v

v

ABSTRACT
ABSTRACT

Emission processing methodology for the new GEM-MACH model

SMOKE
SMOKE has
has recently
recently been
been adapted
adapted to
to provide
provide emissions
emissions for
for the
the new
new Meteorological
Meteorological Service
Service of
of Canada
Canada
(MSC)
(MSC) air
air quality
quality model
model GEM-MACH.
GEM-MACH. The
The goal
goal of
of this
this project
project is
is to
to provide
provide aa versatile,
versatile, robust
robust and
and standard
standard
way
way to
to generate
generate emissions
emissions files
files for
for MSCs
MSCs operational
operational air
air quality
quality model
model GEM-MACH
GEM-MACH in
in support
support of
of research
research
and
and air
air quality
quality forecast
forecast applications.
applications. We
We give
give an
an overview
overview of
of the
the different
different challenges
challenges encountered
encountered in
in this
this
process
process and
and of
of some
some of
of the
the current
current applications
applications of
of the
the system.
system.

M. Sassi1, V. Bouchet1, L-P. Crevier1, S. Mnard1, P. Makar2, M. Moran2, D. Niemi3
1 Air Quality Modelling Applications Section, Meteorological Service of Canada, Environment Canada
2 Air Quality Modelling and Integration Research, Science Branch, Environment Canada
3 Pollution Data Division, Environment Canada
Corresponding author address: Mourad Sassi

2. one to take the SMOKE ASCII
elevated point source file and
convert it to
RPN Y-GRID format (major points)
RPN E-GRID format (minor points)

Application
Timings for 24 hr
simulation
Nb of CPUs

GEM (In-line)

Limited area (Polar Stereographic)
150 x 106, 28 levels
350 x 250, 24 levels
42 km
21 km
Model top: 30km
Model top: 6km
OpenMP
Policy guidance
90min
(continent, 150x106
gridpoints )

OpenMP
Real -time forecasting

Rotated (lat/lon)
465 x 348, 58 levels
15 km (0.1375 deg)
Model top: 10mb
MPI + OpenMP
Real-time forecasting

30min

40min

(continent, 350 x 250
gridpoints )

(continent, 465 x 348
gridpoints )

4

16

RPN
Y-GRID

Mobile-Source Stream

SS

SO4

OM

1.176E-01

OM
NH4

NO3

CM

CM

Include forest fire emissions
Apply growth factors for 2008
Add real-time generation of mobile emissions
to GEM-MACH using meteorological data

NO3

NH4

Future developments:

Include ocean-going vessels emissions

SS

BC

NO3

OM

NH4
CM

Area-Emission-Stream PM Size Profile

Mobile-Emission-Stream PM Size Profile

0.30
0.20
0.10
0.00
1

2

3

4

5

6

7

Size Bin

8

9

10

11

12

Point-Emission-Stream PM Size Profile

0.60
0.50
0.40
0.30
0.20
0.10
0.00

0.50
Mass Fraction

Mass Fraction

0.40

Mass Fraction

To accomplish these tasks, MIMS spatial allocator has been adapted to
handle the GEM variable-resolution grid on a rotated lat/lon projection. This
required the use of the E-GRID projection capacity of the MIMS Spatial
Allocator. We developed several utilities to facilitate this work.

SS

SO4
BC

SO4

BC

Point-Source Stream

Area-Source Stream

Gridded NO emissions on GEM-MACH
continental domain

Plan
Plan for
for the
the near
near future
future

The
The disaggregation
disaggregation of
of the
the PM
PM emissions
emissions is
is done
done for
for three
three source
source streams
streams
as
as function
function of
of size
size and
and composition
composition

AQ model

Major point sources, SO2 emissions on
GEM-MACH continental domain

E
NE A
ND p
-X

YLE
N

NE
o-XY
LE

m-XY
LE

2-ME

MET
H

Experimental ozone output over North America.
(June 9th 2007)

Creation
Creation of
of SMOKE
SMOKE PM
PM speciation
speciation input
input files
files
RPN
E-GRID

64

2.600E-02

5.670E-02
ZEN
E

TOL
UEN
E

ENE
BEN
Z

THY
L

CLO
PE
YLC
Y

8.390E-02

3.780E-02

0.000E+00

NTA
NE

HEX
ANE

0.000E+00
ANE
2,4- D
I

M ET
HYL
PENT

NE
HEX
A

EN T
iso-P

VOC Species

1. one to go from I/O API to RPN
E-GRID format

2.900E-02

7.800E-02
1.240E-02
ANE

1.180E-02
n-PE

ISOB
UTY
L

NTA
NE

ENE

E

0.000E+00

3.000E-02

6.090E-02

TAN

0

iso-B
U

0.02

NE

0.04

BUT
E

0.06

6.380E-02

0.08

ANE

0.1

ETH
YLB
EN

1.543E-01

0.12

n-BU
T

SMOKE NetCDF

0.14

E

Two file converters were built to convert
the SMOKE output to the right format:

0.16

ACE
TYL
EN

Point sources
SMOKE ASCII

Area sources

0.18

parallelization

GEM (Off-line)

Coal-Fired Boiler - Industrial: VOC Fractionation

7.700E-03

GEM-MACH
GEM-MACH reads
reads 2D
2D emissions
emissions input
input data
data in
in the
the so-called
so-called RPN
RPN Standard
Standard
File
File format.
format. Elevated
Elevated point
point sources
sources are
are read
read in
in lat/long
lat/long format
format and
and the
the plume
plume
rise
rise calculation
calculation is
is done
done within
within the
the model.
model.

Fraction of Total VOC Emission

Conversion
Conversion of
of SMOKE
SMOKE output
output to
to GEM-MACH
GEM-MACH format
format

E

If the substance was assigned to multiple bins the mass was multiplied by
the mass fraction for the particular bin (eg: Alkane / Aromatic Mix).
The masses were summed to the appropriate NAPAP & ADOM II bin.
The mass of the substance was converted to moles using the molecular
weight
The moles of the substance were added to the NAPAP bin and multiplied
by the NAPAP reactivity weighting and added to the ADOM II bin.

PROP
EN

Update
Update the
the 2005
2005 Canada/US
Canada/US NEI
NEI with
with the
the latest
latest 2008
2008 informations.
informations.
Process
Process the
the emissions.
emissions. Fourteen
Fourteen monthly
monthly sets
sets of
of two
two daily
daily emissions
emissions files
files
were
were produced
produced to
to feed
feed into
into the
the model.
model.
Provide
Provide the
the appropriate
appropriate grid
grid tools
tools for
for mapping
mapping point
point sources
sources emissions
emissions to
to
specific
specific grid
grid cells.
cells.
Perform
Perform tests
tests and
and evaluations
evaluations of
of the
the new
new datasets.
datasets.

Resolution

The following procedure was developed for the binning of the detailed
speciation to the NAPAP and ADOM II mechanisms and was used to create the
ADOM II speciation files profiles for SMOKE.

5.200E-02

Meteorology

Creation of a VOC speciation

NE

SMOKE
SMOKE processing
processing and
and QA/QC
QA/QC

GEM-MACH
GEM-MACH is
is aa Global
Global Environmental
Environmental Multiscale
Multiscale Model
Model for
for Air
Air Quality
Quality and
and Chemistry
Chemistry Modeling
Modeling
(similar
(similar design
design to
to WRF-CHEM).
WRF-CHEM).
This
This new
new model
model has
has an
an on-line
on-line photochemical
photochemical gas
gas chemistry
chemistry package
package (based
(based on
on ADOM
ADOM IIII
mechanisms)
mechanisms)
and
and an
an aerosol
aerosol capability
capability (based
(based on
on CAM).
CAM).
GEM-MACH
GEM-MACH has
has aa more
more detailed
detailed chemistry
chemistry and
and emission
emission packages
packages than
than CHRONOS,
CHRONOS, the
the current
current
AQFM
AQFM
Will
Will run
run daily
daily over
over North
North America
America to
to provide
provide air
air quality
quality forecasts
forecasts (ozone
(ozone and
and PM)
PM) in
in support
support of
of the
the
Canadian
Canadian Air
Air Quality
Quality Prediction
Prediction Program.
Program.
The
The 15
15 km
km model
model grid
grid is
is 465x348
465x348 extends
extends from
from Texas
Texas to
to Nunavut
Nunavut and
and from
from Alaska
Alaska to
to Newfoundland.
Newfoundland.
Biogenic
Biogenic emissions
emissions calculations
calculations are
are performed
performed inside
inside GEM-MACH
GEM-MACH with
with an
an online
online version
version of
of BEIS3.09
BEIS3.09
and
databases.
AURAMS
CHRONOS factors
GEM-MACH
and updated
updated vegetation
vegetation and
and emission
emission
factors
databases.
Grid configuration

PROP
A

Create
Create spatial
spatial surrogate
surrogate files
files on
on native
native GEM-MACH
GEM-MACH grid
grid (Same
(Same grid
grid as
as GEM
GEM
meteorological
meteorological model).
model).
Set
Set ADOM
ADOM IIII as
as chemical
chemical mechanism
mechanism and
and define
define the
the group
group of
of species
species
needed
needed by
by GEM-MACH
GEM-MACH in
in the
the gspro
gspro file.
file.
Update
Update the
the temporal
temporal profiles
profiles with
with the
the most
most recent
recent data
data available.
available.

0.000E+00

SMOKE
SMOKE ancillary
ancillary files:
files:

GEM-MACH
GEM-MACH description
description

Mappings and assignments
were created to the following
chemical mechanisms:
NAPAP
ADOM II
SAPRC99
RADM
CB4
CB5
AURAMS86

Direct linking of VOC emissions to the species
mapping in the different mechanisms was
performed by linking the CAS or SAROAD
codes with the available mapping files.

E

AA new
new operational
operational Air
Air Quality
Quality Forecast
Forecast Model
Model GEM-MACH
GEM-MACH is
is being
being
implemented
implemented at
at MSC.
MSC. We
We built
built aa modeling
modeling platform
platform to
to produce
produce several
several sets
sets
of
of gridded
gridded emissions
emissions for
for Environment
Environment Canada
Canada needs:
needs:

ETH
YLE
N

GEM-MACH
GEM-MACH Emission
Emission Modeling
Modeling

Through the NPRI, Environment Canada has
received detailed speciation information for
Canadian VOC emissions. These emissions
are reported at the facility or stack levels.
However, NPRI reports do not contain
process information. SMOKE is therefore not
capable of directly handling such data as it
expects (process-based) SCC codes in order to
do its own speciation.

1.779E-01

Few changes were required to SMOKE to make the system work with Environment
Canadas new air quality model GEM-MACH. Input and output file converters had
to be constructed to go to and from the GEM-MACH and I/O API file formats. A
new VOC speciation for the ADOM II mechanism was constructed and tested and
a PM size disaggregation mechanism was implemented for use.

Assignment of Canadian VOC emission speciation
data to different chemical mechanisms

ETH
ANE

Modifications and Additions to SMOKE

0.40
0.30
0.20
0.10
0.00

1

2

3

4

5

6

7

Size Bin

8

9

10

11

12

1

2

3

4

5

6

7

Size Bin

8

9

10

11

12

Annual emissions of SO2 North American
ocean-going vessel emissions inventory

Recently Viewed Presentations

  • Control-Plane Slicing Methods in Multi-Tenant Software ...

    Control-Plane Slicing Methods in Multi-Tenant Software ...

    Control-Plane Slicing Methodsin Multi-Tenant Software Defined Networks. IFIP/IEEE International Symposium on Integrated Network Management. May 11, 2015. Ottawa, Canada. C. Argyropoulos, K. Giotis, G. Androulidakis, D. Kalogeras, V. Maglaris. Network Management & Optimal Design Laboratory (NETMODE) School of Electrical &...
  • Section D: Finance

    Section D: Finance

    It is commonly used to track private investment in infrastructure. Although private operators would not typically bring "new" financing to the sector as they are not financing types as such, they can temporarily bridge the financing gap. Click to edit...
  • Lymphatic organs Lecture (13) By Dr.Dalia Kamal Eldein

    Lymphatic organs Lecture (13) By Dr.Dalia Kamal Eldein

    Numerous folds of pharyngeal epithelium, not true crypts. Lingual. Posterior third of tongue. Stratified squamousnon-keratinising. ... The spaces between the trabeculae are occupied by a soft sponge like tissue known as the splenic pulp.
  • TimelinesBC to AD

    TimelinesBC to AD

    In BC years, the timeline numbers get smaller as they get closer to today. Think of a number line with negative numbers. As negative numbers get closer to positive numbers, they grow smaller. BC years get smaller this way ....
  • The University PowerPoint Template

    The University PowerPoint Template

    Title: The University PowerPoint Template Subject: PowerPoint template Author: Admin Keywords: tuos, sheffield, university, powerpoint, ppt, template, i-d, 2005 ...
  • Learning and the Individual  To introduce different typologies

    Learning and the Individual To introduce different typologies

    To what extent are these ways of describing learners fixed? - can they be learned?! Are there 'teaching styles'? If so, how do they relate to 'learning styles'? Trait or state? Are these individual differences between learners traits (i.e. genetically...
  • Setting up Your Interactive Journal - Mrs. Brewer Class of ...

    Setting up Your Interactive Journal - Mrs. Brewer Class of ...

    The mission of the Paul Laurence Dunbar Young Men's Leadership Academy, is to cultivate and empower all young men through perseverance, resilience, integrity, discipline, and excellence by developing academic scholars for generations to come.
  • Osmoregulation and Excretion - Bio Resource Site

    Osmoregulation and Excretion - Bio Resource Site

    Porocytes and flagella. Excretory Systems. Dispose of metabolic wastes. Regulate solute concentrations in the body. Transport epithelia arranged in tubes. 4 major processes. Filtration, pressure-filtering of body fluids producing a filtrate (water, salts, sugars, amino acids, N-wastes)