GPhys (Gridded Physical quantity)
a GPhys
has 1
array data (VArray)
grid (Grid)
has 1
axis(Axis)
has rank
coord.var.(VArray)1D
others (VArray)1D
has 1
has 0..
AssocCoords (GPhys) Multi-D
has 0..
(new) trans-
formed grid
VArray (Virtual Array) – Abstracts Data Storage
(Can be in file(s) or multi-D Array on memory; can also
be a subset or aggregation of (an)other VArray(s))