Difference between revisions of "Dust"

Latest revision as of 05:35, August 12, 2012

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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 climate 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
- establish an observational database beyond Cakmur et al and AeroCom
- revisit HTAP dust experiment design (see MS email to AeroCom in Dec)
- eventually come together at AGU Acapulco conference in May 2007
- suggest input for C. Zender for Perrugia conference

List of Observational data to be included in analysis

Al in ocean water

Visibility

IDDI index

Satellite AOD in dust dominated regions (MISR, MODIS, TOMS, DEEPBLUE-MODIS, CALIPSO, Aeronet, Calipso)

Coarse mode satellite derived AOD in dust regions?

Deposition DIRTMAP, Fe, Ca in rain

Surface concentrations Aeroce, Asian network

Refractive index and size in literature

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

Figure taken from Textor et al., ACP 2006

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-Go back to '''[[AeroCom]]''' wiki discussion  entry
+Go back to '''[[AeroCom]]''' wiki discussion  entry  / '''[[AeroCom/Working group structure]]'''
-Go back to '''[[AeroCom/Working group structure]]'''
-See also summary of '''[[AeroCom/Recommendations]]'''
 Enter the '''[[Talk:Dust|Discussion on dust]]''' or click on the flag 'discussion' above.
 ----
 '''AeroCom working group DUST'''
+===Participants===
-===Participants for analysis===
+Ginoux,	Balkanski, Mahowald, Schulz, Miller, Tegen, Zender,
-Ginoux,	Balkanski, Mahowald, Schulz,
+Winker, Mann, Takemura, (Textor)
-Winker, Mann, Takemura, Miller?, Tegen?, Zender?,
 -
-NEXT Telephone conference:
+NEXT Telephone conference: probably march 07, organised from NCAR
-th of January 17 UTC (= 18 Paris time, 12 ET, 10 Boulder Time?)<br>
-telephone number available from Michael Schulz<br>
-Participants foreseen:
 ===Goals===
-Investigate the possible impact of anthropogenic dust sources<br>
+Investigate the possible climate impact of anthropogenic dust sources<br>
 Compare dust simulations to multiple observational datasets<br>
 Recommend properties for dust size and refractive index<br>
-===Processes and possible Diagnostics===
+===Short term actions===
-Dust erosion - wind frequency and speed ; threshold velocities;
-effective source fluxes; source size distribution
-Dust settling - dry removal velocities per size bin;
+- 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<br>
+- establish an observational database beyond Cakmur et al and AeroCom<br>
+- revisit HTAP dust experiment design (see MS email to AeroCom in Dec)<br>
+- eventually come together at AGU Acapulco conference in May 2007<br>
+- suggest input for C. Zender for Perrugia conference
+===List of Observational data to be included in analysis===
-Wet Dust removal - wet scavenging efficients; vertical distribution;
+Al in ocean water
-wet deposition of Calcium, dust;
-Scattering and absorption - refractive index; AOD; size; absorption
+Visibility
-===Short-term actions/experiments===
+IDDI index
-Organise regular teleconferences<br>
+Satellite AOD in dust dominated regions
+(MISR, MODIS, TOMS, DEEPBLUE-MODIS, CALIPSO, Aeronet, Calipso)
-Prepare a natural and an anthropogenic dust source for a joint
+Coarse mode satellite derived AOD in dust regions?
-experiment<br>Follow up on ideas from earlier Mahowald publications.
-Assemble observations<br>
+Deposition
-(Visibility, IDDI, MISR, MODIS, MODIS Deepblue, Deposition, Aeronet,
+DIRTMAP, Fe, Ca in rain
-Aeroce, Calipso, Asian dust observations, Ca concentrations in rain)<br>
-Retrieve from AeroCom database dust variables and wind speed fields<br>
-Eventually participate in dust conference in Italy <br>
+Surface concentrations
+Aeroce, Asian network
-===Data to look at===
+Refractive index and size in literature
-The AeroCom database has unanalysed data on dust deposition
+===Processes and possible Diagnostics===
-and wind speed statistics in some models.
-Aeronet dust dominated sites
+Dust erosion - wind frequency and speed ; threshold velocities;
+effective source fluxes; source size distribution
-Refractive index and size in literature
+Dust settling - dry removal velocities per size bin;
-Dust, Fe and Ca concentrations in air and precipitation
+Wet Dust removal - wet scavenging efficients; vertical distribution;
+wet deposition of Calcium, dust;
-Satellite AOD in dust dominated regions
+Scattering and absorption - refractive index; AOD; size; absorption
-(MISR, MODIS, TOMS, DEEPBLUE-MODIS, CALIPSO)
-Fine mode AOD in dust regions?
 [[Image:Sink DUST an2000 mALLYEAR WORLD Fraction.ps.png|Sink repartitioning among AeroCom models]]
+Figure taken from [http://www.copernicus.org/EGU/acp/acp/6/1777/acp-6-1777.pdf Textor et al., ACP 2006]