کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5487323 1666393 2017 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Bright prospects for radar detection of Europa's ocean
ترجمه فارسی عنوان
چشم انداز روشن برای تشخیص رادار اقیانوس اروپا
کلمات کلیدی
رادار صدایی رگولیت، اقیانوس، پراکندگی دوره، ماه یخی،
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات علوم فضا و نجوم
چکیده انگلیسی
The surface of Europa has been hypothesized to include an ice regolith layer from hundreds of meters to kilometers in thickness. However, contrary to previous claims, it does not present a significant obstacle to searching for Europa's ocean with radar sounding. This note corrects prior volume scattering loss analyses and expands them to includes observational and thermo-mechanical constraints on pore size and regolith depth. This provides a more physically realistic range of potential ice-regolith volume-scattering losses for radar sounding observations of Europa's ice shell in the HF and VHF frequency bands. We conclude that, for the range of physical processes and material properties observed or hypothesized for Europa, volume scattering losses are not likely to pose a major obstacle to radar penetration.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Icarus - Volume 281, 1 January 2017, Pages 334-337
نویسندگان
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