Radar topography of domes on planetary surfaces

被引：10

作者：

Neish, Catherine D. ^{[1
]}

Lorenz, Ralph D. ^{[2
]}

Kirk, Randolph L. ^{[3
]}

机构：

[1] Univ Arizona, Lunar & Planetary Lab, Tucson, AZ 85721 USA

[2] Johns Hopkins Univ, Appl Phys Lab, Dept Space, Laurel, MD 20723 USA

[3] US Geol Survey, Flagstaff, AZ 86001 USA

来源：

ICARUS | 2008年 / 196卷 / 02期

关键词：

Venus; surface; Earth; Titan; volcanism; radar observations;

D O I：

10.1016/j.icarus.2008.03.013

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We investigate the possibility of measuring the heights and morphology of viscously emplaced domes using radar imagery. We accurately reproduce the known height and shape of a terrestrial salt dome, and estimate the heights of several venusian pancake domes to within a factor of two. The terrestrial salt dome is consistent with a Bingham flow, while the much larger venusian pancake domes are consistent with a Newtonian flow. Applying the same techniques to Ganesa Macula, a potential cryovolcanic dome on Titan, we estimate a height between 2.0-4.9 km. Additional factors such as variable roughness and composition might account for some of the discrepancies observed. (C) 2008 Elsevier Inc. All rights reserved.

引用

页码：552 / 564

页数：13

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