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DOI | 10.1175/JCLI-D-16-0086.1 |
An Investigation of the Stability Dependence of SST-Induced Vertical Mixing over the Ocean in the Operational Met Office Model | |
Song, Qingtao1,2; Chelton, Dudley B.3; Esbensen, Steven K.3; Brown, Andrew R.4 | |
2017 | |
发表期刊 | JOURNAL OF CLIMATE
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ISSN | 0894-8755 |
EISSN | 1520-0442 |
出版年 | 2017 |
卷号 | 30期号:1 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China; USA; England |
英文摘要 | This study presents an assessment of the impact of a March 2006 change in the Met Office operational global numerical weather prediction model through the introduction of a nonlocal momentum mixing scheme. From comparisons with satellite observations of surface wind speed and sea surface temperature (SST), it is concluded that the new parameterization had a relatively minor impact on SST-induced changes in sea surface wind speed in the Met Office model in the September and October 2007 monthly averages over the Agulhas Return Current region considered here. The performance of the new parameterization of vertical mixing was evaluated near the surface layer and further through comparisons with results obtained using a wide range of sensitivity of mixing parameterization to stability in the Weather Research and Forecasting (WRF) Model, which is easily adapted to such sensitivity studies. While the new parameterization of vertical mixing improves the Met Office model response to SST in highly unstable (convective) conditions, it is concluded that significantly enhanced vertical mixing in the neutral to moderately unstable conditions (nondimensional stability zi/L between 0 and 22) typically found over the ocean is required in order for the model surface wind response to SST to match the satellite observations. Likewise, the reduced mixing in stable conditions in the new parameterization is also relatively small; for the range of the gradient Richardson number typically found over the ocean, the mixing was reduced by a maximum of only 10%, which is too small by more than an order of magnitude to be consistent with the satellite observations. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000391855700007 |
WOS关键词 | SEA-SURFACE TEMPERATURE ; NUMERICAL WEATHER PREDICTION ; BOUNDARY-LAYER STRUCTURE ; WIND STRESS ; SATELLITE-OBSERVATIONS ; MOMENTUM ; SCHEME |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/19654 |
专题 | 气候变化 |
作者单位 | 1.SOA, Natl Satellite Ocean Applicat Serv, Beijing, Peoples R China; 2.SOA, Key Lab Space Ocean Remote Sensing & Applicat, Beijing, Peoples R China; 3.Oregon State Univ, Coll Earth Ocean & Atmospher Sci, Corvallis, OR 97331 USA; 4.Met Off, Exeter, Devon, England |
推荐引用方式 GB/T 7714 | Song, Qingtao,Chelton, Dudley B.,Esbensen, Steven K.,et al. An Investigation of the Stability Dependence of SST-Induced Vertical Mixing over the Ocean in the Operational Met Office Model[J]. JOURNAL OF CLIMATE,2017,30(1). |
APA | Song, Qingtao,Chelton, Dudley B.,Esbensen, Steven K.,&Brown, Andrew R..(2017).An Investigation of the Stability Dependence of SST-Induced Vertical Mixing over the Ocean in the Operational Met Office Model.JOURNAL OF CLIMATE,30(1). |
MLA | Song, Qingtao,et al."An Investigation of the Stability Dependence of SST-Induced Vertical Mixing over the Ocean in the Operational Met Office Model".JOURNAL OF CLIMATE 30.1(2017). |
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