Version 5.1.3 of the netCDF Operators (NCO) has been released. NCO is an Open Source package that consists of a dozen standalone, command-line programs that take netCDF files as input, then operate (e.g., derive new data, average, print, hyperslab, manipulate metadata) and output the results to screen or files in text, binary, or netCDF formats.
The NCO project is coordinated by Professor Charlie Zender of the Department of Earth System Science, University of California, Irvine. More information about the project, along with binary and source downloads, are available on the SourceForge project page.
From the release message:
Version 5.1.3 improves the speed of vertical interpolation for
fields whose most-rapidly-varying dimension is the vertical (not
horizontal). This dramatically improves interpolation speed for
EAMxx/SCREAM files. This release also fixes and issue in using
ncremap to invoke the interpolation. Other than that, this release can
be skipped.
New Features
-
ncremapcan now vertically interpolate files/fields whose most rapidly varying dimension is the vertical without having to first permute the dimensions to be most rapidly varying in the horizontal dimension(s). This speeds up vertical interpolation of EAMxx/SCREAM fields dramatically (a factor of about three).ncremap --vrt_out=vrt.nc in.nc out.nc ncremap -P eamxx --vrt_out=vrt.nc in.nc out.nc
http://nco.sf.net/nco.html#ncremap
http://nco.sf.net/nco.html#vrt_out
Additional details are available in the ChangeLog.
