globalchange  > 影响、适应和脆弱性
DOI: 10.1002/2017MS001064
Scopus记录号: 2-s2.0-85034436494
论文题名:
Single-Column Model Simulations of Subtropical Marine Boundary-Layer Cloud Transitions Under Weakening Inversions
作者: Neggers R; A; J; , Ackerman A; S; , Angevine W; M; , Bazile E; , Beau I; , Blossey P; N; , Boutle I; A; , de Bruijn C; , Cheng A; , van der Dussen J; , Fletcher J; , Dal Gesso S; , Jam A; , Kawai H; , Cheedela S; K; , Larson V; E; , Lefebvre M; -P; , Lock A; P; , Meyer N; R; , de Roode S; R; , de Rooy W; , Sandu I; , Xiao H; , Xu K; -M
刊名: Journal of Advances in Modeling Earth Systems
ISSN: 19422466
出版年: 2017
卷: 9, 期:6
起始页码: 2385
结束页码: 2412
语种: 英语
英文关键词: Boundary layers ; Large eddy simulation ; Parameterization ; Turbulent flow ; Intercomparisons ; Marine boundary layer clouds ; North-eastern Pacific ; Single column model simulations ; Single-column model ; Subgrid parameterization ; Vertical resolution ; Weather and climate models ; Climate models ; boundary layer ; climate modeling ; cloud cover ; inverse analysis ; large eddy simulation ; radiative transfer ; simulation ; underwater environment ; Atlantic Ocean ; Atlantic Ocean (Northeast) ; Pacific Ocean ; Pacific Ocean (Northeast)
英文摘要: Results are presented of the GASS/EUCLIPSE single-column model intercomparison study on the subtropical marine low-level cloud transition. A central goal is to establish the performance of state-of-the-art boundary-layer schemes for weather and climate models for this cloud regime, using large-eddy simulations of the same scenes as a reference. A novelty is that the comparison covers four different cases instead of one, in order to broaden the covered parameter space. Three cases are situated in the North-Eastern Pacific, while one reflects conditions in the North-Eastern Atlantic. A set of variables is considered that reflects key aspects of the transition process, making use of simple metrics to establish the model performance. Using this method, some longstanding problems in low-level cloud representation are identified. Considerable spread exists among models concerning the cloud amount, its vertical structure, and the associated impact on radiative transfer. The sign and amplitude of these biases differ somewhat per case, depending on how far the transition has progressed. After cloud breakup the ensemble median exhibits the well-known “too few too bright” problem. The boundary-layer deepening rate and its state of decoupling are both underestimated, while the representation of the thin capping cloud layer appears complicated by a lack of vertical resolution. Encouragingly, some models are successful in representing the full set of variables, in particular, the vertical structure and diurnal cycle of the cloud layer in transition. An intriguing result is that the median of the model ensemble performs best, inspiring a new approach in subgrid parameterization. © 2017. The Authors.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/75721
Appears in Collections:影响、适应和脆弱性
气候变化与战略

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作者单位: Institute for Geophysics and Meteorology, Department of Geosciences, University of Cologne, Cologne, Germany; Royal Netherlands Meteorological Institute, De Bilt, Netherlands; NASA Goddard Institute for Space Studies, New York, NY, United States; CIRES, University of Colorado, Boulder, CO, United States; NOAA Earth System Research Laboratory, Boulder, CO, United States; Météo France/CNRM, Toulouse, France; Météo France/ENM, Toulouse, France; Department of Atmospheric Sciences, University of Washington, Seattle, WA, United States; Met Office, Exeter, United Kingdom; NOAA Center for Weather and Climate Prediction, Environmental Modeling Center, College Park, MD, United States; Department of Geoscience and Remote Sensing, Delft University of Technology, Delft, Netherlands; University of Leeds, Leeds, United Kingdom; Météo-France/CNRM & CNRS/IPSL/LMD, Toulouse, France; Meteorological Research Institute, Climate Research Department, Japan Meteorological Agency, Tsukuba, Japan; Department of Atmosphere in the Earth System, Max-Planck Institut für Meteorologie, Hamburg, Germany; Department of Mathematical Sciences, University of Wisconsin-Milwaukee, Milwaukee, WI, United States; Section of Physical Aspects, European Centre for Medium-Range Weather Forecasts, Reading, United Kingdom; University of California at Los Angeles, Los Angeles, CA, United States; Pacific Northwest National Laboratory, Richland, WA, United States; NASA Langley Research Centre, Hampton, VA, United States

Recommended Citation:
Neggers R,A,J,et al. Single-Column Model Simulations of Subtropical Marine Boundary-Layer Cloud Transitions Under Weakening Inversions[J]. Journal of Advances in Modeling Earth Systems,2017-01-01,9(6)
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