Limitations of Some Common Lateral Boundary Schemes used in Regional NWP Models

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  • 1 Laboratory Atmospheric Physics ETH, Hönggerberg, 8093 Zürich
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Abstract

A brief critical assessment is presented of several lateral boundary schemes currently employed in regional weather prediction models. Simple flow models are used to determine the nature and cause of the primary shortcomings of each of the considered schemes. An awareness of these deficiencies can prove helpful in the implementation and further refinement of these schemes, and also in the interpretation of the resulting prediction errors.

Abstract

A brief critical assessment is presented of several lateral boundary schemes currently employed in regional weather prediction models. Simple flow models are used to determine the nature and cause of the primary shortcomings of each of the considered schemes. An awareness of these deficiencies can prove helpful in the implementation and further refinement of these schemes, and also in the interpretation of the resulting prediction errors.

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