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NOTICE: This version of the NSF Unidata web site (archive.unidata.ucar.edu) is no longer being updated.
Current content can be found at unidata.ucar.edu.
To learn about what's going on, see About the Archive Site.
Hi Tom, Luis,I think support already exists in IDV to handle file aggregating from netcdf grids, such as those in WRF. In Data Choosers, select "Aggregate WRF netCDF grids by Time", and use Shift or Ctrl to highlight multiple netcdf files. This should accomplish the goal of presenting the sequence of files as a single file to the IDV.
Regards, Kevin ______________________________________________________________________ Kevin Tyle, Systems Administrator ********************** Dept. of Atmospheric & Environmental Sciences ktyle@xxxxxxxxxxxxxxxx University at Albany, ES-235 518-442-4578 (voice) 1400 Washington Avenue 518-442-5825 (fax) Albany, NY 12222 ********************** ______________________________________________________________________ On 06/01/2010 04:52 PM, Tom Whittaker wrote:
Luis --Ok I understand and It must help but my input data is all from WRF in netcdf and is choppy in files per hours and have a lot of variables so when I pick the sum over time steps it says to me that I need to pick a field. My issue is how can I select one variable per hour to do the accumulation.If I understand, you have separate files for each hour of your WRF data? If that is the case, you might be able to use NCML to aggregate your files so they "appear" to be in a single file. The idea is that your create a small text file (the NCML) which logically combines your individual files and creates a new "dimension" called "time"; you then point the IDV at this NCML file and the NetCDF library presents the sequence of your files as a single file to the IDV. I have used this technique for this type of data (one hour per file)....see <http://www.unidata.ucar.edu/software/netcdf/ncml/v2.2/Aggregation.html> for information about using this. But....that's about all I know about it! tom
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