Continuous structural parameterization: a proposed method for representing different model parameterizations within one structure demonstrated for atmospheric convection

Continuous structural parameterization (CSP) is a proposed method for approximating different numerical model parameterizations of the same process as functions of the same grid‐scale variables. This allows systematic comparison of parameterizations with each other and observations or resolved simul...

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Главные авторы: Lambert, FH, Challenor, PG, Lewis, NT, McNeall, DJ, Owen, N, Boutle, IA, Christensen, HM, Keane, RJ, Mayne, NJ, Stirling, A, Webb, MJ
Формат: Journal article
Язык:English
Опубликовано: American Geophysical Union 2020
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author Lambert, FH
Challenor, PG
Lewis, NT
McNeall, DJ
Owen, N
Boutle, IA
Christensen, HM
Keane, RJ
Mayne, NJ
Stirling, A
Webb, MJ
author_facet Lambert, FH
Challenor, PG
Lewis, NT
McNeall, DJ
Owen, N
Boutle, IA
Christensen, HM
Keane, RJ
Mayne, NJ
Stirling, A
Webb, MJ
author_sort Lambert, FH
collection OXFORD
description Continuous structural parameterization (CSP) is a proposed method for approximating different numerical model parameterizations of the same process as functions of the same grid‐scale variables. This allows systematic comparison of parameterizations with each other and observations or resolved simulations of the same process. Using the example of two convection schemes running in the Met Office Unified Model (UM), we show that a CSP is able to capture concisely the broad behavior of the two schemes, and differences between the parameterizations and resolved convection simulated by a high resolution simulation. When the original convection schemes are replaced with their CSP emulators within the UM, basic features of the original model climate and some features of climate change are reproduced, demonstrating that CSP can capture much of the important behavior of the schemes. Our results open the possibility that future work will estimate uncertainty in model projections of climate change from estimates of uncertainty in simulation of the relevant physical processes.
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spelling oxford-uuid:f6e38b0c-feac-4455-bcc9-a3709f340ddf2022-03-27T12:38:23ZContinuous structural parameterization: a proposed method for representing different model parameterizations within one structure demonstrated for atmospheric convectionJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:f6e38b0c-feac-4455-bcc9-a3709f340ddfEnglishSymplectic ElementsAmerican Geophysical Union2020Lambert, FHChallenor, PGLewis, NTMcNeall, DJOwen, NBoutle, IAChristensen, HMKeane, RJMayne, NJStirling, AWebb, MJContinuous structural parameterization (CSP) is a proposed method for approximating different numerical model parameterizations of the same process as functions of the same grid‐scale variables. This allows systematic comparison of parameterizations with each other and observations or resolved simulations of the same process. Using the example of two convection schemes running in the Met Office Unified Model (UM), we show that a CSP is able to capture concisely the broad behavior of the two schemes, and differences between the parameterizations and resolved convection simulated by a high resolution simulation. When the original convection schemes are replaced with their CSP emulators within the UM, basic features of the original model climate and some features of climate change are reproduced, demonstrating that CSP can capture much of the important behavior of the schemes. Our results open the possibility that future work will estimate uncertainty in model projections of climate change from estimates of uncertainty in simulation of the relevant physical processes.
spellingShingle Lambert, FH
Challenor, PG
Lewis, NT
McNeall, DJ
Owen, N
Boutle, IA
Christensen, HM
Keane, RJ
Mayne, NJ
Stirling, A
Webb, MJ
Continuous structural parameterization: a proposed method for representing different model parameterizations within one structure demonstrated for atmospheric convection
title Continuous structural parameterization: a proposed method for representing different model parameterizations within one structure demonstrated for atmospheric convection
title_full Continuous structural parameterization: a proposed method for representing different model parameterizations within one structure demonstrated for atmospheric convection
title_fullStr Continuous structural parameterization: a proposed method for representing different model parameterizations within one structure demonstrated for atmospheric convection
title_full_unstemmed Continuous structural parameterization: a proposed method for representing different model parameterizations within one structure demonstrated for atmospheric convection
title_short Continuous structural parameterization: a proposed method for representing different model parameterizations within one structure demonstrated for atmospheric convection
title_sort continuous structural parameterization a proposed method for representing different model parameterizations within one structure demonstrated for atmospheric convection
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