Draft plan for application of aerosol and
chemistry models to the AMMA IOPs (WP4.1.3: Modelling
the interactions between aerosols/chemistry and the atmosphere)
The
objective of the model intercomparison is to evaluate
the model uncertainties for the AMMA region.
It is
proposed to produce output from the chemistry and aerosol models for at least
the golden days, but preferably July-August 2006 or from January 2006 if
feasible.
High
resolution models will likely only simulate selected golden days, global models
can provide the whole of 2006.
Golden days are:
If
possible, provide the daily meridional cross section
not only for 2006 but also for 2000 and
2003.
Emissions
Emissions at higher resolution for
For 2000 and 2003 emissions from the same
source should be used (but different years) – use what you like for the moment. If you
start simulations after GBA 2003-2006 has been finished by LA use this.
Use GBA 2000 to prepare your emission preprocessing. Cathy Liousse has prepared these at 0.5x0.5
degree, monthly resolution. They are available at the above mentioned website http://www.aero.obs-mip.fr:8001/
Use injection heights as described in GBA2000.
For dust emissions there is also a file with soil properties in high resolution (B. Marticorena) e.g. used by
Use LA emissions in a sensitivity study by only
a few models.
For summer the regions are
AT1:
AT2:
AT3:
AT4:
AT5:
For winter another set
of regions will be defined a.s.a.p. (Remy Roca/Frederic
Hourdin)
Set mixing ratio for all AT tracers to
100 between the surface and 850hPa.
Initialize everywhere else to zero
mixing ratio.
The regions have been defined
according to meteorological regime.
Output
o
between
20 S and 40 N (or shorter if your model has a more limited latitudinal domain)
o
representative
of (averaged over) 2W-6E (covering the
aircraft flights)
o
mixing
ratios for AT, ST, CO, isoprene, HCOH, O3, NOx
(NO+NO2), HNO3, PAN, H2O2, and OH, all aerosol concentrations & optical
depths
This corresponds to the “cross”-output of the
AMMA MIP for dynamical models, see http://amma-mip.lmd.jussieu.fr/
This can be provided on pressure or model
levels. In case of model levels please also provide the pressure variable.
For 2006 6 hourly output surface maps (not
monthly averaged).
Store in netcdf file and provide to AMMAMIP
(LMD). KNMI to provide test files.
Additional
output for 2006:
Files with aircraft location (longitude (degr E), latitude (degr N),
pressure (hPa) and time (hours & minutes UT) are already
available for the DLR Falcon and the French ATR and Falcon aircraft and the
British BAE aircraft at http://www.knmi.nl/samenw/campaign_support/AMMA/TRACKDATA/index.html
Geophysiciae location data have been provided by
Idir (but still need to be reduced to 1 minute time
resolution). It is
planned that these files are complemented with T (K), U-wind (m/s), V-wind
(m/s), water vapour mixing ratio (ppmv) or RH (%), so
that the representativity of the model simulated
meteorological fields can be assessed.
Requested model output at these points: date+UT (minutes), T(K), U, V, RH, H2O, O3, NO2, NO, HNO3,
OH, CO, AT, ST, isoprene, …
Add the output as extra columns to the aircraft
location files.
Please include also
pressure (hPa) in the model output!
·
For
Malindi there is presently only 1 sounding available
( 20060104 9h52 UT).
·
The
date list for
·
The
date list for
http://www.knmi.nl/samenw/campaign_support/AMMA/WP413/cotonou.txt
Background information about the
Output: monthly mean
Atmospheric gas concentrations at the surface:
Wet deposition/ rain water analysis (equivalent
mg /liter), whatever you can provide from the following list:
A table with detailed information per station was provided by Fabien Solmon. See
http://www.knmi.nl/samenw/campaign_support/AMMA/WP413/IDAFsite.pdf
For aerosol models nephelometer data and GRIMM aerosol size data are also
available at Nangatchori. See datelist of observations (excel) provided
by Cathy Liousse: http://www.knmi.nl/samenw/campaign_support/AMMA/WP413/EOP-chemNangatchori.xls
For 2000/2003 a
reduction of the number of sites is possible.
Investigate what optical properties are used to make this calculation in
the models.
Output for 2000 to be provided end of October
2007, for 2003/2006 in January 2008.
Peter will try to set up an ftp-server for
additional output.
The preferred output format is netcdf. Time
series and profile data may also be provided in ascii.
Please stick to CF convention as much as possible. See examples at http://wiki.esipfed.org/index.php/CF_Standard_Names_-_Accepted_names_for_TF_HTAP
KNMI (
Involved European models and contacts
|
Model |
Domain |
Type |
Contacts |
Mail |
|
TM4/5 |
global |
Chemistry |
|
|
|
Meso-NH |
Regional |
Chemistry Aerosols |
Céline Mari, Claire
Delon, Marielle Saunois, Veronique
Pont, LA Pierre Tulet, CNRM |
|
|
RegCM |
Regional |
Chemistry,
aerosols |
Cathy Liousse, Fabien
Solmon, LA |
|
|
TM4-ORISAM |
Global |
Aerosol |
Cathy Liousse, Bruno
Guillaume, LA |
Catherine.Liousse@aero.obs-mip.fr |
|
Mocage |
Global |
Chemistry |
Jean-Luc Attié, Brice Barret, LA Béatrice Josse,
CNRM |
|
|
LM-ART |
Regional |
Chemistry Aerosols |
Bernhard Vogel,
Karlsruhe |
|
|
BOLAM |
Regional |
Chemistry ? |
Federico Fierli ?, CNR ISAC |
|
|
LMDZ-INCA |
|
Chemistry, aerosols |
Kathy Law, Idir Bouarar, Mai Pham IPSL |
|
|
Chimere |
Regional |
Aerosols,
chemistry |
Schmechtig?,Marticorena?,LISA |
|
|
pTOMCAT |
Global |
Chemistry |
Xin Yang,
Un.Cambridge |
|
|
|
|
|
|
|
|
Contact
AMMA-MIP |
|
|
Frederic Hourdin |
Frederic.Hourdin@lmd.jussieu.fr |
Subjects for joint analysis
Gas phase chemistry
Gives us a very picture of the NOx budget
Aerosols + gases
Note: already work done by Dentener for 2000.
Aerosols
Perhaps also study scavenging by dust?
Focus: march 2006 dust storm
Aerosol-climate coupling?
Is done by Un. Karsruhe
– otherwise left to other WPs
Tracer experiments - analysis
KNMI+all groups