DOI: 10.1007/s00382-017-3885-5
Scopus记录号: 2-s2.0-85029439237
论文题名: Near-surface wind variability over the broader Adriatic region: insights from an ensemble of regional climate models
作者: Belušić A. ; Prtenjak M.T. ; Güttler I. ; Ban N. ; Leutwyler D. ; Schär C.
刊名: Climate Dynamics
ISSN: 9307575
出版年: 2018
卷: 50, 期: 2018-11-12 起始页码: 4455
结束页码: 4480
语种: 英语
英文关键词: Adriatic region
; Convection-resolving models
; CORDEX
; Regional climate models
Scopus关键词: climate modeling
; complex terrain
; computer simulation
; convective system
; ensemble forecasting
; numerical model
; QuikSCAT
; regional climate
; satellite data
; weather forecasting
; wind field
; Adriatic Sea
; Mediterranean Sea
英文摘要: Over the past few decades the horizontal resolution of regional climate models (RCMs) has steadily increased, leading to a better representation of small-scale topographic features and more details in simulating dynamical aspects, especially in coastal regions and over complex terrain. Due to its complex terrain, the broader Adriatic region represents a major challenge to state-of-the-art RCMs in simulating local wind systems realistically. The objective of this study is to identify the added value in near-surface wind due to the refined grid spacing of RCMs. For this purpose, we use a multi-model ensemble composed of CORDEX regional climate simulations at 0.11° and 0.44° grid spacing, forced by the ERA-Interim reanalysis, a COSMO convection-parameterizing simulation at 0.11° and a COSMO convection-resolving simulation at 0.02° grid spacing. Surface station observations from this region and satellite QuikSCAT data over the Adriatic Sea have been compared against daily output obtained from the available simulations. Both day-to-day wind and its frequency distribution are examined. The results indicate that the 0.44° RCMs rarely outperform ERA-Interim reanalysis, while the performance of the high-resolution simulations surpasses that of ERA-Interim. We also disclose that refining the grid spacing to a few km is needed to properly capture the small-scale wind systems. Finally, we show that the simulations frequently yield the accurate angle of local wind regimes, such as for the Bora flow, but overestimate the associated wind magnitude. Finally, spectral analysis shows good agreement between measurements and simulations, indicating the correct temporal variability of the wind speed. © 2017, Springer-Verlag GmbH Germany. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/109269
Appears in Collections: 影响、适应和脆弱性 气候变化事实与影响
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作者单位: Andrija Mohorovičić Geophysical Institute, Department of Geophysics, Faculty of Science, University of Zagreb, Zagreb, Croatia; Meteorological and Hydrological Service of Croatia (DHMZ), Zagreb, Croatia; Institute for Atmospheric and Climate Science, ETH Zürich, Zürich, Switzerland
Recommended Citation:
Belušić A.,Prtenjak M.T.,Güttler I.,et al. Near-surface wind variability over the broader Adriatic region: insights from an ensemble of regional climate models[J]. Climate Dynamics,2018-01-01,50(2018-11-12)