High-quality seamless DEM generation blending SRTM-1, ASTER GDEM v2 and ICESat/GLAS observations
نویسندگان
چکیده
منابع مشابه
Assessment of Srtm, Ace2 and Aster-gdem Using Rtk-gps
To date, the majority of digital elevation models (DEMs) are generated using photogrammetric methods. Recent remote sensing techniques, such as radar interferometry (InSAR), have also been used to generate high quality DEMs over a great area. Spaceborne high resolution DEMs with almost global coverage, such as SRTM, ACE2 and ASTER-GDEM, were made available to the public in the last few years. T...
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Topographic parameters in glacier inventories are a requirement to analyze glacier characteristics and are of vital importance for several subsequent applications. To obtain the topographic information a digital elevation model (DEM) is required; however, in many regions of the world no national or local DEM of sufficient quality is available. With the SRTM DEM and the ASTER Global Digital Elev...
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The last 20 years show an enormous resolution improvement of worldwide available Digital Elevation Models. At present, the ASTER Global Digital Elevation Model (GDEM) with a resolution of 30 m shows an evolution from the GTOPO 30 model (1000 m) of the year 1996 and the SRTM model (90 m) of the year 2000. However, little is known about the accuracy of the ASTER GDEM itself and for the official t...
متن کاملHow to merge a DEM ?
A DEM is one of the most useful information for spatial modelling and monitoring. Several DEMs have been published in the public domain like SRTM and ASTER GDEM with and without considering the horizontal and vertical misallocation of single input data. Results of that are for example the inherent errors in the ASTER GDEM V1 dataset as well as the known striping in the SRTM dataset. Therefore, ...
متن کاملComparison and validation of the recent freely-available ASTER- GDEM ver1, SRTM ver4.1 and GEODATA DEM-9S ver3 digital elevation models over Australia
Western Australian Centre for Geodesy & The Institute for Geoscience Research, Curtin University of Technology, GPO Box U1987, Perth WA 6845, Australia, * Tel: (08) 9266 2218; Fax: (08) 9266 2703; Email: [email protected] 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 This study investigates the quality (in terms of elevation accuracy and systematic errors) of three recent publicly...
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ژورنال
عنوان ژورنال: ISPRS Journal of Photogrammetry and Remote Sensing
سال: 2017
ISSN: 0924-2716
DOI: 10.1016/j.isprsjprs.2016.11.002