Results 11 to 20 of about 980,187 (352)
, 2021 . The construction of terraces is a key soil conservation practice on agricultural land in China providing multiple valuable ecosystem services. Accurate spatial information on terraces is needed for both management and research. In this study, the first
Bowen Cao +9 more
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New high-fidelity terrain modeling method constrained by terrain semanteme. [PDF]
PLoS ONE, 2018 Production of higher-fidelity digital elevation models is important; as such models are indispensable components of space data infrastructure. However, loss of terrain features is a constant problem for grid digital elevation models, although these ...
Bo Zhou +3 more
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Shirkat Town Monitoring Using Digital Elevation Model [PDF]
Engineering and Technology Journal, 2011 In this search, a colored image of French satellite SPOT, of Shirkat country in Salahadeen was used with resolution about (5m) for an area with dimensions (4km×8km), and a digital elevation model (DEM) with grids (20m×20m) and levels reach to (1m ...
Iman A. Shawkat +2 more
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A PHASED CREATION OF DIGITAL ELEVATION MODEL FOR HYDRODYNAMIC MODELING IN FLAT ZONES
Facta Universitatis. Series: Architecture and Civil Engineering, 2022 Hydrodynamic modeling of rivers with flood simulation requires an accurate description of the riverbed and inundation morphology. Depending on a geodetic survey method and data collected, the digital elevation models with different accuracy can be ...
Borko Radivojević +3 more
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The Comparison of Different Procedures for the Preparing of the Digital Elevation Model, Case Study: Noferest watershed, Birjand township, South Khorasan Province [PDF]
جغرافیا و آمایش شهری منطقهای, 2014 The exact estimation of qualitative and quantitative characteristics of the natural phenomena requires a great deal of time and expense. Therefore, the interpolation procedures are used as a suitable solution in the estimation of the places which are ...
Ali. Ashrafi, Mohammad Ali. Alimi
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ASTER Global Digital Elevation Model (GDEM) and ASTER Global Water Body Dataset (ASTWBD)
Remote Sensing, 2020 The Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) is a 14-channel imaging instrument operating on NASA’s Terra satellite since 1999. ASTER’s visible–near infrared (VNIR) instrument, with three bands and a 15 m Instantaneous field
M. Abrams, R. Crippen, H. Fujisada
semanticscholar +1 more source
Use of HAND terrain descriptor for estimating flood-prone areas in river basins
Revista Brasileira de Ciências Ambientais, 2021 The flood hazard mapping in a river basin is crucial for flooding risk management, mitigation strategies, and flood forecasting and warning systems, among other benefits.
Ana Alice Rodrigues Dantas +1 more
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Visualization of a Digital Elevation Model
Data Science Journal, 2007 In recent years, Geographic Information Systems (GIS) have gradually changed from using the traditional 2D map expression to 3D visualization. The combination of visual techniques and GIS is a multi discipline, leading edge field, the development of ...
Linlin Lu, Huadong Guo
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Geografares, 2022 This study evaluated three orthophotos, generated from aerial surveys configured at 80 m, 100 m and 120 m in height with multirotor RPA, model Phantom 4 Pro from the company DJI coupled to Complementary Metal Oxide Semiconductor (CMOS) sensor of 1 inch ...
Agostinho Prado Alves Junior +1 more
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Non-affine georectification to improve the topographic fidelity of legacy geologic maps
International Journal of Applied Earth Observations and Geoinformation, 2022 Field-based geologic maps, which are among the most valuable tools of communication among geoscientists, can be expensive and time-consuming to produce or manually revise.
Yichuan Zhu +2 more
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