Comparison of free high resolution digital elevation data sets (ASTER GDEM2, SRTM v2.1/v4.1) and validation against accurate heights from the Australian National Gravity Database

@article{Rexer2014ComparisonOF,
  title={Comparison of free high resolution digital elevation data sets (ASTER GDEM2, SRTM v2.1/v4.1) and validation against accurate heights from the Australian National Gravity Database},
  author={Moritz Rexer and Christian Hirt},
  journal={Australian Journal of Earth Sciences},
  year={2014},
  volume={61},
  pages={213 - 226}
}
  • M. Rexer, C. Hirt
  • Published 2014
  • Geology, Geography
  • Australian Journal of Earth Sciences
Today, several global digital elevation models (DEMs) are freely available on the web. This study compares and evaluates the latest release of the Advanced Spaceborne Thermal Emission Reflectometer DEM (ASTER GDEM2) and two DEMs based on the Shuttle Radar Topography Mission (SRTM) as released by the United States Geological Survey (SRTM3 USGS version 2.1) and by the Consortium for Spatial Information (SRTM CGIAR-CSI version 4.1) over the Australian continent. The comparison generally shows a… Expand
External Validation of the ASTER GDEM2, GMTED2010 and CGIAR-CSI- SRTM v4.1 Free Access Digital Elevation Models (DEMs) in Tunisia and Algeria
TLDR
This work is the first study to report the lower accuracy of ASTER GDEM2 compared to the GMTED2010 data. Expand
Vertical accuracy assessment of global digital elevation models and validation of gravity database heights in Niger
ABSTRACT In this study, we assessed the vertical accuracy of ASTER GDEM (Advanced Space-borne Thermal Emission and Reflection Radiometer – Global Digital Elevation Model) version 2, AW3D30 (ALOSExpand
Evaluation of intermediate TanDEM-X digital elevation data products over Tasmania using other digital elevation models and accurate heights from the Australian National Gravity Database
ABSTRACT The successful operation of the TanDEM-X satellite mission is the start of a new era of globally consistent and accurate digital elevation data for planet Earth. In this work available 12Expand
Vertical accuracy evaluation of freely available latest high-resolution (30 m) global digital elevation models over Cameroon (Central Africa) with GPS/leveling ground control points.
TLDR
ABSTRACT Digital Elevation Models (DEMs) contain topographic relief data that are vital for many geoscience applications and AW3D30 is more representative of the external topography over Cameroon in comparison with two others datasets and SRTM 1 can be a serious alternative for a range of DEM applications in Cameroon. Expand
Accuracy assessment of the TanDEM-X 90 Digital Elevation Model for selected floodplain sites
Abstract Freely available Global Digital Elevation Models (GDEMs) are essential for many scientific and humanitarian applications. Recently, TanDEM-X 90 has been released with a global coverage at 3Expand
Validation of digital elevation models (DEMs) and comparison of geomorphic metrics on the southern Central Andean Plateau
Abstract. In this study, we validate and compare elevation accuracy and geomorphic metrics of satellite-derived digital elevation models (DEMs) on the southern Central Andean Plateau. The plateau hasExpand
Quality assessment of open sourced digital elevation models in southeast coast of India
Abstract Digital elevation model (DEM) provides elevation values of the terrain. At present several open source DEMs are available and its vertical accuracy varies from place to place. The presentExpand
Assessment and comparison of Digital Elevation Model (DEM) products in varying topographic, land cover regions and its attribute: a case study in Shikoku Island Japan
Digital Elevation Model (DEM) is the model of Earth’s surface and is significantly variable for science application. The DEMs based on free provided are the 10 m DEM produced by the GeographicalExpand
Accuracy validation and comparison of global digital elevation models over Croatia
Accuracy assessment of digital elevation models (DEMs) plays an important role in facing their use in geoscience applications. This study investigates the vertical accuracy of most recently publishedExpand
Small Islands DEMs and Topographic Attributes Analysis: A Comparative Study among SRTM-V4.1, ASTER-V2.1, High Topographic Contours Map and DGPS
Rising sea levels due to global warming and climate change impact may prove a disaster for small islands. Accurate DEM can help to understand SLR (sea level rise) impact, coastal zones flooding risksExpand
...
1
2
3
4
5
...

References

SHOWING 1-10 OF 52 REFERENCES
Comparison and validation of the recent freely available ASTER-GDEM ver1, SRTM ver4.1 and GEODATA DEM-9S ver3 digital elevation models over Australia
This study investigates the quality (in terms of elevation accuracy and systematic errors) of three recent publicly available elevation model datasets over Australia: (i) the 9 arc second nationalExpand
ASTER Global Digital Elevation Model Version 2 - summary of validation results
NASA and the Ministry of Economy, Trade and Industry (METI) of Japan released a Global Digital Elevation Model (GDEM) to users worldwide at no charge as a contribution to the Global Earth ObservingExpand
Comparison of digital elevation models over Australia and external validation using ERS‐1 satellite radar altimetry
Digital elevation models (DEMs) are widely relied upon as representations of the Earth's topographic morphology. The most widely used global DEMs available are ETOPO5, TerrainBase and JGP95E at aExpand
Validation of the ASTER Global Digital Elevation Model Version 2 over the conterminous United States
Abstract. The ASTER Global Digital Elevation Model Version 2 (GDEM v2) was evaluated over the conterminous United States in a manner similar to the validation conducted for the original GDEM VersionExpand
Evaluation of SRTM3 and GTOPO30 Terrain Data in Germany
High-resolution terrain data are crucial for gravity field modelling in mountainous regions. In areas without national digital elevation models (DEMs) available, fill-ins from global models have toExpand
An evaluation of void‐filling interpolation methods for SRTM data
TLDR
A method to fill voids using a variety of interpolators and a method to determine the most appropriate void‐filling algorithms using a classification of the voids based on their size and a typology of their surrounding terrain. Expand
Operational TanDEM-X DEM calibration and first validation results
TLDR
This article presents an approach for the estimation of correction parameters for remaining systematic height errors applicable to interferometric height models based on a least-squares block adjustment using the elevation of ICESat GLA 14 data as ground control points and connecting points of adjacent, overlapping DEMs as tie-points. Expand
Characteristics of ASTER GDEM version 2
TLDR
Validation study of the trial and beta version of GDEM version 2 was carried out to investigate its characteristics such as geolocation error, elevation error and horizontal resolution, and confirmed that elevation offset and horizontalresolution will be greatly improved in version 2. Expand
The Shuttle Radar Topography Mission
TLDR
The Shuttle Radar Topography Mission (SRTM) is an interferometric SAR system that flew during 11-22 February 2000 aboard NASA's Space Shuttle Endeavour and collected highly specialized data that will allow the generation of Digital Terrain Elevation Data Level 2(DTED® 2). Expand
A National Digital Elevation Model for Resource and Environmental Management
The third dimension, elevation, is a vital component of Australiais National Spatial Data Infrastructure. Elevation information in an easily accessible digital form is necessary for efficient andExpand
...
1
2
3
4
5
...