AeroCom phase III experiments

The AeroCom phase III experiments were initiated in March 2015 to expand earlier work.

Details of experiment design, priorities, requested output, and timeline are described in the linked documents below and also in the priority tables.

Files from AeroCom phase III experiments should be found on the aerocom-users server under

/metno/aerocom/users/aerocom1/AEROCOM-PHASE-III/{model}

For submissions of data to any experiment described below, please follow the instructions given here

Emissions are not requested to be harmonized. However, it is recommended to make use of the latest HTAP_v2 emissions. See more details on htap website: http://iek8wikis.iek.fz-juelich.de/HTAPWiki/WP1.1

in 2016 also the new CMIP6 emissions became available: http://www.globalchange.umd.edu/ceds/ceds-cmip6-data/

under construction, will be announced in Dec 2018

Contact: Michael Schulz (MetNo), michael.schulz@met.no

Experiment Description and motivation:

The model versions used for the different experiments are often not easily comparable. New model versions should be documented regularly to establish a state of the art comparison yearly. For this purpose AeroCom offers a semi-automatic platform with visualization via the AeroCom webinterface. Evaluation with surface observations and Aeronet observations will complete the documentation of emissions, removal, burden, lifetime of the major aerosol species.

In 2016 additional motivation we try to revisit the AeroCom evaluation done in 2006. Also - several experiments have been launched (in-situ optical properties, size, biomass burning, dust, nitrate and detailed 3h hourly evaluation to remote sensing data) which should be linked through common output. Also - models prepare for CMIP6 and might be interested in quick feedback.

Deadline

Deadline for model submissions to be analysed before the Beijing AeroCom workshop: 1.September, on the condition that formatting and naming of files follows the instructions below.

Experiment name: AP3-CTRL2016-PD and AP3-CTRL2016-PI

Two experiments:
One with current eg HTAPv2 emissions (*-PD)
One with preindustrial emissions (*-PI)
OR better using the new CMIP6 emissions….

Output request

Output requested (2D fields, Monthly averages, preferably model nudged to year 2010 meteorology):

Variables-Parameter:Speciation
EMI-Emissions: BC, OA, SO2, DMS, NOx, VOC, DUST, SS
(column integrated, if emission at altitude, eg SOA is accumulated in OA emissions)
LOAD-Column Loads: BC, OA, SO4, NO3, DUST, SS
SCONC-Surface concentrations: PM10, PM25, BC, OA, SO4, NO3, DUST, SS
DEP-Total Deposition: BC, OA, SO4, NO3, DUST, SS
OD550-Aerosol optical depth @550nm: AER, fine mode AER, coarse mode AOD, (tier 2: BC, OA, SO4, NO3, DUST, SS) 
Total AOD effective in radiative forcing code (OD550AER) and clearsky AOD (od550csaer)

SWTOA-Top of Atm Fluxes clear-sky and all-sky :

  AER, fine mode AER, coarse mode (//tier 2:// AOD, BC, OA, SO4, NO3, DUST, SS) \\  

LWTOA-Fluxes clear-sky and all-sky : AER, fine mode AER, coarse mode 
CCN Number concentration @ 850 hPa
IN Number concentration @ 100 hPa
Total Cloud cover
Cloud Water Path
Low level cloud cover
Precipitation rate

One file per variable and year. Variable names: emioa, emibc, …depbc…swtoacsaer, swtoaasaer…

Use latest variable names from AerChemMIP, and units, standard names as given in these tables:

AerChemMIP tables in EXCEL: EXCEL tables of AerChemMIP data request

OFFICIAL DATA REQUEST THROUGH CMIP6: CMIP6 data request

The directory /media/scratch/incoming/AEROCOM-P3-AUTO-UPLOAD allows for automatic incorporation into the AeroCom database and workup. Uploaded files are processed automatically by the AeroCom tools and transferred into the AeroCom phase III data directory. (Still in testphase, please send an email also to michael.schulz@met.no and anna.benedictow@met.no)

If correct in format and with correct filenames, results uploaded here will be processed over night and appear after few days as image catalogue on http://aerocom.met.no/cgi-bin/aerocom/surfobs_annualrs.pl?PROJECT=AEROCOM&MODELLIST=AEROCOM-Phase-III

Short Recipe (Long version: https://wiki.met.no/aerocom/data_submission)

1) Name files according to HTAPII/AeroComPhaseIII standards. One file per year and variable
aerocom3_<ModelName>_<ExperimentName>_<VariableName>_<VerticalCoordinateType>_<Period>_<Frequency>.nc
for example
aerocom3_GOCART_AP3-CTRL2016_od550aer_Column_2010_monthly.nc

2) Check for cf compliance some files (http://cf-checker.met.no/upload)

3a) obtain account on aerocom-users server

3) create directory on aerocom-users.met.no server:
/media/scratch/incoming/AEROCOM_AUTO_UPLOAD/{MODELNAME}/renamed/
Use exactly the same model name as used for file names. Attention to lower&upper case!!

4) Put files directly into this “renamed” directory.
And send e-mail to jan.griesfeller and michael.schulz and anna.benedictow @met.no

Contact: Nick Schutgens (Vrije Universiteit, NL); n.a.j.schutgens@vu.nl
Submission deadline: May 1 2017 (proposed)

As part of the CTRL2016 experiment, we propose a remote sensing evaluation of models using a variety of satellite sensors (MODIS, PARASOL, AATSR) and ground networks (AERONET, SKYNET). The only requirement to contribute to this experiment is high-frequency (3-hourly) output of a few model fields (such as AOD).

Remote sensing groups have provided us with aggregated (1 by 1 degree) observations. Model data will be collocated with these observations to reduce as much as possible spatio-temporal sampling issues. The evaluation should allow us to study model error in the context of observational uncertainty (estimated from ground site comparisons and diversity among satellite datasets). Interpretation of results will be facilitated by the regular CTRL2016 experiment information on emissions, depositions etc.

More information can be obtained from aerocom3_ctrl2016_remsens_v2.pdf or by emailing Nick Schutgens.

Contact: Michael Schulz (MetNo), michael.schulz@met.no

Experiment Description and motivation:

The model versions used for the different experiments are often not easily comparable. New model versions should be documented regularly to establish a state of the art comparison yearly. For this purpose AeroCom offers a semi-automatic platform with visualization via the AeroCom webinterface. Evaluation with surface observations and Aeronet observations will complete the documentation of emissions, removal, burden, lifetime of the major aerosol species.

Deadline for model submissions to be anlaysed before the Frascati AeroCom workshop: 15.September, on the condition that formatting and naming of files follows the instructions below.

Experiment name: AP3-CTRL2015

Output requested (2D fields, Monthly averages, preferably year 2010 meteorology):
EMI Emissions: BC, OA, SO2, DMS, NOx, VOC, DUST, SS
LOAD Column Loads: BC, OA, SO4, NO3, DUST, SS
SCONC Surface concentrations: BC, OA, SO4, NO3, DUST, SS
DEP Total Deposition: BC, OA, SO4, NO3, DUST, SS
OD550 Aerosol optical depth @550nm: AER, OA, SO4, NO3, DUST, SS 

The directory /media/scratch/incoming/AEROCOM-P3-AUTO-UPLOAD allows for automatic incorporation into the AeroCom database and workup. Uploaded files are processed automatically by the AeroCom tools and transfered into the AeroCom phase III data directory.

If correct in format and with correct filenames, results uploaded here will be processed over night and appear after few days as image catalogue on http://aerocom.met.no/cgi-bin/aerocom/surfobs_annualrs.pl?PROJECT=AEROCOM&MODELLIST=AEROCOM-Phase-III

Short Recipe (Long version: https://wiki.met.no/aerocom/data_submission)

1) Name files according to HTAPII/AeroComPhaseIII standards. One file per year and variable
aerocom3_<ModelName>_<ExperimentName>_<VariableName>_<VerticalCoordinateType>_<Period>_<Frequency>.nc
for example
aerocom3_GOCART_AP3-CTRL2015_od550aer_Column_2010_monthly.nc

2) Check for cf compliance some files (http://aerocom-test.met.no/upload)

3a) obtain account on aerocom-users server
3) create directory on aerocom-users server:
/media/scratch/incoming/AEROCOM_AUTO_UPLOAD/{MODELNAME}/renamed/
Use exactly the same model name as used for file names. Attention to lower&upper case!!

4) Put files directly into this “renamed” directory.

Contact: Betsy Andrews (NOAA/ESRL/GMD), Betsy.Andrews@noaa.gov

Experiment Description insitu_aerocompiii_description.pdf

List of stations with in-situ measurements to be used in comparison project insitu_station_inventory.xlsx

Modeller commitments (updated as commitments are made): https://docs.google.com/spreadsheets/d/1NL-l5WQ0kUFQkq8SPEvAq2fmtCzHIjFWnoTmKsthUhU/edit?usp=sharing

Follow project progress here: https://docs.google.com/document/d/1buqxPbJ7DhWrwBUgTGV8b47HWAzaeyTTeSzViq8Fo4M/edit?usp=sharing

Tools to extract station data at station locations from model fields, output into station netcdf file:

ncl: https://github.com/kaizhangpnl/sample_insitu kindly provided by Kai Zhang

Contact: Markus Fiebig (NILU), Markus.Fiebig@nilu.no; Stephen Platt (NILU), StephenMatthew.Platt@nilu.no

Experiment Description aerocompiii_insitu_pnsd_description_v1.pdf

List of stations with in-situ measurements to be used in comparison project 20160310_insitu_pnsd_station_list.xlsx

Tools to extract station data at station locations from model fields, output into station netcdf file:

ncl: https://github.com/kaizhangpnl/sample_insitu kindly provided by Kai Zhang

Contact: Huisheng Bian (GSFC/NASA, JCET/UMBC), Huisheng.Bian@nasa.gov

Experiment Description File

NH3 Emissions from Geia file

File name convention Nitrate Filename Protocol File

Essential nitrate variables file

Contact: Mariya Petrenko (NASA GSFC, USA; ORAU, USA), mariya.m.petrenko@nasa.gov

Experiment Description (updated November 26, 2014)File

Model output file naming convention (September 11, 2014) File

Variable names for model output (highlighted in blue/cyan; October 16, 2014) File ← Satellite overpass-time output is no longer requested. Only 3-hr and daily.

Model Description (Questionnaires filled by the groups in 2015): CAM5 (Kai Zhang, Hailong Wang, Xiaohong Liu): cam5_liu.xlsx cam5_references_foraerocomquestionnaie_liu.docx CIFS (Johannes Kaiser, Samuel Remy): aerocom_bb_models_questionnaire_cifs.xlsx cifs_figures_forquestionnaire.pdf cifs_references_foraerocomquestionnaire.docx ECHAM6-SALSA (Tero Mielonen, Tommi Bergman):aerocom_bb_models_questionnaire_echam6-salsa.xlsx GEOS-CHEM (Gabriele Curci, Anna Protonotariou): aerocom_bb_models_questionnaire_geos-chem.xlsx GOCART (Mian Chin, Mariya Petrenko): aerocom_bb_models_questionnaire_gocart.xlsx HadGEM3 (Ben Johnson): aerocom_bb_models_questionnaire_johnson_hadgem3-2.xlsx OsloCTM2 (Ragnhild Bieltvedt Skeie, Gunnar Myhre) aerocom_bb_models_questionnaire_1_osloctm2_final.xlsx SPRINTARS (Toshihiko Takemura): aerocom_bb_models_questionnaire_1_sprintars.xlsx sprintars_references_foraerocomquestionnaie.docx GISS ModelE (Keren Mezuman, Susanne Bauer, Kostas Tsigaridis): aerocom_bb_models_questionnaire_gissmodele.xlsx

Contact: Mian Chin (NASA) mian.chin@nasa.gov; Michael Schulz (MetNo) michael.schulz@met.no

AeroCom specific experiment description for HTAP2 File

HTAP2 experiment description HTAP website

Model output Specifications

Contact: Paul Ginoux (GFDL) paul.ginoux@noaa.gov

Experiment Specifications Dust source: NetCDF files

“EXPERIMENT NAMES”:

“CTRL2016” 1. Simulate with your own sources using your own C0 and Uto.

“MDB2-A“ 2. Simulate with MDB2 natural sources with Uto, then calculate global emission Cnew to have same global mean annual emission as in 1. Cnew=C0 * (global mean annual emis exp1)/(global mean annual emis exp2)

3. Simulate with MDB2 anthropogenic sources with Cnew and with: “MDB2-Ba” a) Uto “MDB2-Bb“ b) 0.5*Uto “MDB2-Bc” c) 1.5*Uto

“MDB2-C” 4. Simulate with MDB2 natural and anthropogenic sources with Cnew and Uto

Contact: Mian Chin (NASA) mian.chin@nasa.gov

Specific description for UTLS aerosol experiments File

Contact: Mian Chin (NASA) mian.chin@nasa.gov

Specific description for ACRI experiments File

Contact: Duncan Watson-Parris (Oxford) duncan.watson-parris@physics.ox.ac.uk

Building on the Phase II experiments this effort will support the interpolation of consolidated flight track points from high-temporal resolution model output to minimise the large sampling biases that would otherwise be present.

Recent dedicated aircraft measurement campaigns and data collection efforts have delivered a large amount of in-situ aerosol measurements of great value to AeroCom modellers. The Global Aerosol Synthesis and Science Project (GASSP) dataset brings 1000s of separate aircraft measurement flights across 10s of campaigns into a single consistent database. Combining this with data from recent campaigns such as CLARIFY, ORACLES, AToM and ACE-ENA provides a unique opportunity to evaluate AeroCom model aerosol distributions across a wide range of regions and meteorological conditions.

Each campaign includes different measurements of aerosol properties such as size distributions and speciation, and each focuses on different regions or phenomena; however, they all provide valuable model constraints and all require similar sampling considerations.

Experiment description: aerocom_aircraft_experiment_v1.2.docx

Requested diagnostics: See Phase III CTRL-X diagnostics ('atFlightTrack' sheet)

Ongoing analyses: Google Doc