Moist convection drives an upscale energy transfer at Jovian high latitudes
Moist convection drives an upscale energy transfer at Jovian high latitudes
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潮湿对流驱动木星高纬度地区的高级能量转移
DOI：
10.1038/s41567-021-01458-y
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发表时间：
2022
期刊：
影响因子：
19.6
通讯作者：
Plainaki, Christina
中科院分区：
文献类型：
--
作者：
Siegelman, Lia;Klein, Patrice;Ingersoll, Andrew P.;Ewald, Shawn P.;Young, William R.;Bracco, Annalisa;Mura, Alessandro;Adriani, Alberto;Grassi, Davide;Plainaki, Christina
木星的大气层是太阳系中最动荡的地方之一。虽然对闪电和雷暴的观测表明，湿对流是木星大尺度涡旋和纬向喷流的小尺度能量来源，但由于朱诺号之前的测量分辨率较低，这一点从未得到证实。朱诺号宇宙飞船发现，木星高纬度地区有一组直径约5，000公里的大型气旋，每个气旋都与中等规模（约500至1，600公里）和较小规模的漩涡和100公里左右的细丝有关。在这里，我们分析了朱诺号的红外图像，分辨率高达10公里。我们揭示了一个动力学制度与一个显着的能量源的对流起源，峰值在100公里尺度，并在随后的能量转移到大型环极和极地气旋。虽然这种能量路径从未在其他行星上观察到，但它与快速旋转的瑞利-贝纳德对流的理想化研究惊人地一致，为我们的分析提供了理论支持。这条能量路线预计将增强从木星炎热的内部到对流层的热传递，也可能与地球的大气层有关，帮助我们更好地了解我们自己星球的动态。
Jupiter’s atmosphere is one of the most turbulent places in the solar system. Whereas observations of lightning and thunderstorms point to moist convection as a small-scale energy source for Jupiter’s large-scale vortices and zonal jets, this has never been demonstrated due to the coarse resolution of pre-Juno measurements. The Juno spacecraft discovered that Jovian high latitudes host a cluster of large cyclones with diameter of around 5,000 km, each associated with intermediate- (roughly between 500 and 1,600 km) and smaller-scale vortices and filaments of around 100 km. Here, we analyse infrared images from Juno with a high resolution of 10 km. We unveil a dynamical regime associated with a significant energy source of convective origin that peaks at 100 km scales and in which energy gets subsequently transferred upscale to the large circumpolar and polar cyclones. Although this energy route has never been observed on another planet, it is surprisingly consistent with idealized studies of rapidly rotating Rayleigh–Bénard convection, lending theoretical support to our analyses. This energy route is expected to enhance the heat transfer from Jupiter’s hot interior to its troposphere and may also be relevant to the Earth’s atmosphere, helping us better understand the dynamics of our own planet.
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JIRAM-Juno 数据中木星红外亮区域的分析：方法和算法验证
DOI：
10.1016/j.jqsrt.2017.08.008
发表时间：
2017
影响因子：
2.3
作者：
D. Grassi;N. Ignatiev;G. Sindoni;E. D’aversa;T. Maestri;A. Adriani;A. Mura;G. Filacchione;B. Dinelli;R. Noschese;A. Cicchetti;G. Piccioni;D. Turrini;F. Tosi;M. Moriconi;A. Olivieri;C. Plainaki;M. Amoroso;S. Atreya;G. Orton;S. Bolton
通讯作者：
S. Bolton
影响因子：
3.1
作者：
B. H. Burgess;A. Erler;T. Shepherd
通讯作者：
B. H. Burgess;A. Erler;T. Shepherd
来自 Juno/JIRAM 的木星南极气旋周围区域的湍流功率谱
DOI：
10.1029/2019je006096
发表时间：
2020
期刊：
Journal of Geophysical Research: Planets
影响因子：
--
作者：
M. Moriconi;A. Migliorini;F. Altieri;A. Adriani;Alessandro Mura;Glenn S Orton;J. Lunine;Davide Grassi;Sushil K. Atreya;A. Ingersoll;B. Dinelli;S. Bolton;S. Levin;F. Tosi;R. Noschese;C. Plainaki;A. Cicchetti;G. Sindoni;A. Olivieri
通讯作者：
A. Olivieri
影响因子：
64.8
作者：
Brown, Shannon;Janssen, Michael;Connerney, John
通讯作者：
Connerney, John
平面旋转对流中的大型涡旋发电机
影响因子：
3.7
作者：
Guervilly C
通讯作者：
Guervilly C