL1

starting x-coordinates of the links

YL1

starting y-coordinates of the links

XL2

ending x-coordinates of the links

YL2

ending y-coordinates of the links

WL

widths of the links

HL

heights of the links (above ground level)

NTYP

link classifications (1=at grade, 2=bridge, 3=fill, 4=depressed)

VPHL

link-level traffic volumes, in vehicles per hour

EFL

link-level emission factors, in grams per vehicle-mile per hour

UM

wind speeds, in meters per second (not less than 1.0)

BRGM

wind bearings, in degrees (direction wind is blowing from)

CLASM

stability classes (1, 2, 3, 4, 5, or 6)

MIXHM

mixing heights, in meters (over 1000 skips mixing height calculations)

ATIM

averaging time, in minutes (usually 60)

Z0

surface roughness, in centimeters

VS

settling velocity, in cm/sec

VD

deposition velocity, in cm/sec

LXR

whether to process (or skip) a given receptor-link pair

.coerce

force arguments to be cast to correct type

Details

All coordinates are in meters unless otherwise specified. By default, predicted concentrations are returned in units of grams per cubic meter (g/m^3).

Value

CAL3RXL returns a matrix of concentrations of size NR x NL, where NR is the number of receptors and NL is the number of links.

CAL3RXM returns a matrix of concentrations of size NR x NM, where NR is the number of receptors and NM is the number of meteorological conditions

Author(s)

David Holstius dholstius@baaqmd.gov

References

Benson, P. (1979) CALINE-3: A versatile dispersion model for predicting air pollution levels near highways and urban streets. Federal Highway Authority report FHWA/CA/TL-79/23, California DOT, Sacramento (1979).

Examples

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CAL3RXL(
  XR = 30., YR = 0., ZR = 1.8,
  XL1 = 0., YL1 = -5000., XL2 = 0., YL2 = 5000.,
  WL = 30., HL = 0., NTYP = 1, VPHL = 7500., EFL = 30.,
  UM = 1.0, BRGM = 270., CLASM = 6, MIXHM = 1000.,
  ATIM = 60., Z0 = 10., VS = 0., VD = 0.)
CAL3RXM(
  XR = 30., YR = 0., ZR = 1.8,
  XL1 = 0., YL1 = -5000., XL2 = 0., YL2 = 5000.,
  WL = 30., HL = 0., NTYP = 1, VPHL = 7500., EFL = 30.,
  UM = 1.0, BRGM = 270., CLASM = 6, MIXHM = 1000.,
  ATIM = 60., Z0 = 10., VS = 0., VD = 0.)

holstius/CALINE3 documentation built on May 17, 2019, 4:39 p.m.