Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/2017JD027782 |
Simulations of the Boreal Winter Upper Mesosphere and Lower Thermosphere With Meteorological Specifications in SD-WACCM-X | |
Sassi, Fabrizio1; Siskind, David E.1; Tate, Jennifer L.2; Liu, Han-Li3; Randall, Cora E.4 | |
2018-04-16 | |
发表期刊 | JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES |
ISSN | 2169-897X |
EISSN | 2169-8996 |
出版年 | 2018 |
卷号 | 123期号:7页码:3791-3811 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | We investigate the benefit of high-altitude nudging in simulations of the structure and short-term variability of the upper mesosphere and lower thermosphere (UMLT) dynamical meteorology during boreal winter, specifically around the time of the January 2009 sudden stratospheric warming. We compare simulations using the Specified Dynamics, Whole Atmosphere Community Climate Model, extended version, nudged using atmospheric specifications generated by the Navy Operational Global Atmospheric Prediction System, Advanced Level Physics High Altitude. Two sets of simulations are carried out: one uses nudging over a vertical domain from 0 to 90km; the other uses nudging over a vertical domain from 0 to 50km. The dynamical behavior is diagnosed from ensemble mean and standard deviation of winds, temperature, and zonal accelerations due to resolved and parameterized waves. We show that the dynamical behavior of the UMLT is quite different in the two experiments, with prominent differences in the structure and variability of constituent transport. We compare the results of our numerical experiments to observations of carbon monoxide by the Atmospheric Chemistry Experiment-Fourier Transform Spectrometer to show that the high-altitude nudging is capable of reproducing with high fidelity the observed variability, and traveling planetary waves are a crucial component of the dynamics. The results of this study indicate that to capture the key physical processes that affect short-term variability (defined as the atmospheric behavior within about 10days of a stratospheric warming) in the UMLT, specification of the atmospheric state in the stratosphere alone is not sufficient, and upper atmospheric specifications are needed. |
英文关键词 | dynamical variability upper mesosphere lower thermosphere short-term variability |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000430786500025 |
WOS关键词 | SOLAR MINIMUM CONDITIONS ; MIDDLE ATMOSPHERE ; DATA ASSIMILATION ; CLIMATE MODEL ; DESCENT ; WAVES ; STRATOSPHERE ; INVERSIONS ; MESOPAUSE ; HAMMONIA |
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/33774 |
专题 | 气候变化 |
作者单位 | 1.Naval Res Lab, Washington, DC 20375 USA; 2.Computat Phys Inc, Springfield, VA USA; 3.Natl Ctr Atmospher Res, POB 3000, Boulder, CO 80307 USA; 4.Univ Colorado Boulder, Lab Atmospher & Space Phys, Boulder, CO USA |
推荐引用方式 GB/T 7714 | Sassi, Fabrizio,Siskind, David E.,Tate, Jennifer L.,et al. Simulations of the Boreal Winter Upper Mesosphere and Lower Thermosphere With Meteorological Specifications in SD-WACCM-X[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2018,123(7):3791-3811. |
APA | Sassi, Fabrizio,Siskind, David E.,Tate, Jennifer L.,Liu, Han-Li,&Randall, Cora E..(2018).Simulations of the Boreal Winter Upper Mesosphere and Lower Thermosphere With Meteorological Specifications in SD-WACCM-X.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,123(7),3791-3811. |
MLA | Sassi, Fabrizio,et al."Simulations of the Boreal Winter Upper Mesosphere and Lower Thermosphere With Meteorological Specifications in SD-WACCM-X".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 123.7(2018):3791-3811. |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论