Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/2017GL073383 |
Jupiter's North Equatorial Belt expansion and thermal wave activity ahead of Juno's arrival | |
Fletcher, L. N.1; Orton, G. S.2; Sinclair, J. A.2; Donnelly, P.1; Melin, H.1; Rogers, J. H.3; Greathouse, T. K.4; Kasaba, Y.5; Fujiyoshi, T.6; Sato, T. M.7; Fernandes, J.8; Irwin, P. G. J.9; Giles, R. S.9; Simon, A. A.10; Wong, M. H.11; Vedovato, M.12 | |
2017-07-28 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS |
ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2017 |
卷号 | 44期号:14 |
文章类型 | Article |
语种 | 英语 |
国家 | England; USA; Japan; Italy |
英文摘要 | The dark colors of Jupiter's North Equatorial Belt (NEB, 7-17 degrees N) appeared to expand northward into the neighboring zone in 2015, consistent with a 3-5 year cycle. Inversions of thermal-IR imaging from the Very Large Telescope revealed a moderate warming and reduction of aerosol opacity at the cloud tops at 17-20 degrees N, suggesting subsidence and drying in the expanded sector. Two new thermal waves were identified during this period: (i) an upper tropospheric thermal wave (wave number 16-17, amplitude 2.5 K at 170 mbar) in the mid-NEB that was anticorrelated with haze reflectivity; and (ii) a stratospheric wave (wave number 13-14, amplitude 7.3 K at 5 mbar) at 20-30 degrees N. Both were quasi-stationary, confined to regions of eastward zonal flow, and are morphologically similar to waves observed during previous expansion events. Plain Language Summary A campaign of Earth-based support imaging for NASA's Juno mission identified several interesting atmospheric phenomena at work in Jupiter's northern hemisphere. The prominent dark brown belt north of the equator expanded northward, potentially spawning wave activity throughout the troposphere and stratosphere. Unlike previous cyclic events on Jupiter (these expansions occur once every 3-5 years), the 2015/2016 expansion stalled and did not reach completion, but the waves were evident throughout 2016 ahead of Juno's arrival in orbit around Jupiter. Such Earth-based supporting observations help set the environmental context for Juno's close-up observations of the giant planet. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000407790500006 |
WOS关键词 | 5-MICRON HOT-SPOTS ; SPATIAL-ORGANIZATION ; UPPER TROPOSPHERE ; TIME-DEPENDENCE ; ATMOSPHERE ; CASSINI ; TEMPERATURES ; CLOUDS ; EVOLUTION ; DYNAMICS |
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/26271 |
专题 | 气候变化 |
作者单位 | 1.Univ Leicester, Dept Phys & Astron, Leicester, Leics, England; 2.CALTECH, Jet Prop Lab, Pasadena, CA USA; 3.British Astron Assoc, London, England; 4.Southwest Res Inst, San Antonio, TX USA; 5.Tohoku Univ, Dept Geophys, Sendai, Miyagi, Japan; 6.Natl Inst Nat Sci, Natl Astron Observ Japan, Subaru Telescope, 650 N Aohoku Pl, Hilo, HI 96720 USA; 7.Japan Aerosp Explorat Agcy, Inst Space & Astronaut Sci, Sagamihara, Kanagawa, Japan; 8.Calif State Univ Long Beach, Dept Phys & Astron, Long Beach, CA 90840 USA; 9.Univ Oxford, Dept Phys, Atmospher Ocean & Planetary Phys, Oxford, England; 10.NASA, Goddard Space Flight Ctr, Solar Syst Explorat Div 690, Greenbelt, MD USA; 11.Univ Calif Berkeley, Dept Astron, 601 Campbell Hall, Berkeley, CA 94720 USA; 12.Unione Astrofili Italiani, JUPOS Team, Rome, Italy |
推荐引用方式 GB/T 7714 | Fletcher, L. N.,Orton, G. S.,Sinclair, J. A.,et al. Jupiter's North Equatorial Belt expansion and thermal wave activity ahead of Juno's arrival[J]. GEOPHYSICAL RESEARCH LETTERS,2017,44(14). |
APA | Fletcher, L. N..,Orton, G. S..,Sinclair, J. A..,Donnelly, P..,Melin, H..,...&Vedovato, M..(2017).Jupiter's North Equatorial Belt expansion and thermal wave activity ahead of Juno's arrival.GEOPHYSICAL RESEARCH LETTERS,44(14). |
MLA | Fletcher, L. N.,et al."Jupiter's North Equatorial Belt expansion and thermal wave activity ahead of Juno's arrival".GEOPHYSICAL RESEARCH LETTERS 44.14(2017). |
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