Version 4.4.1 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:
This release is mainly a bugfix release for power users. If you use
NCO's ncea, ncra, or ncrcat version 4.3.9-4.4.0 on
hundreds-to-thousands of input files per invocation, then you may
wish to upgrade. This release fixes a bug that could cause
ncea/ncra/ncrcat to fail on large numbers (> 256) of input files.
This is embarassing because NCO has always been designed to work with
arbitrary numbers of input files and we want power users to be
comfortable running it on hundreds of thousands of input files.
So we're releasing 4.4.1 to fix this bug for power users.
See this description of the problem for details.
There are also a few new features: NCO now supports full path names
for dimension arguments to chunking (--cnk_dmn), and supports using
most-in-scope latitude/longitude for auxiliary coordinates (-X).
Additional details are available in the ChangeLog.
