Enhanced Hydrogen Escape on Mars during the 2018 Global Dust Storm: Impact of Horizontal Wind Field
文献类型：期刊论文
| 作者 | Sun, Mingyang4; Gu, Hao4; Cui, Jun3,4; Wu, Xiaoshu3,4; Huang, Xu4; Ni, Yangxin4; Wu, Zhaopeng2; Li, Lei1 |
| 刊名 | ASTROPHYSICAL JOURNAL
 |
| 出版日期 | 2023-08-01 |
| 卷号 | 953期号:1页码:6 |
| ISSN号 | 0004-637X |
| DOI | 10.3847/1538-4357/ace43e |
| 英文摘要 | Mars has undergone a substantial water loss, transforming from the early warm and wet state to the current cold and arid state. Observations and modeling efforts suggest that hydrogen escape is a metric of water loss on Mars. As a consequence of the vertical transport of water vapor by deep convection, hydrogen escape is significantly enhanced during Martian global dust storms. Motivated by the established scenario that the horizontal wind field could substantially enhance thermal escape, here we evaluate, for the first time, how the escape of H and H-2 on Mars during a typical global dust storm is modified by the enhanced horizontal wind field during the period. By combining kinetic model calculations and the Mars Climate Database outputs, we reach the conclusion that a nonnegligible enhancement of the H and H-2 escape flux could be driven by horizontal winds near the exobase, reaching 15% for H and 60% for H-2 at dawn near the equator during the dust storm. Although the enhancement of the global hydrogen escape rate by the horizontal wind is insignificant, it plays a crucial role in the redistribution of H and H-2 escape flux. The results presented here make useful contributions to a thorough understanding of enhanced hydrogen escape during the global dust storms. |
| WOS关键词 | MARTIAN UPPER-ATMOSPHERE ; WATER ; VARIABILITY ; DRIVEN ; CORONA |
| 资助项目 | National Science Foundation of China[42241112] ; National Science Foundation of China[42105120] ; CAS B-type Strategic Priority Program[XDB41000000] ; Guangdong Basic and Applied Basic Research Foundation[2023A1515012088] |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| 出版者 | IOP Publishing Ltd |
| WOS记录号 | WOS:001041862600001 |
| 资助机构 | National Science Foundation of China ; CAS B-type Strategic Priority Program ; Guangdong Basic and Applied Basic Research Foundation ; National Science Foundation of China ; CAS B-type Strategic Priority Program ; Guangdong Basic and Applied Basic Research Foundation ; National Science Foundation of China ; CAS B-type Strategic Priority Program ; Guangdong Basic and Applied Basic Research Foundation ; National Science Foundation of China ; CAS B-type Strategic Priority Program ; Guangdong Basic and Applied Basic Research Foundation |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/110821]  |
| 专题 | 地质与地球物理研究所_中国科学院地球与行星物理重点实验室 |
| 通讯作者 | Gu, Hao |
| 作者单位 | 1.Chinese Acad Sci, Natl Space Sci Ctr, Beijing, Peoples R China 2.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Earth & Planetary Phys, Beijing, Peoples R China 3.Chinese Acad Sci, Ctr Excellence Comparat Planetol, Hefei, Anhui, Peoples R China 4.Sun Yat sen Univ, Sch Atmospher Sci, Planetary Environm & Astrobiol Res Lab PEARL, Zhuhai, Guangdong, Peoples R China |
| 推荐引用方式 GB/T 7714 | Sun, Mingyang,Gu, Hao,Cui, Jun,et al. Enhanced Hydrogen Escape on Mars during the 2018 Global Dust Storm: Impact of Horizontal Wind Field[J]. ASTROPHYSICAL JOURNAL,2023,953(1):6. |
| APA | Sun, Mingyang.,Gu, Hao.,Cui, Jun.,Wu, Xiaoshu.,Huang, Xu.,...&Li, Lei.(2023).Enhanced Hydrogen Escape on Mars during the 2018 Global Dust Storm: Impact of Horizontal Wind Field.ASTROPHYSICAL JOURNAL,953(1),6. |
| MLA | Sun, Mingyang,et al."Enhanced Hydrogen Escape on Mars during the 2018 Global Dust Storm: Impact of Horizontal Wind Field".ASTROPHYSICAL JOURNAL 953.1(2023):6. |
入库方式： OAI收割
来源：地质与地球物理研究所
浏览0
下载0
收藏0
其他版本
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。