pydap.handlers.nca

A Pydap handler that allows aggregating multiple NetCDF into a single dataset. The configuration is extremely simple. As an example, to aggregate model output in different files (say, output1.nc, output2.nc, etc.) along a new axis "ensemble" just create an INI file with the extension .nca:

[dataset]
match = /path/to/output*.nc
axis = ensemble
; below optional metadata:
history = Test for NetCDF aggregator

[ensemble]
values = 1, 2, ...
long_name = Ensemble members

This will assign the values 1, 2, and so on to each ensemble member. Another example, suppose we have monthly data in files data01.nc, data02.nc, ..., data12.nc, and we want to aggregate along the TIME axis:

[dataset]
match = /path/to/data*.nc
axis = TIME  # existing axis

The handler currently works with NetCDF 3 files, but in the future it will be changed to work with any other Pydap-supported data format.