[gradsusr] help: lats4d

[Arlindo da Silva]

On Thu, Nov 25, 2010 at 9:47 PM, Marcelino II Villafuerte <
mqvillafuerte at gmail.com> wrote:

> Hi,
>
> I'm trying to regrid aphrodite rainfall data which is .25x.25 deg
> resolution(monsoon Asia Domain: 14.875S-54.875N, 60.125N-149.875N ) to match
> with my model output which resolution is also .25x.25 deg (Philippines
> Domain: 4N-25N,115E-140E) although they have similar resolution, their grid
> points do not match (i.e. model's lat 4N while Aphrodite's lat 4.125) is
> lats4d appropriate to solve this problem?
>
> I really need your expertise.. Thank you very much in advance!
>


Have you read the manual?

  lats4d.sh -h

Basically, you need a valid grads redable file/ctl at your final
destination; this file is used to define your final dimension environment
(-de option). For the sake of argument, let's call this file phillipines.ctl
(could be philippines.nc as well). Then

% lats4d.sh -i asian.ctl -o newfile -de philippines.ctl -func 're(@,0.25)'

This will create newfile.nc. It is possible that you may need to be more
explicit with the re() arguments. Read the re documentation for syntax.

    Arlindo


> Mar
>
> On Tue, Nov 23, 2010 at 10:12 AM, Arlindo da Silva <dasilva at alum.mit.edu>wrote:
>
>>
>> On Mon, Nov 22, 2010 at 1:12 AM, Marcelino II Villafuerte <
>> mqvillafuerte at gmail.com> wrote:
>>
>>> Hi everyone,
>>>
>>> I want to compute the bias of my model results thus, I'm trying to use
>>> the lats4d so that they (i.e. Aphrodite & model netcdf files) may have
>>> equivalent resolution.
>>> But when I try to use the lats4d command this message is given: "Unknown
>>> command: lats4d".
>>> I'm using Grid Analysis and Display System (GrADS) Version 2.0.a9. It
>>> seems that the grads version i have in my linux (Fedora13) doesn't support
>>> LATS?
>>> Is there something I can do to solve this problem?
>>>
>>>
>> Just install the latest opengrads bundle; see here:
>>
>>
>> http://opengrads.org/wiki/index.php?title=Installing_the_OpenGrADS_Bundle
>>
>> Lats4d is included, nothing extra to install.
>>
>>     Arlindo
>>
>> --
>> Arlindo da Silva
>> dasilva at alum.mit.edu
>>
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>>
>>
>
>
> --
> ---------------------------------------
>
> Marcelino Q. Villafuerte II
> Weather Specialist I
> IAAS, CAD
> PAGASA-DOST
>
>
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>
>


-- 
Arlindo da Silva
dasilva at alum.mit.edu
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