气候变化领域集成服务门户(CCPortal): COnstraining ORographic Drag Effects (COORDE): A Model Comparison of Resolved and Parametrized Orographic Drag

CCPortal

DOI	10.1029/2020MS002160
	COnstraining ORographic Drag Effects (COORDE): A Model Comparison of Resolved and Parametrized Orographic Drag
	van Niekerk A.; Sandu I.; Zadra A.; Bazile E.; Kanehama T.; Köhler M.; Koo M.-S.; Choi H.-J.; Kuroki Y.; Toy M.D.; Vosper S.B.; Yudin V.
发表日期	2020
ISSN	19422466
卷号	12 期号:11
英文摘要	The parametrization of orographic drag processes is a major source of circulation uncertainty in models. The COnstraining ORographic Drag Effects (COORDE) project makes a coordinated effort to narrow this uncertainty by bringing together the modeling community to: explore the variety of orographic drag parametrizations employed in current operational models; assess the resolution sensitivity of resolved and parametrized orographic drag across models; and to validate the parametrized orographic drag in low-resolution simulations using explicitly resolved orographic drag from high-resolution simulations. Eleven models from eight major modeling centers are used to estimate resolved orographic drag from high-resolution (km-scale) simulations and parametrized orographic drag from low-resolution simulations, typically used for seasonal forecasting (∼40 km) and climate projections (∼100 km). In most models, at both seasonal and climate resolutions, the total (resolved plus parametrized) orographic gravity wave drag over land is shown to be underestimated by a considerable amount (up to 50%) over the Northern and Southern Hemisphere and by more than 60% over the Middle East region, with respect to the resolved gravity wave drag estimated from km-scale simulations. The km-scale simulations also provide evidence that the parametrized surface stress and the parametrized low-level orographic drag throughout the troposphere are overestimated in most models over the Middle East region, particularly at climate resolutions. Through this process-based evaluation, COORDE provides model developers new valuable information on the current representation of orographic drag at seasonal and climate resolutions and the vertical partitioning of orographic low-level and gravity wave drag. ©2020. The Authors.
英文关键词	atmospheric modelling; boundary layer meteorology; gravity wave drag; numerical weather prediction; orographic drag; stratospheric dynamics
语种	英语
scopus关键词	Climate models; Gravity waves; Uncertainty analysis; Climate projection; High resolution simulations; Operational model; Orographic gravity waves; Parametrized surfaces; Seasonal forecasting; Southern Hemisphere; Vertical partitioning; Drag; climate modeling; comparative study; detection method; drag; gravity wave; model; modeling; Northern Hemisphere; seasonal variation; simulation; Southern Hemisphere; troposphere; Middle East
来源期刊	Journal of Advances in Modeling Earth Systems
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/156577
作者单位	Met Office, Exeter, United Kingdom; European Centre for Medium-Range Weather Forecasts, Reading, United Kingdom; Atmospheric Numerical Weather Prediction Research Section, Environment and Climate Change Canada, Dorval, QC, Canada; National Centre for Meteorological Research, Météo-France, Toulouse, France; Japan Meteorological Agency, Tokyo, Japan; Deutscher Wetterdienst, Offenbach, Germany; Korea Institute of Atmospheric Prediction Systems, Seoul, South Korea; Korea Meteorological Administration, Seoul, South Korea; Cooperative Institute for Research in Environmental Sciences, University of Colorado, Boulder, CO, United States
推荐引用方式 GB/T 7714	van Niekerk A.,Sandu I.,Zadra A.,et al. COnstraining ORographic Drag Effects (COORDE): A Model Comparison of Resolved and Parametrized Orographic Drag[J],2020,12(11).
APA	van Niekerk A..,Sandu I..,Zadra A..,Bazile E..,Kanehama T..,...&Yudin V..(2020).COnstraining ORographic Drag Effects (COORDE): A Model Comparison of Resolved and Parametrized Orographic Drag.Journal of Advances in Modeling Earth Systems,12(11).
MLA	van Niekerk A.,et al."COnstraining ORographic Drag Effects (COORDE): A Model Comparison of Resolved and Parametrized Orographic Drag".Journal of Advances in Modeling Earth Systems 12.11(2020).