Welcome guest. Please login.

List, classification & detail view

Note:
More information on some input arrays can be found when moving the cursor above the corresponding field in the questionnaire. Those fields are also explained in the glossary.

CALMET/CAMx: Air Quality model based on CALMET analysis

General information

Model name and version

short nameCALMET/CAMx
full nameAir Quality model based on CALMET analysis
revision
dateCALMET v5.5/ CAMx 4.03
last change

Responsible for this information

nameDenise Pernigotti
instituteARPAV-CMT
addressVia Marconi 55
zip35037
cityTeolo (PD)
countryItaly
phone+390499998119
fax+390499998136
e-maildpernigotti(belongs-to)arpa.veneto.it

Additional information on the model

Contact person for model code

same as person above
nameDr. Fabio Dalan
instituteARPAV
divisionsORAR
street
zip
city
country
phone
emailfdalan@arpa.veneto.it
fax

Model developer and model user

developer and userfor CALMET see http://www.src.com/calpuff/calpuff1.htm for CAMx see http://www.camx.com

Level of Knowledge needed to operate model

basic
intermediate
advanced
remarks

Model use at your institution

operational
for research
other useused for assesment study, not for prediction

Model code available?

is available?yes
more details

Minimum computer resources required

type1CPU of 2GHz with 1MB RAM
time needed for run1year/6hours for Calmet; 850-1500 Hours for CAMx
storage1year/3GB for Calmet; ; 3MB per pollutant per level for CAMx

Further information

documentation
model references
webpagehttp://www.src.com/calpuff/calpuff1.htm, www.camx.com
additional information

Model properties

Model type

2D
3D
meteorology
chemistry & transport

Model scale

microscale
mesoscale
macroscale
short term
long term

Meteorological variables

PrognosticDiagnostic
u
v
w
ζ
pv
T
θ
θl
p
Gph
ρ
qv
qt
qlc
qf
qsc
qlr
qsh
qsg
qss
N
E
ε
K
zi
other variables i
other variables ii
other variables iii

Chemical substances

PrognosticDiagnosticDry depositionWet depositionInput data
SO2
NO
NO2
NOX
NH3
HNO3
O3
CH4
DMS
H2O2
VOC
C6H6
HCHO
CO
CO2
POP
PM 10
PM 2.5
PPM10
PM 0.1
PM 1
NH4
SO4
dust
sea salt
BC
POM
SOA
NO3
Other gasesPAN,NXOY,OLE,PAR,TOL,XYL,FORM,ALD2,ETH,CRES,MGLY,OPEN,PNA,HONO,H2O2,ISOP,MEOH,ETOH,ISPD,NTR,SULF,HCL,OLE2,CG1,CG2,CG3,CG4
1st radioactivity
2nd radioactivity
3rd radioactivity
Cd
Pb
other heavymetals
pesticides
1st radioactivity
2nd radioactivity
3rd radioactivity
remarks

Approximations

Boussinesq
anelastic
hydrostatic
flat earth
remarksCALMET is a diagnostic model; it interpolates the meteorological data (surface and radiosoundings) also using kinematic effects, slope flows and blocking effects. Vertical velocity is derived from a divergence minimization scheme.

Parametrizations

Meteorology

turbulence scheme
deep convection
surface exchangeHolstag and van Ulden (1983), Venkatram (1980) for momentum flux in stable conditions
surface temperatureinterpolation.
surface humidity
radiationHolstag and Van Ulden (1983)
unresolved orographic drag
radiation in vegetation
radiation between obstacles
treatment of obstacles
clouds / rain
remarks

Chemistry & transport

photolysis ratedepends on cloud presence upon RADM approach (Chang et al., 1987) which requires information on cloud optical depth for each cell.
dry depositiongas: deposition velocity multiplied by concentration at the surface (resistance model) with velocity depending on reacticity, solubility, diffusivity, meteorology, land-use (Wesey,1989; Luis, 1979). areosol: diffusion and gravitational impact depending on particle diameter (Slinn and Slinn, 1980; Kumar, 1996).
wet depositionscavenging (coefficients of Seinfeld and Pandis, 1998) depending on volume and density of droplets for areosol; gas and aerosol removal inside and below clouds; gas partition in gas and liquid phase with Henry's law with liquid phase going into the droplets depending on velocity and diameter of the falling droplets (Scott, 1998; Seinfeld and Pandis, 1998);
remarks

Chemical reactions

Gas & wet phase chemistry

chemical transformations calculated
chemical transformations neglected
other
gas phase chemistry (give details)CARBON BOND IV (Gery et al. 1989. Journal of Geophysical Research, 94, 925-956).
wet phase chemistry (give details)RADM (Chang et al.,1987), semi-volatile equilibrium SOAP (Strader et al.,1998),
more informationconstrant photolisis rate during the run

Aerosol chemistry

passive aerosol
dry aerosol
wet aerosol
sectional approach
modal approach
other
nucleation
coagulation
condensation
aerosol mixing
aerosol ageing
primary aerosol formation
aerosol-gas phase interactions
optical properties
give detailspartition of inhorganic costituents between gas and particles ASORROPIA (Nenes et al. 1998,1999. Just 1 specie is coarse, all secondary species are fine. Active-emmitted: PNO3,PSO4,PNH4 Active-non emitted: SOA1, SOA2, SOA3, SOA4, PCL Passive-emitted: FPRM,CPRM, POA, PEC Passive-non emitted: FCRS, CCRS, NA

Initialization & boundary treatment

Initialization

chemistry & transportrestart from previous concentrations
meteorologysurface data and radiosoundings.

Input data (name sources for data, e.g. website)

orographyUSGS
land useCorine
obstacles
vegetation
meteorologyGTS and local surface data
concentrations
emissionsnational TOP-DOWN disaggregation, BOTTOM-UP for sector 1,3 and 4.
remarks

Data assimilation

MeteorologyChemistry & transport
nudging technique
adjoint model
3D-VAR
4D-VAR
OI
detailsnone

Boundary conditions

MeteorologyChemistry & transport
surfacePrev'air outputs (CHIMERE) up to 3000m.
top
lateral inflowWind advection
lateral outflowWind advection

Nesting

MeteorologyChemistry & transport
one way
two way
other
variables nested
nesting online
nesting offline
data exchange by array
data exchange by file
time step for data exchange
explain method
variables nested
other

Solution technique

Coordinate system and projection

Horizontal

cartesian
Lambert conformal
latitude / longitude
rotated lat. / long.

Vertical

z coordinate
surface fitted grid
pressurecoordinate
sigma coordinate
remarks

Numeric

Meteorology

Grid

Arakawa A
Arakawa B
Arakawa C
Arakawa D
Arakawa E
uniform grid
nonuniform grid
Euler

Time integration

explicit
split-explicit
semi-implicit
other

Spatial discretisation

momentum equations
scalar quantities
additional information
other

Chemistry & transport

Grid

Arakawa A
Arakawa B
Arakawa C
Arakawa D
Arakawa E
uniform grid
nonuniform grid
Euler
Lagrange
Gauss

Time integration

explicit
split-explicit
semi-implicit
time step same as meteorology
other

Spatial discretisation

scalar quantities
additional information
other
chemistry solverIEH (Sun et al. 1994)

Model resolution

Meteorology

HorizontalVertical
max41000
min120

Chemistry & transport

HorizontalVertical
max41000
min420

Domain size

Meteorology

HorizontalVertical
max2002500
min1002500

Chemistry & transport

HorizontalVertical
max2002500
min2002500

Model Validation and Application

Validation & evaluation

Used validation & evaluation methods

analytic solutions
evaluated reference dataset
model intercomparison
additional validation & evaluation efforts
remarks

Application examples

application examplesSansone M., D. Pernigotti, M.E. Ferrario:' Application of CALMET model to the Veneto Region, with particular attention to the shoreline, using off-shore data for initialization'. Proceedings H&AQ-1, 2005. Pernigotti D.,M. Sansone, M. Ferrario: 'Validation of one-year LAMI model re-analysis on the PO-Valley, northern Italy. Comparison to CALMET model output on the syb-area of Veneto Region'. Preceedings of the 10th HARMO, 2005. For CAMx validation and intercomparison with other models in progress.

Participation in specific model evaluation exercises

AQMEII
List experiments (AQMEII)
Cost728
List experiments (COST728)
HTAP
List experiments (HTAP)
MEGAPOLI
List experiments (MEGAPOLI)