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    題名: Megaflood analysis through channel networks of the Athabasca Valles, Mars based on multi-resolution stereo DTMs and 2D hydrodynamic modeling
    作者: Kim, J.-R.;Schumann, G.;Neal, J.C.;Lin, Shih Yuan
    林士淵
    貢獻者: 地政系
    關鍵詞: Flow of water;2D hydrodynamic models;DTM;Mars;Quantitative modeling;Stereo analysis;Surface characteristics;Two-dimensional hydraulic model;Water flows;Hydraulic models
    日期: 2014-09
    上傳時間: 2015-06-15 16:25:13 (UTC+8)
    摘要: Stereo analysis of in-orbital imagery provides valuable topographic data for scientific research over planetary surfaces especially for the interpretation of potential fluvial activity. The focus of research into planetary fluvial activity has been shifting toward quantitative modeling with various spatial resolution DTMs from visual interpretation with ortho images. Thus in this study, we tested the application of hydraulic analysis with multi resolution Martian DTMs, which were constructed following the approaches of Kim and Muller (2009). Planet. Space Sci. 57 (14), 2095. Subsequently, a two-dimensional hydraulic model was introduced to conduct flow simulation using the extracted 1.2-150 m resolution DTMs. As a result, it was found that the simulated water flows coincided with what might be water eroded geomorphic features over target areas. Moreover, the information acquired from the modeling, such as water depth along the time line, flow direction and travel time, is proving of great value for the interpretation of surface characteristics. Results highlighted the importance of DTM quality for simulating fluvial channel hydraulics across planetary surfaces. © 2014 Elsevier Ltd. All rights reserved.
    關聯: Planetary and Space Science, 99, 55-69
    資料類型: article
    DOI 連結: http://dx.doi.org/10.1016/j.pss.2014.04.010
    DOI: 10.1016/j.pss.2014.04.010
    顯示於類別:[地政學系] 期刊論文

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