Re: [las_users] 5th Dimension

[Steve Hankin <Steven.C.Hankin@xxxxxxxx>]

Hi Michael,

Unidata is working on this problem in their latest THREDDS Data Server 
(TDS), which handles aggregation.  You can check out the proposed spec at
   
http://www.unidata.ucar.edu/software/netcdf/ncml/v2.2/ModelAggregation.html

If you have GRIB data (one time step per file), you may be able to do 
this right now with a GDS and a sufficiently artful way to configure it.

The hard part seems to be in how to "aggregate" (pick and choose) the 
time steps.  Setting up LAS should be relatively straightforward after 
that.  You could use the configurable LAS "categories" to allow your 
users to select among the many time series that can be aggregated (as 
per the Unidata spec.).

   - steve

==============================

Godin, Michael wrote:

> I am trying to serve a 5-D model forecast with dimensions of [nowcast
> time, forecast hours, depth, latitude, longitude].  I'd like users to be
> able to fix either the nowcast-time dimension or the forecast-hours
> dimension, and use the other time dimension as a normal time dimension. 
> Has anyone out there successfully (i.e., elegantly and intuitively)
> represented such a 5-dimensional gridded data set with a Live Access
> Server?
>
> Thanks, Mike
>
>  
--
--

Steve Hankin, NOAA/PMEL -- Steven.C.Hankin@noaa.gov
7600 Sand Point Way NE, Seattle, WA 98115-0070
ph. (206) 526-6080, FAX (206) 526-6744