Difference between revisions of "Dust"
(→Goals) |
|||
Line 19: | Line 19: | ||
Compare dust simulations to multiple observational datasets<br> | Compare dust simulations to multiple observational datasets<br> | ||
Recommend properties for dust size and refractive index<br> | Recommend properties for dust size and refractive index<br> | ||
+ | |||
+ | ===Short term actions=== | ||
+ | |||
+ | Provide specifications for a land use related dust source | ||
+ | to be implemented by participating modellers (Mahowald)<br> | ||
+ | Pull out of dust variables for one AeroCom model (Schulz)<br> | ||
+ | passed on to R. Miller for initial testing of Cakmur analysis | ||
===Processes and possible Diagnostics=== | ===Processes and possible Diagnostics=== |
Revision as of 07:35, January 16, 2007
Go back to AeroCom wiki discussion entry / AeroCom/Working group structure
Enter the Discussion on dust or click on the flag 'discussion' above.
AeroCom working group DUST
Participants
Ginoux, Balkanski, Mahowald, Schulz, Miller, Tegen, Zender, Winker, Mann, Takemura, (Textor)
- NEXT Telephone conference: probably march 07, organised from NCAR
Goals
Investigate the possible impact of anthropogenic dust sources
Compare dust simulations to multiple observational datasets
Recommend properties for dust size and refractive index
Short term actions
Provide specifications for a land use related dust source
to be implemented by participating modellers (Mahowald)
Pull out of dust variables for one AeroCom model (Schulz)
passed on to R. Miller for initial testing of Cakmur analysis
Processes and possible Diagnostics
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
Organise regular teleconferences
Prepare a natural and an anthropogenic dust source for a joint
experiment
Follow up on ideas from earlier Mahowald publications.
Assemble observations
(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
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?
Figure taken from Textor et al., ACP 2006