کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1782468 | 1022338 | 2008 | 25 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
The properties of Titan's surface at the Huygens landing site from DISR observations
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موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
فیزیک زمین (ژئو فیزیک)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: The properties of Titan's surface at the Huygens landing site from DISR observations The properties of Titan's surface at the Huygens landing site from DISR observations](/preview/png/1782468.png)
چکیده انگلیسی
The reflectance spectra of the land and lake bed area in the IR are derived, as well as the reflectance phase function in the limited range from 20â to 50â phase angle. An absorption feature at 1.55 μm which may be attributed tentatively to water ice is found in the lake bed, but not in the land area. Otherwise the surface exhibits a featureless blue slope in the near-IR region (0.9-1.6μm). Brightness profiles perpendicular to the coast line show that the bottoms of the channels of the large scale flow pattern become darker the further they are away from the land area. This could be interpreted as sedimentation of the bright land material transported by the rivers into the lake bed area. The river beds in the deeply incised valleys need not to be covered by dark material. Their roughly 10% brightness decrease could be caused by the illumination as illustrated by a model calculation. The size distribution of cobbles seen in the images after landing is in agreement with a single major flooding of the area with a flow speed of about 1ms-1.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Planetary and Space Science - Volume 56, Issue 5, April 2008, Pages 728-752
Journal: Planetary and Space Science - Volume 56, Issue 5, April 2008, Pages 728-752
نویسندگان
H.U. Keller, B. Grieger, M. Küppers, S.E. Schröder, Y.V. Skorov, M.G. Tomasko,