More on cooridnates
•3 cases are
prepared
–point sampling
–cell type
–simple sequence
(though it’s not physical)
x
x
x
x
x
point sampling
cell type
（Here, coordinate variables can represent either bound-
aries (|) or
representative locations such as centers (x).
x
x
x
x
x
•For instance, how to integrate along an axis is known by the axis. GPhys simply requests the
integration to its Grid, and the Grid ask it to the corresponding Axis. By default, trapezoidal formula is used if point samples or cell boundaries. (can be changed by users)
•If NetCDF data are read, those types are configured if the convention used supports such discrimination. (so far, convention support is weak, though)