Results 1 to 10 of about 23,863,306 (321)

A Method of Optimizing Terrain Rendering Using Digital Terrain Analysis [PDF]

open access: yesISPRS International Journal of Geo-Information, 2021
Terrain rendering is an important issue in Geographic Information Systems and other fields. During large-scale, real-time terrain rendering, complex terrain structure and an increasing amount of data decrease the smoothness of terrain rendering. Existing
Lei Zhang   +4 more
doaj   +3 more sources

A Terrain-Aided Navigation Method Incorporating Terrain Matching and Terrain Suitability Analysis

open access: yesIEEE Access
Underwater terrain-aided navigation system can effectively correct the drift error of inertial navigation system that gradually increases with the accumulation of time, among which, underwater terrain suitability analysis is an important part of ...
Gang Fan   +6 more
doaj   +2 more sources

Scale-Specific Prediction of Topsoil Organic Carbon Contents Using Terrain Attributes and SCMaP Soil Reflectance Composites

open access: yesRemote Sensing, 2022
There is a growing need for an area-wide knowledge of SOC contents in agricultural soils at the field scale for food security and monitoring long-term changes related to soil health and climate change.
Markus Möller   +4 more
doaj   +1 more source

Analysis of terrain navigability in underwater terrain aided navigation [PDF]

open access: yesJournal of Physics: Conference Series, 2021
Abstract Aiming at the problem that the single terrain characteristic parameter cannot comprehensively evaluate the terrain navigability of the matching areas, the weighted vector correlation degree is introduced, and the terrain characteristic parameters such as the standard deviation of terrain elevation, roughness, correlation ...
Miao Zhao, Zhenyang Xu, MA Weiqiang
openaire   +1 more source

INTEGRATED LAND COVER AND TERRAIN ANALYSIS FOR SUSTAINABLE LAND USE PLANNING AT WATERSHED SCALE: A CASE STUDY OF BAN DAN NA KHAM WATERSHED OF NORTHERN THAILAND [PDF]

open access: yesMalaysian Journal of Sustainable Agriculture, 2021
Soil is a fundamental natural resource that is vital to the sustainable development of human societies. However, in many developing countries, increased intensity of use and inadequate land use planning has put a lot of pressure on marginal soil, leading
Chike Onyeke Madueke   +2 more
doaj   +1 more source

Parameter Analysis for Guarding Terrains

open access: yesAlgorithmica, 2022
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Akanksha Agrawal   +2 more
openaire   +4 more sources

Automated Conflation of Digital Elevation Model with Reference Hydrographic Lines

open access: yesISPRS International Journal of Geo-Information, 2020
Combining misaligned spatial data from different sources complicates spatial analysis and creation of maps. Conflation is a process that solves the misalignment problem through spatial adjustment or attribute transfer between similar features in two ...
Timofey E. Samsonov
doaj   +1 more source

Geomorphologic Landviews Classification, Based on Topographical Parameters in GIS (Case Study: Northwest of Shiraz) [PDF]

open access: yesجغرافیا و توسعه, 2009
Topographic parameters extracted from digital elevation model (DEM), provide valuable information about characteristics of the earth surface. These parameters are used in quantitative geomorphology with regard to terrain analysis.
amir karam
doaj   +1 more source

Flood Risk Analysis on Terrains [PDF]

open access: yesProceedings of the 25th ACM SIGSPATIAL International Conference on Advances in Geographic Information Systems, 2017
An important problem in terrain analysis is modeling how water flows across a terrain and creates floods by filling up depressions. In this article, we study the flooding query problem: Preprocess a given terrain Σ, represented as a triangulated xy -monotone surface with n
Aaron Lowe   +2 more
openaire   +2 more sources

Topographic Characteristics of Drainage Divides at the Mountain-Range Scale—A Review of DTM-Based Analytical Tools

open access: yesISPRS International Journal of Geo-Information, 2022
We review DTM-based measures that can be applied to study the main drainage divides of mountain ranges. Both measures proposed in the past and new or modified approaches are presented, in order to show an ensemble of tools and jointly discuss their ...
Kacper Jancewicz   +4 more
doaj   +1 more source

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