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Priti Girohi and Ashutosh Bhardwaj
Interferometry Synthetic Aperture Radar (InSAR) is an advanced remote sensing technique for studying the earth?s surface topography and deformations; it is used to generate high-quality Digital Elevation Models (DEMs). DEMs are a crucial and primary inpu...
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Elisabete S.V. Monteiro, Cidália C. Fonte and João L.M.P. de Lima
Terrain slope and drainage networks are useful components to the basins morphometric characterization as well as to hydrologic modelling. One way to obtain the slope, drainage networks, and basins delineation is by their extraction from Digital Elevation...
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Marian Rybansky and Josef Rada
This study investigated digital terrain models and options for their evaluation and effective usage. The most important result of this study was the introduction of the slope reduction method for low-detail elevation models. It enabled accurate results o...
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Michelle Linklater, Timothy C. Ingleton, Michael A. Kinsela, Bradley D. Morris, Katie M. Allen, Michael D. Sutherland and David J. Hanslow
In 2017, the New South Wales (NSW) Office of Environment and Heritage (OEH) initiated a state-wide mapping program, SeaBed NSW, which systematically acquires high-resolution (2?5 m cell size) multibeam echosounder (MBES) and marine LiDAR data along more ...
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Olga Sánchez-Guillamón, Luis Miguel Fernández-Salas, Juan-Tomás Vázquez, Desirée Palomino, Teresa Medialdea, Nieves López-González, Luis Somoza and Ricardo León
Derived digital elevation models (DEMs) are high-resolution acoustic technology that has proven to be a crucial morphometric data source for research into submarine environments. We present a morphometric analysis of forty deep seafloor edifices located ...
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Theresa Theunissen, Julia Keller and Heinz Bernhardt
The adoption of farm management information systems (FMIS) is on the rise at German dairy farms given their benefits in supporting and automating decision-making processes. However, the offering scope of FMIS for dairy farmers is limited, with digital se...
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Nadeem Fareed and Chi-Kuei Wang
High-resolution digital elevation models (HR-DEMs) originating from airborne laser scanning (ALS) point clouds must be transformed into Culvert-modified DEMs for hydrological and geomorphological analysis. To produce a culvert-modified DEM, information o...
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Md. N. M. Bhuyian, Alfred Kalyanapu and Faisal Hossain
This study assessed the uncertainty in flood impact assessment (FIA) that may be introduced by errors in moderate resolution regional and moderate resolution global Digital Elevation Models (DEM). One arc-second National Elevation Dataset (NED) and one a...
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Bas Van de Sande, Joost Lansen and Claartje Hoyng
Most coastal flood risk studies make use of a Digital Elevation Model (DEM) in addition to a projected flood water level in order to estimate the flood inundation and associated damages to property and livelihoods. The resolution and accuracy of a DEM ar...
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Lilai Jin, Sarah J. Higgins, James A. Thompson, Michael P. Strager, Sean E. Collins and Jason A. Hubbart
Saturated hydraulic conductivity (Ksat) is a hydrologic flux parameter commonly used to determine water movement through the saturated soil zone. Understanding the influences of land-use-specific Ksat on the model estimation error of water balance compon...
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Zihan Liu, Hongming Zhang, Liang Dong, Zhitong Sun, Shufang Wu, Biao Zhang, Linlin Yuan, Zhenfei Wang and Qimeng Jia
The positive and negative terrains (P?N terrains) of the Loess Plateau of China are important geographical topography elements for measuring the degree of surface erosion and distinguishing the types of landforms. Loess shoulder-lines are an important te...
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Antonio Minervino Amodio, Gianluigi Di Paola and Carmen Maria Rosskopf
The use of Unmanned Aerial Vehicles (UAVs) represents a rather innovative, quick, and low-cost methodological approach offering applications in several fields of investigation. The present study illustrates the developed method using Digital Elevation Mo...
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Hong Wei, Sijin Li, Chenrui Li, Fei Zhao, Liyang Xiong and Guoan Tang
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Shijin Li, Shubi Zhang, Tao Li, Yandong Gao, Qianfu Chen and Xiang Zhang
Interferometric synthetic aperture radar (InSAR) is one of the best methods for obtaining digital elevation models (DEMs). However, the problem of the uncertainty of DEM accuracy affected by the perpendicular baseline still persists, which should be as l...
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Omar E. Mora, M. Gabriela Lenzano, Charles K. Toth, Dorota A. Grejner-Brzezinska and Jessica V. Fayne
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 resolution and accuracy, which ...
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Maurizio Barbarella, Alessandro Di Benedetto, Margherita Fiani, Domenico Guida and Andrea Lugli
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Francisco Javier Ariza-López,Elena Gabriela Chicaiza Mora,José Luis Mesa Mingorance,Jianhong Cai,Juan Francisco Reinoso Gordo
Pág. 131 - 171
The importance of Digital Elevation Models (DEMs) is great in geosciences, but a general view of users and uses which would bring the concept of quality closer to users is lacking. For this reason, the aim of this paper was three-fold: to obtain better k...
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Omar E. Mora, M. Gabriela Lenzano, Charles K. Toth, Dorota A. Grejner-Brzezinska and Jessica V. Fayne
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 resolution and accuracy, which ...
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José Luis Mesa-Mingorance, Elena Gabriela Chicaiza, Xavier Buenaño, Jianhong Cai, Antonio Federico Rodríguez-Pascual and Francisco Javier Ariza-López
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Manuel Antonio Ureña-Cámara and Antonio Tomás Mozas-Calvache
This study describes a new algorithm developed to detect local cells of minimum or maximum heights in grid Digital Elevation Models (DEMs). DEMs have a low variance in digital levels due to the spatial continuity of the data. Traditional algorithms, such...
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