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DOI | 10.1029/2020GL087221 |
A Long-Lived Sharp Disruption on the Lower Clouds of Venus | |
Peralta, J.1; Navarro, T.2,3,4; Vun, C. W.1; Sanchez-Lavega, A.5; McGouldrick, K.6; Horinouchi, T.7; Imamura, T.8; Hueso, R.5; Boyd, J. P.9; Schubert, G.2; Kouyama, T.10; Satoh, T.1; Iwagami, N.; Young, E. F.11; Bullock, M. A.11; Machado, P.12; Lee, Y. J.13; Limaye, S. S.14; Nakamura, M.1; Tellmann, S.15; Wesley, A.16; Miles, P.17 | |
2020-06-16 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS |
ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2020 |
卷号 | 47期号:11 |
文章类型 | Article |
语种 | 英语 |
国家 | Japan; USA; Canada; Spain; Portugal; Germany; Australia |
英文摘要 | Planetary-scale waves are thought to play a role in powering the yet unexplained atmospheric superrotation of Venus. Puzzlingly, while Kelvin, Rossby, and stationary waves manifest at the upper clouds (65-70 km), no planetary-scale waves or stationary patterns have been reported in the intervening level of the lower clouds (48-55 km), although the latter are probably Lee waves. Using observations by the Akatsuki orbiter and ground-based telescopes, we show that the lower clouds follow a regular cycle punctuated between 30 degrees N and 40 degrees S by a sharp discontinuity or disruption with potential implications to Venus's general circulation and thermal structure. This disruption exhibits a westward rotation period of similar to 4.9 days faster than winds at this level (similar to 6-day period), alters clouds' properties and aerosols, and remains coherent during weeks. Past observations reveal its recurrent nature since at least 1983, and numerical simulations show that a nonlinear Kelvin wave reproduces many of its properties. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000543387400058 |
WOS关键词 | ATMOSPHERE ; DYNAMICS ; MIDDLE ; CIRCULATION ; MORPHOLOGY ; WAVES ; LAYER |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
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/289439 |
专题 | 气候变化 |
作者单位 | 1.JAXA, Inst Space & Astronaut Sci, Sagamihara, Kanagawa, Japan; 2.Univ Calif Los Angeles, Dept Earth Planetary & Space Sci, Los Angeles, CA USA; 3.McGill Univ, McGill Space Inst, Montreal, PQ, Canada; 4.McGill Univ, Dept Earth & Planetary Sci, Montreal, PQ, Canada; 5.Univ Basque Country, Escuela Ingn Bilbao, Bilbao, Spain; 6.Univ Colorado, Lab Atmospher & Space Phys, Boulder, CO 80309 USA; 7.Hokkaido Univ, Fac Environm Earth Sci, Sapporo, Hokkaido, Japan; 8.Univ Tokyo, Grad Sch Frontier Sci, Tokyo, Japan; 9.Univ Michigan, CLaSP Dept, Coll Engn, Ann Arbor, MI 48109 USA; 10.Natl Inst Adv Ind Sci & Technol, Artificial Intelligence Res Ctr, Tokyo, Japan; 11.Southwest Res Inst, Boulder, CO USA; 12.Inst Astrophys & Space Sci, Lisbon, Portugal; 13.Univ Cologne, Abt Planetenforch, Rhein Inst Umweltforsch, Cologne, Germany; 14.Univ Wisconsin, Space Sci & Eign Ctr, Madison, WI USA; 15.Univ Cologne, Abt Planetenforsch, Rhein Inst Umweltforsch, Cologne, Germany; 16.Astron Soc Australia, Murrumbateman, NSW, Australia; 17.Gemeye Observ, Rubyvale, Qld, Australia |
推荐引用方式 GB/T 7714 | Peralta, J.,Navarro, T.,Vun, C. W.,et al. A Long-Lived Sharp Disruption on the Lower Clouds of Venus[J]. GEOPHYSICAL RESEARCH LETTERS,2020,47(11). |
APA | Peralta, J..,Navarro, T..,Vun, C. W..,Sanchez-Lavega, A..,McGouldrick, K..,...&Miles, P..(2020).A Long-Lived Sharp Disruption on the Lower Clouds of Venus.GEOPHYSICAL RESEARCH LETTERS,47(11). |
MLA | Peralta, J.,et al."A Long-Lived Sharp Disruption on the Lower Clouds of Venus".GEOPHYSICAL RESEARCH LETTERS 47.11(2020). |
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