CALINE3: CALINE3

In holstius/CALINE3: R Interfaces to Fortran 77 Implementation of CALINE3

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

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 [e-mail]

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

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.