Coordinates over Complex Terrain in Atmospheric Model
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In the terrain following coordinate, Gal-Chen and Somerville (1975) and other proposed a vertical coordinate z*=(z-zb)/(zt-zb) and constant spatial intervals of dx* and dy*along the other directions. Because the variation of and was ignored, their coordinate does not really follow the terrain. It fails to reproduce the divergence and curl over a complex terrain. Aligning the coordinate with real terrain, the divergence and curl we obtained from the curvilinear coordinate are consistent with the Cartesian coordinate. With a modification, the simulated total mass, energy, and momentum from the Navier-Stokes equations are conserved and in agreement with those calculated from Cartesian coordinate.
2006 ◽
Vol 128
(6)
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pp. 1394-1399
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1994 ◽
Vol 113
(1)
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pp. 26-34
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2017 ◽
Vol 169
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pp. 290-307
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2004 ◽
Vol 199
(1)
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pp. 355-375
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2012 ◽
Vol 12
(4)
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pp. 1033-1050
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