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[netCDFJava #CZW-502913]: combining satellite bands via ncml

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  • Subject: [netCDFJava #CZW-502913]: combining satellite bands via ncml
  • Date: Thu, 13 Feb 2014 10:14:30 -0700
I'll send this over to the McIdas and IDV teams for comment.

-Lansing

On 2/13/2014 8:57 AM, Joleen Feltz wrote:
> New Client Reply: combining satellite bands via ncml
>
> Hi,
>
> When the middle mouse button is pressed in either IDV or McIDAS-V a data 
> readout is displayed.  In the case of this aggregated file, no value is shown 
> for the aggregated data.
>
>
> On Feb 12, 2014, at 2:59 PM, Unidata netCDF Java Support wrote:
>
>> Hi Joleen,
>>
>> I wasn't sure what you meant by "middle mouse probe," so I asked someone 
>> over on the IDV team what it might be.  They were thinking you might mean 
>> the roller button, which may control zoom level, but I'm not so sure.  Can 
>> you clarify?
>>
>> I will grab some of the files you've posted and try to figure out what's 
>> going on.
>>
>> Regards,
>>   Lansing Madry
>>   Unidata
>>   Boulder, Colorado
>>
>>> Hi,
>>>
>>> I have written an ncml which aggregates bands by assigning a pressure level:
>>>
>>>> <?xml version="1.0" encoding="UTF-8"?>
>>>> <netcdf xmlns="http://www.unidata.ucar.edu/namespaces/netcdf/ncml-2.2";>
>>>>
>>>> <variable name="pressure" type="int">
>>>>    <attribute name="units" value="hPa"/>
>>>> </variable>
>>>>
>>>> <aggregation  dimName="pressure" type="joinNew">
>>>>    <variableAgg name="ABI_TBB_WV"/>
>>>>    <netcdf location="sim_abi_band08_2005_0604_2200utc.nc" coordValue="400">
>>>>       <variable name="ABI_TBB_WV" type="float"  orgName="ABI_TBB_08" />
>>>>    </netcdf>
>>>>    <netcdf location="sim_abi_band09_2005_0604_2200utc.nc" coordValue="500">
>>>>       <variable name="ABI_TBB_WV" type="float"  orgName="ABI_TBB_09" />
>>>>    </netcdf>
>>>>    <netcdf location="sim_abi_band10_2005_0604_2200utc.nc" coordValue="750">
>>>>       <variable name="ABI_TBB_WV" type="float"  orgName="ABI_TBB_10" />
>>>>    </netcdf>
>>>> </aggregation>
>>>>
>>>> <variable name="ABI_TBB_WV" type="float">
>>>>    <attribute name="long_name" type="string" value="ABI Brightness 
>>>> Temperature Water Vapor Bands" />
>>>> </variable>
>>>> </netcdf>
>>> While this produces a file which can be loaded into IDV, I cannot get any 
>>> information using the middle mouse probe.  Furthermore, when I try to use 
>>> this same technique on newer ABI data, the aggregation fails.  Is there a 
>>> way to make this work?  It is a very useful tool
>>>
>>> 1.)  Multiple bands can be loaded and displayed quickly.
>>> 2.)  The band data can be displayed roughly at a level that is appropriate
>>> 3.)  The instrument data can be viewed as a cross section
>>>
>>> I have placed the data and ncml on a ftp site:
>>> ftp://ftp.ssec.wisc.edu/pub/ssec/joleenf/
>>>
>>> and the new data is under
>>> ftp://ftp.ssec.wisc.edu/pub/ssec/joleenf/newGRBfiles/
>>>
>>> Thank-you for your assistance,
>>> Joleen
>>>
>>>
>>
>> Ticket Details
>> ===================
>> Ticket ID: CZW-502913
>> Department: Support netCDF Java
>> Priority: Normal
>> Status: Open
>>
>
>
>
> Ticket Details
> ===================
> Ticket ID: CZW-502913
> Department: Support netCDF Java
> Priority: Normal
> Status: Open
> Link:  
> https://www.unidata.ucar.edu/esupport/staff/index.php?_m=tickets&_a=viewticket&ticketid=23345



Ticket Details
===================
Ticket ID: CZW-502913
Department: Support netCDF Java
Priority: Normal
Status: Open