Results 21 to 30 of about 499,530 (305)
EVALUATION OF AIRBORNE L- BAND MULTI-BASELINE POL-INSAR FOR DEM EXTRACTION BENEATH FOREST CANOPY [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2018 DEM beneath forest canopy is difficult to extract with optical stereo pairs, InSAR and Pol-InSAR techniques. Tomographic SAR (TomoSAR) based on different penetration and view angles could reflect vertical structure and ground structure.
W. M. Li +4 more
doaj +1 more source
Implications of Different DEMs on Watershed Runoffs Estimations
Journal of Water Resource and Protection, 2019 Watershed modelling tools like ArcSWAT, an ArcGIS extension of Soil and Water Assessment tool (SWAT), are useful to watershed managers in many ways. One particular use is analyzing model outputs for decision making related to waterway restoration and mitigation, which is often undertaken to improve water quality in streams.
Nazia N. Arbab +3 more
openaire +2 more sources
Applied Sciences, 2021 A digital elevation model (DEM) digitally records information about terrain variations and has found many applications in different fields of geosciences. To protect such digital information, encryption is one technique.
Xinghua Cheng, Zhilin Li
doaj +1 more source
Assessing performance of conservation-based Best Management Practices: Coarse vs. fine-scale analysis [PDF]
, 2010 Background/Questions/Methods Animal agriculture in the Spring Creek watershed of central Pennsylvania contributes sediment to the stream and ultimately to the Chesapeake Bay.
Denise A. Piechnik +2 more
core +2 more sources
Comparing Methods for Interpolation to Improve Raster Digital Elevation Models [PDF]
, 2012 Digital elevation models (DEMs) are available as raster files at 100m, 30m, and 10m resolutions for the contiguous United States and are used in a variety of geographic analyses. Some projects may require a finer resolution.
Guarneri, J. C., Weih, R. C., Jr.
core +3 more sources
Remote Sensing, 2020 Spaceborne remote sensing can track ecosystems changes thanks to continuous and systematic coverage at short revisit intervals. Active remote sensing from synthetic aperture radar (SAR) sensors allows day and night imaging as they are not affected by ...
Ignacio Borlaf-Mena +4 more
doaj +1 more source
Improving the Accuracy of TanDEM-X Digital Elevation Model Using Least Squares Collocation Method
Remote Sensing, 2023 The TanDEM-X Digital Elevation Model (DEM) is limited by the radar side-view imaging mode, which still has gaps and anomalies that directly affect the application potential of the data. Many methods have been used to improve the accuracy of TanDEM-X DEM,
Xingdong Shen, Cui Zhou, Jianjun Zhu
doaj +1 more source
Parametrisation of a DEM model for railway ballast under different load cases [PDF]
Granular Matter, 2017 The prediction quality of discrete element method (DEM) models for railway ballast can be expected to depend on three points: the geometry representation of the single particles, the used contact models and the parametrisation using principal experiments. This works aims at a balanced approach, where none of the points is addressed with excessive depth.
Bettina Suhr, Klaus Six
openaire +2 more sources
Blobs in recurring EUV jets [PDF]
, 2014 In this paper, we report our discovery of blobs in the recurrent and homologous jets that occurred at the western edge of NOAA active region 11259 on 2011 July 22.
Ji, H. S., Zhang, Q. M.
core +1 more source
The effect of grid size on the quantification of erosion, deposition, and rill network
International Soil and Water Conservation Research, 2017 Hillslope rill/interrill erosion has been investigated from the perspective of runoff transport of sediment. Recent advances in terrestrial laser scanning can provide high-resolution elevation data up to centimeter levels, and temporal digital elevation ...
Xiaoyu Lu +5 more
doaj +1 more source