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DOI | 10.1038/NGEO2873 |
Large stationary gravity wave in the atmosphere of Venus | |
Fukuhara, Tetsuya1; Futaguchi, Masahiko2; Hashimoto, George L.3; Horinouchi, Takeshi4; Imamura, Takeshi5; Iwagaimi, Naomoto6; Kouyama, Toru7; Murakami, Shin-ya8; Nakamura, Masato8; Ogohara, Kazunori9; Sato, Mitsuteru4; Sato, Takao M.8; Suzuki, Makoto8; Taguchi, Makoto1; Takagi, Seiko10; Ueno, Munetaka11; Watanabe, Shigeto12; Yamada, Manabu13; Yamazaki, Atsushi8 | |
2017-02-01 | |
发表期刊 | NATURE GEOSCIENCE |
ISSN | 1752-0894 |
EISSN | 1752-0908 |
出版年 | 2017 |
卷号 | 10期号:2 |
文章类型 | Article |
语种 | 英语 |
国家 | Japan |
英文摘要 | The planet Venus is covered by thick clouds of sulfuric acid that move westwards because the entire upper atmosphere rotates much faster than the planet itself. At the cloud tops, about 65 km in altitude, small-scale features are predominantly carried by the background wind at speeds of approximately 100 ms(-1). In contrast, planetary-scale atmospheric features have been observed to move slightly faster or slower than the background wind, a phenomenon that has been interpreted to reflect the propagation of planetary-scale waves. Here we report the detection of an interhemispheric bow-shaped structure stretching 10,000 km across at the cloud-top level of Venus in middle infrared and ultraviolet images from the Japanese orbiter Akatsuki. Over several days of observation, the bow-shaped structure remained relatively fixed in position above the highland on the slowly rotating surface, despite the background atmospheric super rotation. We suggest that the bow-shaped structure is the result of an atmospheric gravity wave generated in the lower atmosphere by mountain topography that then propagated upwards. Numerical simulations provide preliminary support for this interpretation, but the formation and propagation of a mountain gravity wave remain difficult to reconcile with assumed near-surface conditions on Venus. We suggest that winds in the deep atmosphere may be spatially or temporally more variable than previously thought. |
领域 | 地球科学 ; 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000394121800009 |
WOS关键词 | INFRARED CAMERA ONBOARD ; PLANETARY-SCALE WAVES ; CLOUD-TOP ; ORBITER ; PROPAGATION |
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/34803 |
专题 | 地球科学 气候变化 |
作者单位 | 1.Rikkyo Univ, Coll Sci, Toshima Ku, 3-34-1 Nishi Ikebukuro, Tokyo 1718501, Japan; 2.Toho Univ, Omori Med Ctr, Ota Ku, 6-11-1 Omorinishi, Tokyo 1438541, Japan; 3.Okayama Univ, Dept Earth Sci, Kita Ku, 3-1-1 Tsushimanaka, Okayama 7008530, Japan; 4.Hokkaido Univ, Fac Environm Earth Sci, N10W5, Sapporo, Hokkaido N10W5, Japan; 5.Univ Tokyo, Grad Sch Frontier Sci, 5-1-5 Kashiwanoha, Kashiwa, Chiba 2778561, Japan; 6.Senshu Univ, Sch Commerce, Tama Ku, 2-1-1 Higashimita, Kawasaki, Kanagawa 2148580, Japan; 7.Natl Inst Adv Ind Sci & Technol, Artificial Intelligence Res Ctr, Koto Ku, 2-3-26 Aomi, Tokyo 1350064, Japan; 8.Japan Aerosp Explorat Agcy, Inst Space & Astronaut Sci, Chuo Ku, 3-1-1 Yoshinodai, Sagamihara, Kanagawa 2525210, Japan; 9.Univ Shiga Prefecture, Sch Engn, 2500 Hassaka, Hikone, Shiga 5228533, Japan; 10.Tokai Univ, Res & Informat Ctr, 4-1-1 Kitakaname, Hiratsuka, Kanagawa 2591292, Japan; 11.Kobe Univ, Grad Sch Sci, Chuo Ku, 7-1-48 Minatojima Minamimachi, Kobe, Hyogo 6500047, Japan; 12.Hokkaido Informat Univ, Space Informat Ctr, Ebetsu, Hokkaido 0698585, Japan; 13.Chiba Inst Technol, Planetary Explorat Res Ctr, 2-17-1 Tsudanuma, Narashino, Chiba 2750016, Japan |
推荐引用方式 GB/T 7714 | Fukuhara, Tetsuya,Futaguchi, Masahiko,Hashimoto, George L.,et al. Large stationary gravity wave in the atmosphere of Venus[J]. NATURE GEOSCIENCE,2017,10(2). |
APA | Fukuhara, Tetsuya.,Futaguchi, Masahiko.,Hashimoto, George L..,Horinouchi, Takeshi.,Imamura, Takeshi.,...&Yamazaki, Atsushi.(2017).Large stationary gravity wave in the atmosphere of Venus.NATURE GEOSCIENCE,10(2). |
MLA | Fukuhara, Tetsuya,et al."Large stationary gravity wave in the atmosphere of Venus".NATURE GEOSCIENCE 10.2(2017). |
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