[netcdf-java] Documentation or Direction on defining dimensions of variables in DODSNetcdfFile

UCAR NetCDF mail group,

I am working on acquiring small amounts of GFS, NAM and RUC data from 
nomads.ncdc.noaa.gov.  As a test I am trying to collect the Temperature 
variable for a particular point.  I can easily acquire this data via my web 
browser with this link.  

I would like to collect this variable via the netcdf java library.  However I 
can't seem to find documentation on the correct use of the dimensions variables 
in the readSection or readArrays methods of the DODSNetcdfFile.  Could anyone 
please direct me to documentation for these?  I have found that even when I 
specifiy dimenions for a variable it still downloads the complete grid and 
takes much longer than the link above.

Here is an example of what I am trying to do.

String modelFile = 
DODSNetcdfFile ncfile = new DODSNetcdfFile( modelFile );

Dimension time = new Dimension("time", 1);
                Dimension pressure = new Dimension("pressure",1);
                Dimension xd = new Dimension("x", 126);
                Dimension yd = new Dimension("y", 557);

                List<Dimension> ds = new ArrayList<Dimension>();

for(Variable v : ncfile.getVariables()){

List<Array> arrays = ncfile.readArrays( preloadVariables );

Here I get the variable for temperature, but I get the whole set, and not a set 
limited by the dimensions that I set.

Jacob Sheck

CONFIDENTIALITY NOTICE: This e-mail message is for the sole use of the intended 
recipient(s) and may contain confidential and privileged information. Any 
unauthorized review, use, disclosure or distribution of any kind is strictly 
prohibited. If you are not the intended recipient, please contact the sender 
via reply e-mail and destroy all copies of the original message. Thank you.

  • 2011 messages navigation, sorted by:
    1. Thread
    2. Subject
    3. Author
    4. Date
    5. ↑ Table Of Contents
  • Search the netcdf-java archives: