Adjusting Lidar-Derived Digital Terrain Models in Coastal Marshes Based on Estimated Aboveground Biomass Density [PDF]
Remote Sensing, 2015 Digital elevation models (DEMs) derived from airborne lidar are traditionally unreliable in coastal salt marshes due to the inability of the laser to penetrate the dense grasses and reach the underlying soil.
Stephen Medeiros +3 more
doaj +5 more sources
Utilization of Satellite-based Digital Elevation Model (DEM) for Hydrologic Applications: A Review
Journal of the Geological Society of India, 2018 ABSTRACT Digital elevation model (DEM) derived conventionally from topographic maps and space borne satellites will provide various evidences about the change in earth features. It is one of the most fundamental data source of topographical relief information and delineate watershed boundaries which is being widely applied in numerous ...
Asif Gul +5 more
openaire +3 more sources
A new digital elevation model of Antarctica derived from CryoSat-2 altimetry [PDF]
, 2017 We present a new digital elevation model (DEM) of the Antarctic ice sheet and ice shelves based on 2.5 × 108 observations recorded by the CryoSat-2 satellite radar altimeter between July 2010 and July 2016.
Gilbert, L +7 more
core +4 more sources
Development of digital elevation models (DEMs) for agricultural applications
, 2008 Topographic data collected using RTK-DGPS-equipped farm vehicles during field operations could add additional benefits to the original capital investment in the equipment through the development of high accuracy field-DEMs. Repeated surveys of elevation data from repeated field operations may improve DEM accuracy over time.
Samsuzana Abd Aziz
openalex +5 more sources
Digital elevation model validation with no ground control: application to the topodata dem in Brazil [PDF]
, 2014 Digital Elevation Model (DEM) validation is often carried out by comparing the data with a set of ground control points. However, the quality of a DEM can also be considered in terms of shape realism.
Laurent Polidori +2 more
openalex +2 more sources
A Seamless, High-Resolution, Coastal Digital Elevation Model (DEM) for Southern California [PDF]
Data Series, 2010 A seamless, three-meter digital elevation model (DEM) was constructed for the entire Southern California coastal zone, extending 473 km from Point Conception to the Mexican border. The goal was to integrate the most recent, high-resolution datasets available (for example, Light Detection and Ranging (Lidar) topography, multibeam and single beam sonar ...
Daniel J. Hoover, Patrick L. Barnard
openaire +3 more sources
Effects of Digital Elevation Models (DEM) Spatial Resolution on Hydrological Simulation [PDF]
journal of watershed management research, 2019 Ataollah Kavian, Maziar Mohammadi
openalex +3 more sources
Evaluation of the Efficiency of SfM-Photogrammetry in Obtaining DEM from Google Earth Images [PDF]
JES: Journal of Engineering Sciences, 2023 In this study, we seek to evaluate the efficiency of SfM Photogrammetry in obtaining Digital Elevation Model (DEM) from the free Google Earth browser, by simulating the aerial photography of the terrain displayed by this browser, calculating the ...
Ahmed A Elashiry, Omar Al Khalil
doaj +1 more source
IOP Conference Series: Earth and Environment, 2022 Digital Elevation Model (DEM) is a digital representation of ground surface topography or terrain. There are many freely available DEM data with a spatial resolution of 30 m to 90 m.
L. Chai +6 more
semanticscholar +1 more source