Dielectric properties of Jovian satellite ice analogs for subsurface radar exploration: A review
Dielectric properties of Jovian satellite ice analogs for subsurface radar exploration: A review
复制标题
用于地下雷达探测的木星卫星冰类似物的介电特性：综述
DOI：
--
复制
发表时间：
2015
期刊：
影响因子：
--
通讯作者：
G. Vannaroni
中科院分区：
文献类型：
--
作者：
E. Pettinelli;B. Cosciotti;F. Di Paolo;S. Lauro;E. Mattei;R. Orosei;G. Vannaroni
第一个致力于探索木星及其冰冷卫星的欧洲使命（Jupiter ICy moons Explorer-JUICE）将于2022年发射，并将于2030年到达最终目的地。这项使命的主要目标是了解三颗伽利略卫星（木卫二、木卫三和木卫四）冰壳的内部结构，并最终探测木卫二的地下海洋，据信这是假设存在于这些卫星上的海洋中最接近表面的海洋。JUICE将配备9 MHz的地下穿透雷达RIME（用于冰月探测的雷达），该雷达旨在对9公里深的冰进行成像。此外，一个与欧罗巴并行的使命，将搭载配备9 MHz和60 MHz天线的REASON（欧罗巴评估和探测雷达：海洋到近表面），最近已获得NASA的批准。这些实验的成功在很大程度上取决于对雷达性能的准确预测以及对雷达回波的最佳处理和解释，而这又取决于构成冰冷卫星壳的材料的介电特性。在本综述中，我们报告了这些冰冷卫星上可能出现的完整的潜在冰类型，以了解它们如何影响拟议任务的结果。首先，我们讨论了纯和掺杂水冰的实验结果的框架内的Jaccard理论，突出的关键方面缺乏标准的实验室程序和不一致的数据解释。然后，我们描述了地外冰类似物，如水合物和冰的混合物，二氧化碳冰和氨冰的介电行为。在此审查的基础上，我们选择了最合适的数据来计算介电衰减，速度，垂直分辨率和反射系数，这样的冰冷的月球环境，最终目标是估计潜在的能力的雷达任务作为一个功能的频率和温度范围感兴趣的地下探测器。我们提出了不同的地下场景和相关的雷达信号衰减模型，到目前为止，已经提出了模拟木卫二的地壳结构，并讨论了物理和地质性质的各种电介质目标可能与RIME检测。最后，我们简要地强调了几个悬而未决的问题，应该解决，在不久的将来，以提高我们的能力，产生现实的冰月球地壳的电磁模型。本审查对包括地球在内的太阳系所有天体的地球物理勘探都有意义，因为在这些天体的表面或相对较浅的深度可能存在冰。
The first European mission dedicated to the exploration of Jupiter and its icy moons (JUpiter ICy moons Explorer—JUICE) will be launched in 2022 and will reach its final destination in 2030. The main goals of this mission are to understand the internal structure of the icy crusts of three Galilean satellites (Europa, Ganymede, and Callisto) and, ultimately, to detect Europa's subsurface ocean, which is believed to be the closest to the surface among those hypothesized to exist on these moons. JUICE will be equipped with the 9 MHz subsurface‐penetrating radar RIME (Radar for Icy Moon Exploration), which is designed to image the ice down to a depth of 9 km. Moreover, a parallel mission to Europa, which will host onboard REASON (Radar for Europa Assessment and Sounding: Ocean to Near‐surface) equipped with 9MHz and 60MHz antennas, has been recently approved by NASA. The success of these experiments strongly relies on the accurate prediction of the radar performance and on the optimal processing and interpretation of radar echoes that, in turn, depend on the dielectric properties of the materials composing the icy satellite crusts. In the present review we report a complete range of potential ice types that may occur on these icy satellites to understand how they may affect the results of the proposed missions. First, we discuss the experimental results on pure and doped water ice in the framework of the Jaccard theory, highlighting the critical aspects in terms of a lack of standard laboratory procedures and inconsistency in data interpretation. We then describe the dielectric behavior of extraterrestrial ice analogs like hydrates and icy mixtures, carbon dioxide ice and ammonia ice. Building on this review, we have selected the most suitable data to compute dielectric attenuation, velocity, vertical resolution, and reflection coefficients for such icy moon environments, with the final goal being to estimate the potential capabilities of the radar missions as a function of the frequency and temperature ranges of interest for the subsurface sounders. We present the different subsurface scenarios and associated radar signal attenuation models that have been proposed so far to simulate the structure of the crust of Europa and discuss the physical and geological nature of various dielectric targets potentially detectable with RIME. Finally, we briefly highlight several unresolved issues that should be addressed, in near future, to improve our capability to produce realistic electromagnetic models of icy moon crusts. The present review is of interest for the geophysical exploration of all solar system bodies, including the Earth, where ice can be present at the surface or at relatively shallow depths.
影响因子：
44.1
作者：
Bartels-Rausch, Thorsten;Bergeron, Vance;Uras-Aytemiz, Nevin
通讯作者：
Uras-Aytemiz, Nevin
雪、冰和冰川百科全书
DOI：
10.1007/978-90-481-2642-2_289
发表时间：
2011
期刊：
--
影响因子：
--
作者：
Tuffen H
通讯作者：
Tuffen H
影响因子：
3.9
作者：
Jansen, Daniela;Luckman, Adrian;King, Edward C.
通讯作者：
King, Edward C.