Kurihara grid
From Glossary of Meteorology
Kurihara grid
A specific finite difference grid discretization designed to cover the entire globe with nearly uniform spacing.
Kurihara, Y., and L. Holloway 1967. Numerical integration of a nine-level global primitive equations model formulated by the box method. Mon. Wea. Rev.. 95. 509–530 (see especially fig. 5).