Re: remap MODIS data to WRF domain by ESMF

From: Liu, Peng <pliu34_at_nyahnyahspammersnyahnyah>
Date: Fri Oct 26 2012 - 15:56:54 MDT

Dear Mary,
  Thank you for the help. I am trying to use MODIS L3 data which is in sinusoidal projection. I just want to make sure
that sinusoidal projection is curvilinear so that ESMF can deal with it, doesn't it?

Thanks again

Peng
----- Original Message -----
From: Mary Haley <haley@ucar.edu>
To: Peng Liu <pliu34@gatech.edu>
Cc: ncl-talk@ucar.edu
Sent: Fri, 26 Oct 2012 11:06:00 -0400 (EDT)
Subject: Re: remap MODIS data to WRF domain by ESMF

Peng,

You can set the special SrcMask2D resource to indicate where your missing values are. You have to give it an integer array that is the same size as your data, where "1" indicates valid values, and 0 indicates missing values.

Something like:

Opt@SrcMask2D = where(.not.ismissing(data),1,0)

--Mary

On Oct 26, 2012, at 8:21 AM, Liu, Peng wrote:

> Dear NCL usres,
> I am trying to remap the 1km MODIS data to a 4km resolution WRF domain and have a question about dealing with satellite data with ESMF, that is how the regrid method deal with the missing value in satellite data?(e,g. I need surface temperature from MODIS,hence no data exist when cloud exists)
>
> Thanks a lot
>
> Peng
> ----- Original Message -----
> From: Dennis Shea <shea@ucar.edu>
> To: Peng Liu <pliu34@gatech.edu>
> Cc: ncl-talk@ucar.edu
> Sent: Thu, 25 Oct 2012 16:26:01 -0400 (EDT)
> Subject: Re: remap MODIS data to WRF domain
>
> ESMF: 6.1.0 (released very soon)
>
> There are numerous ESMF examples:
>
> http://www.ncl.ucar.edu/Applications/ESMF.shtml
>
> If the 1km MODIS is a 'swath', then there are 2 examples that
> start with swath data (source file): Examples 8 and 15
>
> The WRF grid is a curvilinear grid. There are numerous
> examples where the destination grid is curvilinear.
> One has WRF as a destination grid: Example 20.
>
> You can extract and modify as necessary.
>
> On 10/25/12 1:24 PM, Liu, Peng wrote:
>> Dear NCL users,
>> I am trying to remap the 1km MODIS data to a 4km resolution WRF domain, and I wonder is there any example that I can refer to and what functions in NCL
>> are able to achieve this?
>>
>> thanks in advance
>>
>>
>> Peng
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>
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Received on Fri Oct 26 15:57:03 2012

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