Info on NcML Aggregation

[rsignell]

IOOS Modeling Folks:

Several folks have asked me about how to use NcML to perform different
types of aggregation. In addition to joining a bunch of files along a
time dimension, you can also union files together (useful when "u" "v"
"temp" and "salt" are in different files, for example) and join along
other dimensions. See these useful pages for more info on using NcML
aggregation:

http://www.unidata.ucar.edu/software/netcdf/ncml/v2.2/Aggregation.html
http://www.unidata.ucar.edu/software/netcdf/ncml/v2.2/Cookbook.html

-Rich