[RegCNET] RegCM-Aerosol

Wed Nov 14 18:40:05 CET 2007

Dear Fabien,

    Thank you for the update information. But, If you ignore the effects 
of soil moistures you will get much more emissions in the area with high 
precipitation. You can use the treatment of Sho scheme for soil moisture 
- but you need to take the mixing ratio of soil moisture NOT percentage 
( subroutine smfv ).

best wishes
Ashraf

 SOLMON wrote:
> Dear Ashraf and Martin
>
> To use regCM in a dust intercomparison exercice, please make sure that
> the soil humidity bug is fixed ( cf dsflx.F routine attached ) . When
> working on the AMMA dry SOP ( March 2006) I obtained better result using
> no soil humidity effect ..For that you set JsoilM to a value different
> of 0 or 1 in the dust.cb before compilation.
> I perform some simulations in the context of AMMA that can be usefull
> for intercompaison ( we are also intercomparing MesoNH and regCM ) ..
> Also we plan to update the radiative properties of RegCM ( SW and LW) on
> the basis of AMMA observations ..
>
> Cheers
> FAbien
>
>
> Ashraf Zakey a e'crit :
>   
>> Dear Martin,
>>
>>      Thanks  for your kind reply.   Really, I would like to have 
>> interactive group from RegCM/Chem users. I'm thinking to bring the users 
>> closers.  I see that your work in the same line of our plans.  Also, I 
>> believe that you did a great work in this research line. The 
>> inter-comparison of the dust modules in each model is very good idea to 
>> validates each model. 
>>
>> Recently, we finished new preprocessing for the emission inventories 
>> database for RegCM/Chem to cover the period from 1960-2005 for the 
>> biogenic emission and some anthropogenic emission. This new 
>> preprocessors will be available very soon for our active users.
>>
>>  Involving ICTP in  join research project with you is good idea for 
>> keeping tracks of the RegCM developments together. The cooperation with 
>> ICTP is open for each active user.
>>
>> Best wishes
>> Ashraf
>>
>>
>> Martin Todd wrote:
>>   
>>     
>>> Dear Ashraf
>>>
>>> Many thanks for your email. Its comes at a good time because I was 
>>> going to email you about work we are doing here at University college 
>>> London with RegCM3.
>>>
>>> In answer to your questions...
>>>     
>>>       
>>>> 1-  Your research area ( Chemistry - aerosol or both)
>>>>       
>>>>         
>>> Mineral dust aersols over North Africa. For recent publications see 
>>> http://www.geog.ucl.ac.uk/~mtodd/publications.htm
>>>
>>>     
>>>       
>>>> 2-  The title of your proposal and small summery
>>>>       
>>>>         
>>> Mineral dust aerosols over North Africa. We are undertaking model 
>>> simulations of dust emission/transport from key preferential source 
>>> regions in North Africa. The aim is to quantify the direct and 
>>> semi-direct climate impact of mineral dust in the region. A major 
>>> focus is dust emission from the Bodele depression in northern Chad, 
>>> the world's largest single dust source. At the moment we are 
>>> conducting an intercomparison of numerous regional climate-aersosol 
>>> models for dust events in this region. We are using data from the 
>>> Bodele Dust Experiment (BoDEx 2005 
>>> http://www.geog.ox.ac.uk/research/climate/projects/bodex/) for 
>>> validation. We are also undertaking simulations of other dust regions 
>>> and events over north Africa during the AMMA experiment.
>>>
>>>  > 3-  The project coordinators of your work
>>>
>>> I am the project coordinator of the work here at UCL. However much of 
>>> the work is collaborative and we work closely with teams in the UK, 
>>> Europe, the USA and Israel.
>>>
>>>     
>>>       
>>>> 4- Is your research funded by specific project? which one?
>>>>       
>>>>         
>>> we have various sources of funding
>>>
>>>     
>>>       
>>>> 5- The requested aerosol/chemistry data for your simulation
>>>>       
>>>>         
>>> Can you clarify what you mean here?
>>>
>>>     
>>>       
>>>> 6- Did you have reasonable data to validate your simulation?
>>>>       
>>>>         
>>> We use observed data from the AMMA and BoDEx field programmes, AERONET 
>>> data as well as satellite data from SEVIRI, MODIS, OMI, CALIPSO, MISR
>>>
>>>     
>>>       
>>>> 6- How do you expects the help from ICTP?
>>>>       
>>>>         
>>> RegNET is a very useful forum. It would be very useful to have closer 
>>> dialogue with ICTP especially regarding advice on modifications to RegCM3
>>> aerosol module and radiation schemes.
>>>
>>>     
>>>       
>>>> 7- How do you expects ICTP-Join research work with your team? >
>>>>       
>>>>         
>>> We would welcome any help and advice that ICTP can offer. You may be 
>>> interested in some of our work. For example we are currently 
>>> undertaking a
>>> regional climate-aerosol model 'intercomparison' for dust events over 
>>> Chad. The intercomparison focusses on a single dust event (3 days) 
>>> using 5 models (RegCM3, LM-MUSCAT (Tegen et al), Meso-NH, RAMS, 
>>> DREAM). The project is rather limited in the first instance. It 
>>> developed from informal interaction between the modelling groups. AS 
>>> such it is not a formal intercomparison project based on a closely 
>>> constrained experimental configuration. Nevertheless it is a useful 
>>> first step and there are some interesting differences in model 
>>> performance. The aim is not to determine which model is best but 
>>> rather to quantify the uncertainty in the various model estimates of 
>>> meteroology and dust flux and to identify the primary sources of this 
>>> uncertainty. We have a unique set of observational data for validation.
>>>
>>> Best wishes
>>>
>>> Martin Todd
>>> ****************************
>>> Martin Todd
>>> Reader
>>> Department of Geography
>>> UCL (University College London)
>>> Pearson Building
>>> Gower Street
>>> London
>>> WC1E 6BT
>>>
>>> email m.todd at geog.ucl.ac.uk
>>> tel: +44 (0)20 7679 0571
>>> ********************************
>>>
>>> On Wed, 14 Nov 2007, Ashraf Zakey wrote:
>>>
>>>     
>>>       
>>>> Dear RegCM-aerosols/Chemistry users,
>>>>     In order to provide much better help for all of you, would you
>>>> please provide me the following information about your projects?
>>>>
>>>> 1-  Your research area ( Chemistry - aerosol or both)
>>>> 2-  The title of your proposal and small summery
>>>> 3-  The project coordinators of your work
>>>> 4- Is your research funded by specific project? which one?
>>>> 5- The requested aerosol/chemistry data for your simulation
>>>> 6- Did you have reasonable data to validate your simulation?
>>>> 6- How do you expects the help from ICTP?
>>>> 7- How do you expects ICTP-Join research work with your team?
>>>>
>>>> I'm interested to have interaction framework between all the
>>>> RegCM-aerosols/Chemistry users. Please try to provide the above
>>>> information.
>>>>
>>>>
>>>> best wishes
>>>> Ashraf Zakey
>>>>
>>>> !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
>>>> ! Dr. Ashraf Zakey, Visiting Research Scientist
>>>> ! Earth System Physics (ESP)
>>>> ! Physics of Weather and Climate Section (PWC)
>>>> ! The Abdus Salam International Centre for Theoretical Physics
>>>> ! P.O. BOX 586, (Strada Costiera 11 for courier mail)
>>>> ! 34100 Trieste, ITALY
>>>> ! Phone: + 39 040 2240 385
>>>> ! Fax: + 39 040 2240 449 (or + 39 040 224 163)
>>>> ! e-mail: azakey at ictp.it
>>>> !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
>>>>
>>>>
>>>>
>>>>
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>>>>       
>>>>         
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