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I. Temperatures of polar ice deposits on Mercury and the Moon. II. Jovian atmospheric dynamics from Galileo imaging.

机译:I.水星和月球上极地冰层的温度。二。来自伽利略成像的木星大气动力学。

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摘要

Locations on Mercury that produce ice-like radar responses lie within impact craters that have very cold, permanently shaded floors. The retention of possible ice deposits is determined largely by their temperature. We present model-calculated temperatures of flat surfaces and surfaces within bowl-shaped and flat-floored polar impact craters. Our model includes appropriate insolation cycles, realistic crater shapes, multiple scattering of sunlight and infrared radiation, and depth and temperature-dependent regolith thermophysical properties. Meter-thick deposits of water ice are stable to evaporation over the age of the solar system if located in the permanently shaded portions of flat-floored craters within ;During the first six orbits of the Galileo spacecraft's prime mission, the Solid State Imaging system acquired multispectral image mosaics of Jupiter's Great Red Spot, an equatorial belt/zone boundary, a "5-
机译:水星上产生类似于冰的雷达响应的位置位于撞击坑内,撞击坑的地板非常冷且永久阴影。可能的冰沉积物的保留在很大程度上取决于其温度。我们介绍了模型计算得出的平坦表面以及碗形和平坦地板的极性撞击坑内表面的温度。我们的模型包括适当的日照周期,真实的陨石坑形状,日光和红外辐射的多次散射以及与深度和温度有关的重石热物理性质。如果将米厚的水冰沉积物放置在内部平底坑的永久阴影部分中,则在太阳系的整个年龄段内,其蒸发稳定;在伽利略号航天器主要任务的前六个轨道中,获得了固态成像系统木星大红色斑点,赤道带/区域边界,“ 5-

著录项

  • 作者

    Vasavada, Ashwin R.;

  • 作者单位

    California Institute of Technology.;

  • 授予单位 California Institute of Technology.;
  • 学科 Geology.;Physics Atmospheric Science.;Physics Astronomy and Astrophysics.
  • 学位 Ph.D.
  • 年度 1998
  • 页码 103 p.
  • 总页数 103
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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