Re: [idvusers] How do you time step 3-hourly NARR data in the IDV?

• To: idvusers@xxxxxxxxxxxxxxxx
• Subject: Re: [idvusers] How do you time step 3-hourly NARR data in the IDV?
• From: John Caron <caron@xxxxxxxxxxxxxxxx>
• Date: Tue, 03 Jan 2012 19:05:15 -0700

John

On 1/3/2012 9:43 AM, Mike Umscheid wrote:

Thanks for the reply Tom,

I am not having any luck with 2 or 3... but it does sound like I need to
investigate option 1 as I am not all that familiar with NCML in combining
datasets.  The NARR data I have been using is straight from the NARR
catalog through the IDV (
http://nomads.ncdc.noaa.gov/thredds/catalog/narr/catalog.xml).  So I guess
what I would need to do then is save the individual hourly dataset as a
local grid (*.nc) and then use one of the available tools (I see something
called ToolsUI?) to merge the files into one netCDF?

Mike U

On Tue, Jan 3, 2012 at 9:50 AM, Tom Whittaker<whittaker@xxxxxxxx>  wrote:

Hi Mike...

The display rule is that if the data object has only one time, then it
is displayed along with all other "time steps"; hence, since both 18z
and 21z data have just one "time", they are displayed together.

I'm not familiar with the NARR data or how you are loading it, but
there are a couple of ways to make individual time period data be
combined:

1. using NCML to logically combine times
2. using the Chooser and picking more than one time/file using
SHIFT+click or CTRL+click
3. using the Formula under "Miscellaneous ->  Make a time sequence from
single time grids"

Hope this helps.

tom

On Tue, Jan 3, 2012 at 9:13 AM, Mike Umscheid<mike.umscheid@xxxxxxxx>
wrote:

IDV Users,

I'm not sure how many of you interrogate NARR datasets on the IDV, but

I'm

doing more of it now through the IDV using bundles and ISL scripts.  One
big limitation I am finding is that I cannot time step/animate through

more

than one data file on the Map View pane.  For instance, if you load in
fields from an 18z file and then also a 21z file, the IDV just displays

the

21z data right on top of the 18z data.  How do you configure the IDV such
that for these hourly dataset files you can create animations and step

back

and forth through various times?  Any help/guidance is appreciated!

  Thanks,

Mike U
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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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• Follow-Ups:
  • Re: [idvusers] How do you time step 3-hourly NARR data in the IDV?
    • From: Don Murray

• References:
  • [idvusers] How do you time step 3-hourly NARR data in the IDV?
    • From: Mike Umscheid
  • Re: [idvusers] How do you time step 3-hourly NARR data in the IDV?
    • From: Tom Whittaker
  • Re: [idvusers] How do you time step 3-hourly NARR data in the IDV?
    • From: Mike Umscheid