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Analysis and correction of digital elevation models for plain areas
(Amer Soc Photogrammetry, 2019-03)
Water movement modeling in plain areas requires digital elevation models (DEMs) adequately representing the morphological and geomorphological land patterns including the presence of civil structures that could affect water ...
Evaluation of Open Source Dems for Regional Hydrology Analysis in a Medium-Large Basin
(Austin Publishing group, 2016-09)
Nowadays exist a variety of topographic source with different spatialresolution obtained by using distinct methodologies. Choosing a data sourcethat is the more accurately possible in area relief, has become fundamental ...
Validación de modelos de elevación digital en los andes centrales de ChileValidation of digital elevation models in the Central Andes of Chile
(universidad Bernardo O’Higgins, 2020-12)
Este estudio validó la precisión y exactitud vertical de siete modelos de elevación digital DEM (SRTM X-SAR, SRTMv3 void filled 1 arcsec, SRTMv3 void filled 3 arcsec, SRTM GL1 Ellip, Aster GlobalDEM v3 2019/08. Alos World ...
Historic reconstruction of reservoir topography using contour line interpolation and Structure from Motion photogrammetry
(Taylor & Francis, 2018-09-05)
The geometry of impounded surfaces is a key tool to reservoir storage management and projection. Yet topographic data and bathymetric surveys of average-aged reservoirs may be absent for many regions worldwide. This paper ...
High resolution SPOT DEM over large areas in central and south Andes and observations on the 2018 Perito Moreno glacial lake outburst flood
(Comitato Glaciologico Italiano, 2020-04)
This study describes the use of multi-temporal SPOT 6 and 7 tri-stereo images for producing high resolution (3 × 3 m pixel) digital elevation models (DEM) over two large (2680 and 837 km2) mountainous and glaciated regions ...
A computational environment for water flow along floodplains
(Taylor & Francis Ltd, 2002-11)
A numerical model for the computer simulation of large floodplain inundations is presented. The model is extremely simple in order to achieve efficient computations in regions greater than 1000 km2. It is based on raster ...
Landslide change detection based on Multi-Temporal airborne LIDAR-derived DEMs
(Molecular Diversity Preservation International, 2018-01)
Remote sensing technologies have seen extraordinary improvements in both spatial resolution and accuracy recently. In particular, airborne laser scanning systems can now provide data for surface modeling with unprecedented ...
Unsupervised classification for landslide detection from airborne laser scanning
(MDPI, 2019-05)
Landslides are natural disasters that cause extensive environmental, infrastructure and socioeconomic damage worldwide. Since they are difficult to identify, it is imperative to evaluate innovative approaches to detect ...
Recent geodetic mass balance of Monte Tronador glaciers, northern Patagonian Andes
(Copernicus Publications, 2017-02)
Glaciers in the northern Patagonian Andes (35-46°gS) have shown a dramatic decline in area in the last decades. However, little is known about glacier mass balance changes in this region. This study presents a geodetic ...
Incidencia de los modelos digitales de elevación en la corrección geométrica de datos satelitales Quickbird: caso del SRTM-C, SRTM-X y ASTER GDEMImpact of digital elevation models on geometric correction of quickbird satellite data: case study with SRTM-C, SRTM-X y ASTER GDEM
(Universitat Autònoma de Barcelona, Departament de Geografia, 2011-12)
Se requiere un modelo digital de elevación (MDE) para corregir geométricamente (ortorrectificar) datos satelitales de áreas montañosas. Disponer de MDE con la exactitud necesaria es una dificultad habitual en muchas zonas ...