| DOI: | 10.1002/2016GL068829
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| 论文题名: | Benchmarking Northern Hemisphere midlatitude atmospheric synoptic variability in centennial reanalysis and numerical simulations |
| 作者: | Dell'Aquila A.; Corti S.; Weisheimer A.; Hersbach H.; Peubey C.; Poli P.; Berrisford P.; Dee D.; Simmons A.
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| 刊名: | Geophysical Research Letters
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| ISSN: | 0094-9652
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| EISSN: | 1944-9383
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| 出版年: | 2016
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| 卷: | 43, 期:10 | | 起始页码: | 5442
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| 结束页码: | 5449
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| 语种: | 英语
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| 英文关键词: | centennial reanalyses
; diagnostics
; midlatitude variability
; spectral analysis
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| Scopus关键词: | Earth sciences
; Geophysics
; Plasma diagnostics
; Atmospheric model simulations
; Centennial reanalyses
; High frequency variabilities
; Midlatitudes
; Northern Hemispheres
; Surface observation
; Synoptic variability
; Twentieth century
; Spectrum analysis
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| 英文摘要: | The representation of midlatitude winter atmospheric synoptic variability in centennial reanalysis products, which assimilate surface observations only, and atmospheric model simulations constrained by observation-based data sets is assessed. Midlatitude waves activity in twentieth century reanalyses (20CR, ERA-20C) and atmospheric model simulations are compared with those estimated from observationally complete reanalysis products. All reanalyses are in good agreement regarding the representation of the synoptic variability during the last decades of the twentieth century. This suggests that the assimilation of surface observations can generate high-quality extratropical upper air fields. In the first decades of the twentieth century a suppression of high-frequency variability is apparent in the centennial reanalysis products. This behavior does not have a counterpart in the atmospheric model integrations. Since the latter differ from one of the reanalysis products considered here (ERA-20C) only in the assimilation of surface observations, it seems reasonable to attribute the high-frequency variability suppression to the poor coverage of the observations assimilated. ©2016. American Geophysical Union. All Rights Reserved. |
| URL: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84971357101&doi=10.1002%2f2016GL068829&partnerID=40&md5=68ac6267dc41bc6d9d65c6b61d363828
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| Citation statistics: |
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| 资源类型: | 期刊论文
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/10615
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| Appears in Collections: | 科学计划与规划
气候变化与战略
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作者单位: | ENEA, Climate & Impact Modeling Laboratory, Roma, Italy
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| Recommended Citation: | |
Dell'Aquila A.,Corti S.,Weisheimer A.,et al. Benchmarking Northern Hemisphere midlatitude atmospheric synoptic variability in centennial reanalysis and numerical simulations[J]. Geophysical Research Letters,2016-01-01,43(10).
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