AeroCom wiki discussion entry
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See also summary of AeroCom/Recommendations
Enter the DISCUSSION HERE[edit | edit source]
Thursday December 14h --- Michael Schulz ---
Dear dust colleagues,
Having met Nathalie and Paul in Paris during the GEIA conference I am motivated again for suggesting joint dust work. I think there is a good chance to get a better 'dust analysis' going on the basis of the AeroCom data. But we probably need to do/propose some additional experiments.
During the AeroCom workshop we have said that a working group should be installed and Paul kindly agreed to lead it (for now). As suggested by the meeting we intend to maintain wiki pages for joint discussion and I have set up one with basic initial thoughts:
However - Nathalie and me thought that some few telephone conferences would be really helpful to get things going. I have no real experience but can only propose skype. Any better suggestion would be perfect!! I just tested: we could also download images on the wiki page prior/during a telecon. Not so complicated. I suggest you use the wiki page to enter propositions for a first teleconference.
Right now I am not sure we will manage to start before Christmas. But some reaction to this proposal would be nice,
have nice winter days! Michael
AeroCom working group DUST[edit | edit source]
Participants for analysis[edit | edit source]
Ginoux, Balkanski, Mahowald, Schulz, Winker, Mann, Takemura, Miller?, Tegen?, Zender?,
NEXT Telephone conference: 10th of January 17 UTC (= 18 Paris time, 12 ET, 10 Boulder Time?)
Goals[edit | edit source]
Investigate the possible impact of anthropogenic dust sources
Compare dust simulations to multiple observational datasets
Recommend properties for dust size and refractive index
Processes and possible Diagnostics[edit | edit source]
Dust erosion - wind frequency and speed ; threshold velocities; effective source fluxes; source size distribution
Dust settling - dry removal velocities per size bin;
Wet Dust removal - wet scavenging efficients; vertical distribution; wet deposition of Calcium, dust;
Scattering and absorption - refractive index; AOD; size; absorption
Short-term actions/experiments[edit | edit source]
Organise regular teleconferences
Prepare a natural and an anthropogenic dust source for a joint
Follow up on ideas from earlier Mahowald publications.
(Visibility, IDDI, MISR, MODIS, MODIS Deepblue, Deposition, Aeronet, Aeroce, Calipso, Asian dust observations, Ca concentrations in rain)
Retrieve from AeroCom database dust variables and wind speed fields
Eventually participate in dust conference in Italy
Data to look at[edit | edit source]
The AeroCom database has unanalysed data on dust deposition and wind speed statistics in some models.
Aeronet dust dominated sites
Refractive index and size in literature
Dust, Fe and Ca concentrations in air and precipitation
Satellite AOD in dust dominated regions (MISR, MODIS, TOMS, DEEPBLUE-MODIS, CALIPSO)
Fine mode AOD in dust regions?