کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1782815 1022362 2008 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
The texture of condensed CO2 on the martian polar caps
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات فیزیک زمین (ژئو فیزیک)
پیش نمایش صفحه اول مقاله
The texture of condensed CO2 on the martian polar caps
چکیده انگلیسی

The widespread deposition of CO2 ice on the martian polar caps in winter is readily visible from Earth and has been extensively studied from orbit. As the surface cools during polar night, CO2 condenses directly out of the atmosphere at a rate that establishes equilibrium between radiative loss and latent heat of condensation. Since radiative loss is strongly geometry-dependent, the CO2 frost will grow most rapidly on exposed surfaces and more slowly in depressions. Positive feedback will cause a dramatic enhancement of the relief of the underlying topography and a corresponding reduction in the average bulk density. The resulting surface will be highly textured and riddled with perforations.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Planetary and Space Science - Volume 56, Issue 2, February 2008, Pages 246–250
نویسندگان
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