afd resulted in "keep"; redirecting to geodesic grid
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#REDIRECT [[Geodesic grid]]
{{Orphan|date=November 2006}}
{{importance|date=November 2006}}
{{Cleanup|date=November 2006}}
'''Icosahedral–hexagonal grids in weather prediction''' are used in a numerical approach to [[weather prediction|weather]], ocean and [[climate prediction]] which uses [[geodesic]] grids generated from an [[icosahedron]] and could become an attractive alternative to current climate models.
The original works of the use of the icosahedral grid in the geophysical problem date back to Williamson (1968) and Sadourny ''et al.'' (1968). These works were followed by (Williamson, 1969; Cullen, 1974; Cullen and Hall, 1979; Masuda and Ohnishi, 1986).
In the 1990s, several research groups have developed icosahedral gridpoint General circulation models using their own new techniques such as, [[GME of Deutscher Wetterdienst]] for the numerical prediction model (Majewski ''et al.'', 2002)., ICON GCM: ICOsahedral Non-hydrostatic General Circulation Model joint project between Max Planck Institute for Meteorology (MPI-M) and the Deutscher Wetterdienst (DWD), CSU AGCM (Atmospheric General Circulation Model) at Colorado State University (Heikes and Randall 1995a, b; Randall ''et al.'', 2000, Randall ''et al.'', 2002; Ringler ''et al.'',2000) and Nonhydrostatic Icosahedral Atmospheric model of Frontier Research Center for Global Change (Tomita ''et al.'', 2001,2002; Tomita and Satoh, 2004).
