Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.5194/acp-19-3769-2019 |
Photochemistry on the bottom side of the mesospheric Na layer | |
Yuan, Tao1,2; Feng, Wuhu3,4; Plane, John M. C.3; Marsh, Daniel R.3,5 | |
2019-03-25 | |
发表期刊 | ATMOSPHERIC CHEMISTRY AND PHYSICS
![]() |
ISSN | 1680-7316 |
EISSN | 1680-7324 |
出版年 | 2019 |
卷号 | 19期号:6页码:3769-3777 |
文章类型 | Article |
语种 | 英语 |
国家 | USA; England |
英文摘要 | Lidar observations of the mesospheric Na layer have revealed considerable diurnal variations, particularly on the bottom side of the layer, where more than an order-of-magnitude increase in Na density has been observed below 80 km after sunrise. In this paper, multi-year Na lidar observations are utilized over a full diurnal cycle at Utah State University (USU) (41.8 degrees N, 111.8 degrees W) and a global atmospheric model of Na with 0.5 km vertical resolution in the mesosphere and lower thermosphere (WACCM-Na) to explore the dramatic changes of Na density on the bottom side of the layer. Photolysis of the principal reservoir NaHCO3 is shown to be primarily responsible for the increase in Na after sunrise, amplified by the increased rate of reaction of NaHCO3 with atomic H, which is mainly produced from the photolysis of H2O and the reaction of OH with O-3. This finding is further supported by Na lidar observation at USU during the solar eclipse (> 96% totality) event on 21 August 2017, when a decrease and recovery of the Na density on the bottom side of the layer were observed. Lastly, the model simulation shows that the Fe density below around 80 km increases more strongly and earlier than observed Na changes during sunrise because of the considerably faster photolysis rate of its major reservoir of FeOH. |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000462349600001 |
WOS关键词 | ATMOSPHERIC CHEMISTRY ; SODIUM LAYER ; MODEL ; TEMPERATURE ; LIDAR ; WIND ; 40-DEGREES-N ; CLIMATOLOGY ; SIMULATION ; PHOTOLYSIS |
WOS类目 | Environmental Sciences ; Meteorology & Atmospheric Sciences |
WOS研究方向 | Environmental Sciences & Ecology ; 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/181691 |
专题 | 地球科学 |
作者单位 | 1.Utah State Univ, Dept Phys, Logan, UT 84322 USA; 2.Utah State Univ, Ctr Atmospher & Space Sci, Logan, UT 84322 USA; 3.Univ Leeds, Sch Chem, Leeds, W Yorkshire, England; 4.Univ Leeds, Natl Ctr Atmospher Sci, Leeds, W Yorkshire, England; 5.Natl Ctr Atmospher Res, POB 3000, Boulder, CO 80307 USA |
推荐引用方式 GB/T 7714 | Yuan, Tao,Feng, Wuhu,Plane, John M. C.,et al. Photochemistry on the bottom side of the mesospheric Na layer[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2019,19(6):3769-3777. |
APA | Yuan, Tao,Feng, Wuhu,Plane, John M. C.,&Marsh, Daniel R..(2019).Photochemistry on the bottom side of the mesospheric Na layer.ATMOSPHERIC CHEMISTRY AND PHYSICS,19(6),3769-3777. |
MLA | Yuan, Tao,et al."Photochemistry on the bottom side of the mesospheric Na layer".ATMOSPHERIC CHEMISTRY AND PHYSICS 19.6(2019):3769-3777. |
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