SciTools/iris — pull request #1251 by pp-mo (2014-07-25 16:44:18+00:00)
Title: UM fields array structure identification for fast loading.

Context:
The key external interface is "group_structured_fields" (in iris.fileformats.um._fast_load_structured_fields).
* this returns 'FieldCollation'-s ..
* .. which are in effect just triples of (vector_dims, dimension_elements, element_arrays_and_dims)
* .. so something else can turn those into cubes.

There is no actual user API yet.
Most probably will be an experimental 'iris.load'-like function, which to take filenames + return cubes.