Re: [cf-satellite] Satellite Winds in CF conventions

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You have mentioned in your mail that we can treat wavelength as coordinate
variable but current netcdf C and java does not have such support, how to
validate the products generated. Please note I am writing products in hdf5
format but following cf conventions.
Regards
Ghansham

On Tuesday, April 23, 2013, rhorne@xxxxxxxxxxxxxxxxx <
rhorne@xxxxxxxxxxxxxxxxx> wrote:
> Hi Gansham:
>
>
>
> In addition to what Tom stated, you can treat the wavelengths as
coordinate variables (in addition to lat, lon, and time).  If you want to
capture the bandpass associated with the wavelengths, you can use attach a
boundary variable to the wavelenght coordinate variable.
>
>
>
> Note that I am working the next generation GOES system and we have a
dervied motion winds product that is very similar to yours.
>
>
>
>
>
> very respectfully,
>
>
>
> randy
>
> ________________________________
> From: "Tom Whittaker" <whittaker@xxxxxxxx>
> Sent: Tuesday, April 23, 2013 10:17 AM
> To: "ghansham sangar" <ghanshamsangar@xxxxxxxxx>
> Cc: "cf-satellite" <cf-satellite@xxxxxxxxxxxxxxxx>
> Subject: Re: [cf-satellite] Satellite Winds in CF conventions
>
> Hello Gansham...
> I would recommend that you use the "point" form and  treat each unique
location as a separate "record", using the form defined here:
> <
http://cf-pcmdi.llnl.gov/documents/cf-conventions/1.6/cf-conventions.html#idp8294224
>
> using a 'featureType="point" ' global attribute (see:
> <
http://www.unidata.ucar.edu/software/netcdf-java/reference/FeatureDatasets/CFpointImplement.html
>
> Best wishes,
> tom
>
> On Mon, Apr 22, 2013 at 9:03 PM, ghansham sangar <ghanshamsangar@xxxxxxxxx>
wrote:
>>
>> R/Sir
>>
>> I want to understand how to pack satellite wind data coming from
>> different channels into product.
>> the winds data is pretty much a point data.
>> Lat,Lon, U_COMP, V_COMP, WS, WDIR.......
>> And in addition we have winds for three different channels:
>> VIS, IR and WV.
>> So the winds from the different channels may not be co-located.
>> All have different lat/lon associated with them.
>> So what could be the best way to pack them within a product
>> as per the conventions.
>> If we have some sample products, then it will be really appreciated.
>> regards
>> Ghansham
>>
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>>
>
>
>
> --
> Tom Whittaker
> University of Wisconsin-Madison
> Space Science & Engineering Center (SSEC)
> Cooperative Institute for Meteorological Satellite Studies (CIMSS)
> 1225 W. Dayton Street
> Madison, WI  53706  USA
> ph: +1 608 262 2759
>
>
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