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- W3094603447 abstract "Understanding the surface topography is very essential for numerous Earth science applications and national infrastructure projects. With the advent of the satellite era, there have been numerous Digital Height Models (DHMs) available in the public domain. We use here the term DHM that includes discussions on both Digital Elevation Model (DEM) and Digital Surface Model (DSM). In this study, we analyse three freely-available global one-arc second DSMs of SRTM, ASTER, and ALOS World3D, and a three-arc second DEM of MERIT through validating with precise ground control points over Quang Ninh Province. The DSMs are subsequently inter-compared pixel-wise. Analysing the DHMs over Quang Ninh is of importance because of the 1) topography consisting of mountains, hills and coastal areas, 2) large mining activities, and 3) post-mining recreational activities. The analysis shows that none of the global DHM is suitable for Quang Ninh province because of the old datasets used in generating the global DHMs and horizontal shifts among the DHMs. A few options are then suggested to generate a precise local DHM over Quang Ninh Province." @default.
- W3094603447 created "2020-10-29" @default.
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- W3094603447 date "2020-10-26" @default.
- W3094603447 modified "2023-10-17" @default.
- W3094603447 title "Assessment of Global Digital Height Models over Quang Ninh Province, Vietnam" @default.
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- W3094603447 doi "https://doi.org/10.1007/978-3-030-60839-2_1" @default.
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