Hello Netsanet
The fluxes ( emissions deposition) are averaged fluxes between two
output time steps.
They have unit of flux density, but instead of being Kg.m-2.s-1 ,
they are mg.m-2.day-1 .
If you want the total emitted mass between T-1 and T , T being
your output time , you have simply to convert your flux in hr-1
and multiply the number of hours between 2 output :
eg : for 6 h outputs : M(T-1,T) = F (T-1,T) / 24 * 6 (mg/m2)
then you can of course accumulate over any period of time
The burden is instantaneous : Burden(T)
If you are doing some mass budget studies , I strongly recomand
you to use also the option ichdiag = 1 : that will give you the
tracer tendencies (again averaged between two outputs time steps)
linked to every tracer processes including emission, settling and
depoistion,rainout,washout, tbl, conv, adv, and boundary
conditions , in every part of the domain .
Fabien
On 11/26/2013 11:06 AM, Mirkana Degenie wrote:
Dear all
I want to compare the dust emission minus deposition against
burden. Dust emission and deposition have units of mg.m-2.day-1
but the outputs are made every one hour. Is it consistent? or do
I need to convert the per day output to per hour? And how can I
make comparison of emission minus emission versus burden(which
has a unit of mg.m-2). Emiision and deposition are flux(rate of
transfer of mass). So how can I get the mass itself from
emission or deposition.
regards,
Netsanet
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