Online Mars digital elevation model derived from profiles
نویسندگان
چکیده
منابع مشابه
Online Mars Dem Derived from Mola Profiles
Introduction: The topography of Mars is a key parameter for the understanding of the geological evolution of the planet [1]. Topographic data for most applications are represented as Digital Elevation Models (DEMs). DEMs are characterized by their spatial resolution (distance between neighbor points on the topographic grid) and the accuracy of elevations. The resolution and accuracy required de...
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As outer space image acquisition techniques progress, larger amounts of planetary data sets become available. Impact crater statistics about planets is an important resource as use of this information reveals geological history. Since manual detection of impact craters requires substantial human resource, there is a compelling need to investigate automated crater detection algorithms. In this s...
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Digital Elevation Models (DEMs) are used to estimate different morphologies, analysis of river profile, delineating drainage basin and drainage pattern associated with lithological and structural changes. The study area is Maroon River located in Khuzestan Province, Iran. In this study geomorphometric analysis based on DEM carried out to understand Maroon river uplift rate and tectonic- erosion...
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We study the accuracy of data on some local topographic attributes derived from digital elevation models (DEMs). First, we carry out a test for the precision of four methods for calculation of partial derivatives of elevations. We ® nd that the Evans method is the most precision algorithm of this kind. Second, we produce formulae for root mean square errors of four local topographic variables (...
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This paper explores a methodology for quantifying the uncertainty of DEMs created by digitising topographic maps. The origins of uncertainty in DEM production were identified and examined. The uncertainty of DEM data was quantified by computing a vector total of Root Mean Square Error (RMSE) from the source map, sampling and measurement errors, and the interpolation process. Distributional meas...
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ژورنال
عنوان ژورنال: Eos, Transactions American Geophysical Union
سال: 2003
ISSN: 0096-3941
DOI: 10.1029/2003eo520003