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Dear Admin for AQMEII-2 Project Wiki,

My name is Patrick Campbell and I am a post-doc at NCSU, working with Dr. Yang Zhang. I am currently writing a paper regarding a multi-model evaluation using AQMEII-2 CONUS WRF-Chem model output. I would like to access some information on the model configuration and setup, however, I notice this content is set to private on this page. I have a Wiki-dot account, and would like to gain access to this information, however, membership applications are not enabled for this site. Is there any way I can access to this information?

Regards,

Patrick Campbell

Dear Astrid,

Indeed, we do not include the volcanic eruption in the AQMEII run.

Regarding AOD: You are right that there is an inconsistency in the overarching documents in terms of wavelengths to be saved by the modelers and the wavelengths to be delivered to JRC.
I’d recommend to output AOD at 470,555 and 675 nm or to follow the recommendations on the wiki if you’d like to store AOD for the wavelength bands of your model. Differences will be small in any case, I think.

Each model should write out the AOD it computes internally. For COSMO-ART, for example, we are writing out the 3D distribution of optical depths per model layer but only for 555 nm which we assume to be in the center of our broad wavelength band. We can thus not compute any Angstrom exponent from this output but at least we can compare with MODIS and AERONET at that wavelength. With 532 nm the Calipso Lidar is also close enough.

At a later stage and for the purpose of understanding differences between models we may also compute AOD from our 3D bulk aerosol model output using FLEXAOD (http://wiki.seas.harvard.edu/geos-chem/index.php/FlexAOD) as proposed by Gabriele Curci. However, for the moment we should not use FLEXAOD but rather save our internally computed AODs.

Best
Dominik

Question from Astrid:

Sorry to bother you all. Two questions came up from our side:
-should we include volcano emission in the base case? For the NA simulation it is stated explicitly that they should not be included, for the European case nothing is mentioned.
-For which wave lengths should we calculate AOD? Both (470, 550 en 650) and (470, 555 en 675 ) are mentioned.

Best regards,
Astrid

All,

We found a bug related to the coupling
of MEGAN and gas-phase mech. in WRF/Chem 3.4.1.
The coupling is broken between MEGAN and all gas-phase mechanisms other than RADM, RACM2, MOZART, MOZCART, GOCARTRACM, and GOCARTRADM2.
Namely, the coupling only works for options RADM2, RADM2_KPP, RADM2SORG, RADM2SORG_AQ, RADM2SORG_AQCHEM, RADM2SORG_KPP, RACM_KPP, RACMPM_KPP, RACM_MIM_KPP, RACMSORG_AQ, RACMSORG_AQCHEM, RACMSORG_KPP, RACM_SOA_VBS_KPP, RACM_ESRLSORG_KPP, MOZART_KPP, MOZCART_KPP, MOZART_MOSAIC_4BIN_VBS0_KPP, GOCARTRACM_KPP,GOCARTRADM2,GOCARTRADM2_KPP.

If you are using CBMZ,SAPRC99 and othe mechenisms that are listed above together with MEGAN, please double check the coupling.

Bug in WRF/Chem v3.4.1 by yzhang9yzhang9, 26 Feb 2013 16:38
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