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RE: [thredds] Aggregating datasets



This is the xml:

<aggregation dimName="time" type="joinExisting">

<scan location="<locationhere>" suffix=".nc" subdirs="true"/>

</aggregation>

 

I saved the old dataset that was âbrokenâ, Iâll try to update to 4.6 and test it with the old/new one and see if that makes any difference.

 

Vladimir

 

 

From: John Caron [mailto:address@hidden
Sent: Wednesday, July 22, 2015 12:43 PM
To: Vladimir A Paramygin <address@hidden>
Cc: address@hidden
Subject: Re: [thredds] Aggregating datasets

 

What does your ncml aggregation xml look like?

 

The TDS opendap and ncss services use the same underlying objects, so something else is going on. Possibly an old version of the NCSS.

 

On Wed, Jul 22, 2015 at 10:33 AM, Vladimir A Paramygin <address@hidden> wrote:

I just changed the netcdf time variable so that they all reference the exact same time. So now XXXX =  Jan 1, 1900. Whereas before it was basically the time of model initialization. I guess opendap and ncss handle things differently and opendap does compute the time variables correctly when the time reference between the two files is different but ncss doesnât.

 

Vladimir

 

From: John Caron [mailto:address@hidden]
Sent: Wednesday, July 22, 2015 12:12 PM
To: Vladimir A Paramygin


Subject: Re: [thredds] Aggregating datasets

 

So how did you fix it?

 

On Wed, Jul 22, 2015 at 9:14 AM, Vladimir A Paramygin <address@hidden> wrote:

John, thanks for reply. I think I solved it. The problem was that individual files were referenced to different times (i.e. time was defined as âseconds from XXXXâ where XXXX varied through files) and in this case opendap handled it just fine but ncss didnât like it.

 

Best,

Vladimir

 

From: John Caron [mailto:address@hidden]
Sent: Wednesday, July 22, 2015 11:11 AM
To: Vladimir A Paramygin
Cc: address@hidden
Subject: Re: [thredds] Aggregating datasets

 

Hi Vladimir :

I see you are running 4.3.23. Can you upgrade to to the latest stable release (4.6) ?

John

 

On Fri, Jul 10, 2015 at 2:21 PM, Vladimir A Paramygin <address@hidden> wrote:

Hi all,

 

I was wondering if someone can help me with data aggregation. I have a set of files that have identical structure and represent different time frames. Iâd like to merge them together into a single dataset. I am doing it as follows:

 

<aggregation dimName="time" type="joinExisting">

<scan location="<locationhere>" suffix=".nc" subdirs="true"/>

</aggregation>

 

The dataset is located here:

http://thredds.coastal.ufl.edu:8080/thredds/catalog.html?dataset=IRLAggWL

 

When I access it via opendap it seems like I can access the entire time duration (15 years worth) but the NetCDF subsetting only gives me whatever is in the last file of the join. Can someone help identify the problem? Iâd like to be able to access the full dataset via ncss.

 

Thanks.

 

Sincerely,

Vladimir


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