[Geotools-devel] Re: [Geoserver-devel] Re: [Geoserver-users] netcdf - wcs resource

[simone g. <sim...@gm...>]

HI List, Hy guys,
I am jumping in the conversion quite late, but I was stuck on another
project, sorry.

I see a lot of interest around netCDF and NdCoverages, with plenty of
good ideas to share, therefore my suggestion is, as we already did, to
arrange an IRC session to dig a bit in each others needs, to share
each others' point of view and to lay down a some steps to perform.=20
If we share the load we could come up with something really good.

A branch both in geotools and in geoserver has been created for the
coverages experiment, next week I should commit some new code to
geotools since I put the old plugins in a much better fit.

At my centre too, they are really interested in netCDF support,
therefore I will spend for sure quite some time next year on
supporting them. I would not mind sharing the work with someone else
with similar requirements. We already met with Bryce Nordgren but if
someone else is willing to join the effort is more than welcome.

I hope to hear good news soon.

Simone.

On 12/1/05, Efren Serra <efr...@me...> wrote:
> Folks,
>
> Thank you for the references below.  I am going to take a look at them.
>
> v/r,
> Efren
>
> -----Original Message-----
> From: Woolf, A (Andrew) [mailto:A....@rl...]
> Sent: Thursday, December 01, 2005 12:32 AM
> To: Rob Atkinson; efr...@me...
> Cc: Alexander Petkov; Norman Barker;
> geo...@li...; Dietmar Muller; Keiran Millard;
> geotools-devel; Amit Parashar
> Subject: RE: [Geoserver-devel] Re: [Geoserver-users] netcdf - wcs
> resource
>
>
> Hi Rob,
>
> > am currently trying to organise some effort to get a major
> > new geotools enhancement (Complex features) into the
> > Geoserver head, and the WCS support is an obvious target to
> > try to roll in. Would be grateful if you can identify any
> > issues, futher development work required to roll that in, and
> > also if any committed effort for this can be rolled into my
> > project plan as in-kind support. This sort of in-kind support
> > will help make the case for the bits of cash we are chasing
> > to support UI upgrades for the new stuff etc.
>
> Usual story - really want this, but no effort to put in...  :-(
>
> > Is there a UI config for the new WCS stuff? If not, what
> > needs to be done?
>
> If you stick with a small subset (perhaps one) of netCDF conventions you
> can imagine a netCDF collection 'scanner' that picks out e.g.
> spatiotemporal metadata defined by those conventions across the fileset,
> and presents additional configurable options in a GUI. We're working on
> this in NERC DataGrid for CSML - rather than geoserver config -
> generation.
>
> > In general - we have two requirements in the medium term:
> > 1) auto-configure WCS for a catalogue of NetCDF files, to
> > support subsetting actions easily having found a netCDF file
> > in a catalogue
>
> In most atmos/ocean use cases you don't want file-level discovery. You
> want the aggregated (timeseries) dataset.
>
> > 2) be able to subset (in a single WCS call)  from collections
> > of netCDF files across both spatial and temporal dimensions.
>
> Yep.
>
> > Also, there are many netCDF conventions - what is the
> > expected level of support and configurability?
>
> The 'CF' conventions for atmos/ocean data are the canonical standard:
> http://www.cgd.ucar.edu/cms/eaton/cf-metadata/CF-1.0.html
> though (as far as I'm aware) not implemented in full *anywhere*.
> However, an incremental approach can be taken - e.g. starting with
> independent spatiotemporal coord vbls
> (http://www.cgd.ucar.edu/cms/eaton/cf-metadata/CF-1.0.html#grid_ex1),
> then sorting 'auxiliary coord vbls'
> (http://www.cgd.ucar.edu/cms/eaton/cf-metadata/CF-1.0.html#grid_ex2)
> etc... A large amount of deployed met/ocean netCDF is covered by a small
> subset of CF.
>
>
>
>
>
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