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DOI | 10.1002/2017GL073159 |
The distribution of ammonia on Jupiter from a preliminary inversion of Juno microwave radiometer data | |
Li, Cheng1; Ingersoll, Andrew2; Janssen, Michael1; Levin, Steven1; Bolton, Scott3; Adumitroaie, Virgil1; Allison, Michael4; Arballo, John1; Bellotti, Amadeo5; Brown, Shannon1; Ewald, Shawn2; Jewell, Laura1; Misra, Sidharth1; Orton, Glenn1; Oyafuso, Fabiano1; Steffes, Paul5; Williamson, Ross1 | |
2017-06-16 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS
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ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2017 |
卷号 | 44期号:11 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | The Juno microwave radiometer measured the thermal emission from Jupiter's atmosphere from the cloud tops at about 1bar to as deep as a hundred bars of pressure during its first flyby over Jupiter (PJ1). The nadir brightness temperatures show that the Equatorial Zone is likely to be an ideal adiabat, which allows a determination of the deep ammonia abundance in the range 362-33+33ppm. The combination of Markov chain Monte Carlo method and Tikhonov regularization is studied to invert Jupiter's global ammonia distribution assuming a prescribed temperature profile. The result shows (1) that ammonia is depleted globally down to 50-60bars except within a few degrees of the equator, (2) the North Equatorial Belt is more depleted in ammonia than elsewhere, and (3) the ammonia concentration shows a slight inversion starting from about 7bars to 2bars. These results are robust regardless of the choice of water abundance. Plain Language Summary The distribution of ammonia gas on Jupiter's atmosphere was derived by fitting the microwave spectra measured by the Juno spacecraft. The result showed that the concentration of ammonia gas in the extratropics was much less than expected and had a local minimum near 7bars of pressure. |
英文关键词 | Jupiter Juno atmosphere ammonia retrieval |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000404382600009 |
WOS关键词 | TEMPERATURES ; OPACITY |
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/28449 |
专题 | 气候变化 |
作者单位 | 1.CALTECH, Jet Prop Lab, Pasadena, CA 91125 USA; 2.CALTECH, Pasadena, CA 91125 USA; 3.Southwest Res Inst, San Antonio, TX USA; 4.Goddard Inst Space Studies, New York, NY USA; 5.Georgia Inst Technol, Atlanta, GA 30332 USA |
推荐引用方式 GB/T 7714 | Li, Cheng,Ingersoll, Andrew,Janssen, Michael,et al. The distribution of ammonia on Jupiter from a preliminary inversion of Juno microwave radiometer data[J]. GEOPHYSICAL RESEARCH LETTERS,2017,44(11). |
APA | Li, Cheng.,Ingersoll, Andrew.,Janssen, Michael.,Levin, Steven.,Bolton, Scott.,...&Williamson, Ross.(2017).The distribution of ammonia on Jupiter from a preliminary inversion of Juno microwave radiometer data.GEOPHYSICAL RESEARCH LETTERS,44(11). |
MLA | Li, Cheng,et al."The distribution of ammonia on Jupiter from a preliminary inversion of Juno microwave radiometer data".GEOPHYSICAL RESEARCH LETTERS 44.11(2017). |
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