[gradsusr] Maskout land

[Pavel Kishcha]

'define ocean = maskout(t2,0.01-mask.2)'

'd aave(ocean,lon=40,lon=90,lat=-15,lat=15)'

On Sat, Aug 15, 2020 at 3:56 PM lpasmanoranjan <lpasmanoranjan at gmail.com>
wrote:

> Dear Users,
> I have a temperature data. I would like to compute the area averaged
> temperature over the Ocean only. So I need to maskout the land areas. Is
> there any command to maskout the ocean directly.
>
> I have a land mask control file. I thought to do it by subtracting the
> land values from the original data. But the following script showing all
> zero values.
>
> 'open t2.ctl'
> 'open landmask.ctl'
> ‘define land=maskout(t2, mask.2-0.01)’
> ‘define total=t2’
> 'd aave(total-land,lon=40,lon=90,lat=-15,lat=15)'
>
> It could work if I would have an ocean mask control file.
>
> Any suggestions or script is highly appreciated?
>
> Thank you.
>
> --
> Kind Regards,
> Mano
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