[netCDFJava #MIY-264031]: gfs 384 data

Greetings Alex,

I've attached a sample java program that goes to our publicly accessible data 
server and grabs temperature value from the CONUS GFS 80KM grid, and then 
prints that value to the screen. To extend this simple program to data into an 
array, which is what you would want to do, check out the following site:

https://www.unidata.ucar.edu/software/netcdf-java/tutorial/NetcdfFile.html 
(particularly the section on "Manipulating data in Arrays")

and

https://www.unidata.ucar.edu/software/netcdf-java/tutorial/NetcdfDataset.html 
(NetcdfDataset.openFile is what the example java file uses)

as well as the general info in the tutorial here:

https://www.unidata.ucar.edu/software/netcdf-java/tutorial/index.html

Cheers!

Sean

> Hey,
> 
> Thanks for the links will check it out.
> 
> I am downloading files from the website.  Raw data is in grib/grib2 format.
> Now that we on the topic, can you point me to the java api for random
> access directly on the server, so I can only reap out the fields I need, if
> that is possible at all.
> 
> Thanks in advance, Alex.
> 
> 
> address@hidden> wrote:
> 
> > Greetings Alex,
> >
> > > Hi Sean,
> > >
> > > Thank you very much for the reply.  To answer your questions.
> > >
> > > Yes, I am reading gfs data.
> >
> > Where do you get the data? From a website, your own model run? Is the raw
> > data format in netCDF, grib?
> >
> > > I am planning to compare the runs, once the data extracted.
> > >
> > > I would like to keep the program 100% java if possible, which is reading
> > > the files, processing and saving.
> > >
> >
> > Keeping things 100% java should not be a problem. It may help to read
> > through some example programs (
> > http://www.unidata.ucar.edu/software/netcdf/examples/programs/) using
> > netCDF-Java to read files and access data, especially the following example
> > (
> > http://www.unidata.ucar.edu/software/netcdf/examples/programs/Sfc_pres_temp_rd.java).
> > If you are able to open your files and read data from the variables, it
> > should be relatively straightforward to dump the data you need to a format
> > of your choice.
> >
> > Cheers,
> >
> > Sean
> >
> > >
> > >
> > > Regards,
> > >
> > > Alex Friedman
> > >
> > > address@hidden> wrote:
> > >
> > > > Greetings Alex,
> > > >
> > > > > Hi,
> > > > >
> > > > > I am very new to the api.
> > > >
> > > > Welcome to netCDF-Java!
> > > >
> > > > >  My ultimate goal is to translate raw gfs data
> > > > > into a table in memory with 3 columns long, lat and temp.
> > > > > Is this doable using java api?  Could you point me to the right
> > > > direction?
> > > > >
> > > > > I am parsing the file fine and creating the dataset, I am having
> > problems
> > > > > understanding how I can output the table and what classes should I
> > use.
> > > >
> > > > If I understand correctly, you wish to extract long, lat, and temp, and
> > > > save the data in something like a comma delimited ASCII file? This is
> > > > indeed possible; however, for clarification purposes, what is your
> > planned
> > > > use for the data once you have extracted long, lat, and temp? Also,
> > where
> > > > are you obtaining the GFS data? I ask because their may be a very easy
> > way
> > > > to get what you desire.
> > > >
> > > > Cheers!
> > > >
> > > > Sean
> > > >
> > > > >
> > > > > Thank you in advance,
> > > > >
> > > > > Alex.
> > > > >
> > > > >
> > > >
> > > >
> > > > Ticket Details
> > > > ===================
> > > > Ticket ID: MIY-264031
> > > > Department: Support netCDF Java
> > > > Priority: High
> > > > Status: Open
> > > >
> > > >
> > >
> > >
> >
> >
> > Ticket Details
> > ===================
> > Ticket ID: MIY-264031
> > Department: Support netCDF Java
> > Priority: High
> > Status: Open
> >
> >
> 
> 


Ticket Details
===================
Ticket ID: MIY-264031
Department: Support netCDF Java
Priority: High
Status: Open