[RegCNET] domain size for EH5OM

[bixq]

Hi, Jagan TNAU:

Moetasim is correct. It doesn't make sense to run a domain such small

(24,30), you know, by default, RegCM uses 12 grid for LBC buffer zone.

If you use domain size (24,30), then there will be no inner grids.

Usually, the domain size should be greater than (90,70) at least.

Regards,
Xunqiang Bi

On Sun, 25 Oct 2009, jagan TNAU wrote:

> Dear RegCM Users,
>
> We want to downscale the EH5OM A1B at 25 km resolution for Southern
> peninsular Indian state of Tamilnadu. The proposed domain details are given
> below.
>
> iy=30
> jx=24
> ds=25.0
> clat=10.75
> clon=78.50
>
> Kindly suggest whether we can use this domain. After downscaling we will be
> using the data for simulating the crop yield for the future. We have already
> done similar exercise with PRECIS using the HadCM3Q A1B at 25 km resolution.
> However, in regcnet archives Moetasim Ashfaq indicated that domain size
> should not be less than the one given below.
>
>
> iy=111
>
> jx=120
>
> ds=50.0
>
> clat=21.0
>
> clon=80.0
>
>
> In that case whether we should not use a resolution of 25 km specifically
> for EH5OM or we can use 25 km with bigger domain of size indicated by Dr.
> Moetasim. As we have good computing resource we can increase the domain size
> also.
>
>
> Urgent response is required as this will form part of my student thesis.
>
>
>
> -- 
> With regards
>
> Dr.R.Jagannathan
> Professor and Head
> Agro Climate Research Centre,
> Tamil Nadu Agricultural University,
> Coimbatore - 641 003 India
>
> PHONE: Off: 91-422-6611519 Res: 91-422-2453600
>      Fax: 91-422-2430657 Mob: 91-94438 89891
>

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   Dr. Xunqiang Bi         email:bixq at ictp.it
   Earth System Physics Group
   The Abdus Salam ICTP
   Strada Costiera, 11
   P.O. BOX 586, 34100 Trieste, ITALY
   Tel: +39-040-2240302  Fax: +39-040-2240449
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