Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1175/JAS-D-17-0136.1 |
Sensitivity of Sudden Stratospheric Warmings to Previous Stratospheric Conditions | |
de la Camara, Alvaro1; Albers, John R.2,3; Birner, Thomas4; Garcia, Rolando R.1; Hitchcock, Peter1; Kinnison, Douglas E.1; Smith, Anne K.1 | |
2017-09-01 | |
发表期刊 | JOURNAL OF THE ATMOSPHERIC SCIENCES |
ISSN | 0022-4928 |
EISSN | 1520-0469 |
出版年 | 2017 |
卷号 | 74期号:9 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | The Whole Atmosphere Community Climate Model, version 4 (WACCM4), is used to investigate the influence of stratospheric conditions on the development of sudden stratospheric warmings (SSWs). To this end, targeted experiments are performed on selected modeled SSW events. Specifically, the model is reinitialized three weeks before a given SSW, relaxing the surface fluxes, winds, and temperature below 10 km to the corresponding fields from the free-running simulation. Hence, the tropospheric wave evolution is unaltered across the targeted experiments, but the stratosphere itself can evolve freely. The stratospheric zonal-mean state is then altered 21 days prior to the selected SSWs and rerun with an ensemble of different initial conditions. It is found that a given tropospheric evolution concomitant with the development of an SSW does not uniquely determine the occurrence of an event and that the stratospheric conditions are relevant to the subsequent evolution of the stratospheric flow toward an SSW, even for a fixed tropospheric evolution. It is also shown that interpreting the meridional heat flux at 100 hPa as a proxy of the tropospheric injection of wave activity into the stratosphere should be regarded with caution and that stratospheric dynamics critically influence the heat flux at that altitude. |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000409847100008 |
WOS关键词 | WAVE ACTIVITY FLUX ; NORTHERN-HEMISPHERE ; NUMERICAL-MODEL ; PLANETARY-WAVES ; WEATHER REGIMES ; POLAR VORTEX ; ROSSBY WAVES ; JANUARY 2009 ; PART I ; EVENTS |
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/29297 |
专题 | 地球科学 |
作者单位 | 1.Natl Ctr Atmospher Res, POB 3000, Boulder, CO 80307 USA; 2.Univ Colorado, Cooperat Inst Res Environm Sci, Boulder, CO 80309 USA; 3.NOAA, Phys Sci Div, Earth Syst Res Lab, Boulder, CO USA; 4.Colorado State Univ, Dept Atmospher Sci, Ft Collins, CO 80523 USA |
推荐引用方式 GB/T 7714 | de la Camara, Alvaro,Albers, John R.,Birner, Thomas,et al. Sensitivity of Sudden Stratospheric Warmings to Previous Stratospheric Conditions[J]. JOURNAL OF THE ATMOSPHERIC SCIENCES,2017,74(9). |
APA | de la Camara, Alvaro.,Albers, John R..,Birner, Thomas.,Garcia, Rolando R..,Hitchcock, Peter.,...&Smith, Anne K..(2017).Sensitivity of Sudden Stratospheric Warmings to Previous Stratospheric Conditions.JOURNAL OF THE ATMOSPHERIC SCIENCES,74(9). |
MLA | de la Camara, Alvaro,et al."Sensitivity of Sudden Stratospheric Warmings to Previous Stratospheric Conditions".JOURNAL OF THE ATMOSPHERIC SCIENCES 74.9(2017). |
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