Re: Netcdf-Java guidance needed

[David Leserman <david@xxxxxxxxxxxx>]

Hi, John.

Thanks very much for your pointers. I'm embarrassed that I did not see  
the netcdf/examples/programs link. I think I was suffering  
considerable information overload trying to figure out how to easily  
access the contents of the MADIS files I started with. The Java  
examples look very nice and clean. I wish I'd pursued that approach  
sooner. In any case, earlier last week Jeff (support-idv@xxxxxxxxxxxxxxxx 
) steered me over to http://www.met.utah.edu where I found I could  
download the variables that I needed for a single station by the  
month. So, I'd begun that approach before I heard back from you and  
it's seemed to work out OK. If I need to go back for more data, I may  
try the Java approach.

So, thank you all, Dave, Jeff, and John.

Best wishes,

David


On Apr 10, 2009, at 11:11 AM, John Caron wrote:

> Hi David:
>
>  http://www.unidata.ucar.edu/software/netcdf/examples/programs/
>
> has some complete programs that should be helpful.
>
>
>
> David Leserman wrote:
> > Hi, John.
> >
> > Browsing the http://www.unidata.ucar.edu/software/netcdf-java/, I see
> > that you've written a lot of the documentation and that you're the
> > THREDDS, NetCDF-Java expert at Unidata, so I pose my query to you.
> >
> > I find extensive documentation for the details of NetCDF-Java on  
> > the web
> > site. What I can't find is any example of a complete Java program  
> > that
> > would be used to access some data. I believe that with one or two
> > examples, I could complete my task (described below). Can you  
> > direct me
> > to such an example? If you're not the person to ask, can you suggest
> > someone else?
> >
> > I'm an individual attempting to use MADIS datasets to glean a few
> > parameter values for a single station, KBJC, for every hour for 3+
> > years. I'm looking for the METAR values for SKYCVLB (sky cover layer
> > base), DD (wind direction), FF (wind speed), FFGUST (wind gust), VIS
> > (visibility), PCP1H (accumulated precip - 1h), and PCPRATE
> > (precipitation rate).
>
> we dont yet have the MADIS data being served through a THREDDS Data  
> Server. We are working on that and will keep you informed. You might  
> look at our experimental METAR server at
>
>  http://motherlode.ucar.edu:8080/thredds/ncss/metars/dataset.html
>
> this service will be up and down, but any feedback would be  
> appreciated.
>
> good luck!
>
>
> > I use a Mac, I did some Java programming 10 years ago, and I did some
> > consulting for Dave Fulker at Unidata about 15 years ago, so Netcdf- 
> > Java
> > is an approach that appeals to me. I've already downloaded 0.25 TB of
> > MADIS files from pftp.madis-fsl.org. (It would have been better to  
> > glean
> > the little bit of data I needed via a server, but I was ignorant, and
> > now I have the data here, so I might as well use it.)
> >
> > Thanks very much for whatever guidance and or pointers you can  
> > provide.
> >
> > Best regards,
> >
> > David Leserman
> > 303.931.2475