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DOI | 10.1175/JCLI-D-17-0202.1 |
On How the Middle Atmospheric Residual Circulation Responds to the Solar Cycle Close to the Solstices | |
Karlsson, Bodil; Kuilman, Maartje | |
2018 | |
发表期刊 | JOURNAL OF CLIMATE |
ISSN | 0894-8755 |
EISSN | 1520-0442 |
出版年 | 2018 |
卷号 | 31期号:1页码:401-421 |
文章类型 | Article |
语种 | 英语 |
国家 | Sweden |
英文摘要 | During high solar activity, the atmosphere receives more energy from the sun, particularly in the form of shortwave radiation. Most notable is the effect in the middle and upper atmosphere, which in general shows a positive temperature response due to physical and chemical processes that are intensified at high solar activity. It is thus surprising that a clear solar cycle signal is absent in the summer polar mesosphere region in spite of it being illuminated around the clock. In this study, it is investigated how the circulation in the summer mesosphere is affected by changes in the solar flux using a 30-yr run from the nudged version of the Canadian Middle Atmosphere Model (CMAM30). It is found that-in July-the solar cycle signal from direct solar heating is counteracted by an enhanced residual circulation, which adiabatically cools the region at a higher rate when the solar activity is above average. The dynamical cooling is partly initiated in the Southern Hemisphere winter stratosphere. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000429528800024 |
WOS关键词 | GRAVITY-WAVE ; WATER-VAPOR ; VARIABILITY ; MODEL ; MESOSPHERE ; OZONE ; PARAMETERIZATION ; STRATOSPHERE ; TEMPERATURES ; CLIMATOLOGY |
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/20722 |
专题 | 气候变化 |
作者单位 | Stockholm Univ, Dept Meteorol, Stockholm, Sweden |
推荐引用方式 GB/T 7714 | Karlsson, Bodil,Kuilman, Maartje. On How the Middle Atmospheric Residual Circulation Responds to the Solar Cycle Close to the Solstices[J]. JOURNAL OF CLIMATE,2018,31(1):401-421. |
APA | Karlsson, Bodil,&Kuilman, Maartje.(2018).On How the Middle Atmospheric Residual Circulation Responds to the Solar Cycle Close to the Solstices.JOURNAL OF CLIMATE,31(1),401-421. |
MLA | Karlsson, Bodil,et al."On How the Middle Atmospheric Residual Circulation Responds to the Solar Cycle Close to the Solstices".JOURNAL OF CLIMATE 31.1(2018):401-421. |
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