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The characteristics of the orographic flow blocking parametrization used in the Met Office Unified Model are examined in a one‐dimensional framework. This approach allows feedback of the parametrized stresses on the winds resulting, in some cases, in stresses very different from those that would be obtained without this feedback. The key controlling non‐dimensional parameters are identified, and the implications of the results for the use of the scheme in climate and numerical weather‐prediction models are discussed.
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Brown et al. (2004) studied this question.
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