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Addition of orography to the semi-implicit version of the Shuman-Hovermale model
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1978
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Description:The semi-implicit version of the ShumanHovermale model now includes orography. The incorporation of mountains into the model was made with great difficulty and is documented in this report. Care must be taken when splitting the pressure gradient term in the equations of motion into implicit and explicit parts. The orographic effect on the pressure gradient term is exhibited in two ways—as the gradient of surface geopotential and as the gradient of surface pressure. These two effects must be calculated together as either implicit or explicit parts in order that the long time step will not cause serious orographic-related truncation errors. Necessary changes to model equations are documented.
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Rights Information:CC0 Public Domain
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