Input value and unit of "dust_emis_fact"

[sunty0430@gmail_com]

What is the typical value of the dust emission in cam5?
I notice people use D0 as the unit when tuning the dust emission with variable " dust_emis_fact".
What does D0 mean?

Thanks!

 

[hannay]

D0 just means that it is defined as a float double precision. (E0 would be for single precision)

 

[hannay]

D0 just means that it is defined as a float double precision. (E0 would be for single precision)

 

[tilmes]

If you check out a compset, the dust_emis_fact value should be set in a way that you will get the right amount of dust in the model. However, if you perform changes to the simulation, or change the resolution, or add chemistry, the value may have to be adjusted. This is very much dependent on the specifics of your case.

 

[tilmes]

If you check out a compset, the dust_emis_fact value should be set in a way that you will get the right amount of dust in the model. However, if you perform changes to the simulation, or change the resolution, or add chemistry, the value may have to be adjusted. This is very much dependent on the specifics of your case.

 

[sunty0430@gmail_com]

Thanks a lot for the reply.Will the sand emission affect the trasnport, distribution and depostion of black carbon? Thanks,

 

[sunty0430@gmail_com]

Thanks a lot for the reply.Will the sand emission affect the trasnport, distribution and depostion of black carbon? Thanks,

 

[panbowen_pbw@gmail_com]

I've heard that in CESM1.1 the dust_emis_fact should be 0.55 rather than 0.35. Does it have same problem with other version of CESMs? If I set dust_emis_fact to zero, does it mean I turn off the dust emission?  Thanks,Bowen 

 

[panbowen_pbw@gmail_com]

I've heard that in CESM1.1 the dust_emis_fact should be 0.55 rather than 0.35. Does it have same problem with other version of CESMs? If I set dust_emis_fact to zero, does it mean I turn off the dust emission?  Thanks,Bowen 

 

[hannay]

 The value of   "the dust_emis_fact s" is dependant of the dynamical (and also teh resolution):for spectral element: dust_emis_fact = 0.55 (at ne30)for finite volume: dust_emis_fact = 0.35 (at f09)You should get these value automatically. 

 

[hannay]

 The value of   "the dust_emis_fact s" is dependant of the dynamical (and also teh resolution):for spectral element: dust_emis_fact = 0.55 (at ne30)for finite volume: dust_emis_fact = 0.35 (at f09)You should get these value automatically.