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Pregledni rad

https://doi.org/10.15233/gfz.2018.35.7

Review and critical analysis on digital elevation models

Subbu Esakkipandian Lakshmi ; Centre for Disaster Mitigation and Management, Vellore Institute of Technology (VIT), Vellore, India
Kiran Yarrakula ; Centre for Disaster Mitigation and Management, Vellore Institute of Technology (VIT), Vellore, India


Puni tekst: engleski pdf 327 Kb

str. 129-157

preuzimanja: 441

citiraj


Sažetak

Nowadays, digital elevation model (DEM) acts as an inevitable component in the field of remote sensing and GIS. DEM reflects the physical surface of the earth helps to understand the nature of terrain by means of interpreting the landscape using modern techniques and high-resolution satellite images. To understand and analyze the nature of the terrain, DEM is required in many fields in the improvement of developing the product and decision making, mapping purpose, preparing 3D simulations, estimating river channel and creating contour maps to extract the elevation and so on. DEM in various applications will be useful to replicate the overall importance of the availability of worldwide, consistent, high-quality digital elevation models. The present article represents the overall review of DEMs, its generation, development using various techniques derived from topographic maps and high-resolution satellite images over a decade to present. It is useful to understand the nature of topography, address the practical problems and fix them by applying innovative ideas, upcoming high-resolution satellite images and techniques.

Ključne riječi

DEM; high resolution; satellite images; topography; accuracy; terminology; techniques and development

Hrčak ID:

216905

URI

https://hrcak.srce.hr/216905

Datum izdavanja:

21.1.2019.

Podaci na drugim jezicima: hrvatski

Posjeta: 1.683 *