Re: [ferret_users] sum in ferret

[Russ Fiedler <russell.fiedler@xxxxxxxx>]

Hi Nitin,

Don't you want the total emissions (kg)? I think you'll want the integrals and not the sums. You want the @DIN transformation.

let data=""  ! to integrate all 12 months. This would show a map of kg/m^2

...
list/append/nohead/file=BC-awb.txt india[x=65:95@din,y=5:40@din] ! This is total value over India.

Cheers,
Russ

On 28/04/15 16:44, Nitin Patil wrote:

Dear ferret users,

I am doing the following to get the annual total value of emission which is kg/m2/sec in d=1:

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use accmip_emissions_aerocom_1960.0.5x0.5.nc

use india_0.5deg_amip.nc ! mask file

let data=""  ! to add all 12 months

let india=data[d=1,g=mask[d=2]]*mask[d=2] ! to get only over India masking

list/append/nohead/file=BC-awb.txt india[x=65:95@sum,y=5:40@sum] ! This is to total value over India.

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My query is whether I am using @sum for totallling is correct or any other transformation i have to use.

Kindly let me know. 

--

Regards,

Nitin Patil