Development of a DEM in the GIS “PANORAMA” Based on a Topographic Map for the Southern Territory of the Fergana Valley

Authors

  • Dinara Abzhaparova

    Department of applied geodesy, Osh State University, Osh 723500, Kyrgyzstan
  • Erkin Mirmakhmudov

    Geodesy, cartography and cadastre department, National University of Uzbekistan, Tashkent 100174, Uzbekistan
  • Bekzod Toshonpv

    Geodesy, cartography and cadastre department, National University of Uzbekistan, Tashkent 100174, Uzbekistan
  • Zhanarbek Sultanov

    Department of applied geodesy, Osh State University, Osh 723500, Kyrgyzstan
  • Daniyar Muhtarov

    Department of applied geodesy, Osh State University, Osh 723500, Kyrgyzstan

DOI:

https://doi.org/10.30564/jees.v7i8.10001
Received: 13 May 2025 | Revised: 24 June 2025 | Accepted: 27 June 2025 | Published Online: 5 August 2025

Abstract

The capabilities of GIS for constructing a digital elevation model of a mountainous area and visualizing a spatial image of the terrain are given in this paper. Graphic, digital data and topographic maps, which are the main sources for GIS, are described. The methods of vectorization of isolines and the requirements for technical means of processing graphic materials are presented in detail. The advantages and disadvantages of the DEM of a mountainous region are shown here. Segmentation methods using an interpolation polynomial are described in detail. A DEM of the mountainous area where the border between the republics runs was constructed in 2D and 3D formats using the GIS Panorama. Reducing the chord length when segmenting isolines on topographic maps leads to more accurate DEM construction. A vertical profile of a mountainous area with a visibility zone between two points was constructed. It is expected that the improved latitude, longitude and altitude parameters of the topographic map will be used to form a regional geodetic network and geospatial analysis of mountain ranges. It is proposed to use not only satellite data, but also classical geodetic networks and maps. It is recommended to use satellite and aerial photography to clarify the topographic and geodetic support of the studied area.

Keywords:

Topographic Map; Coordinates; Segmentation; Vectorization; Isolines; Polynomial; DEM; GIS

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How to Cite

Abzhaparova, D., Erkin Mirmakhmudov, Bekzod Toshonpv, Zhanarbek Sultanov, & Daniyar Muhtarov. (2025). Development of a DEM in the GIS “PANORAMA” Based on a Topographic Map for the Southern Territory of the Fergana Valley. Journal of Environmental & Earth Sciences, 7(8), 16–21. https://doi.org/10.30564/jees.v7i8.10001

Issue

Vol. 7 , Iss. 8 (August 2025): In Progress

Article Type

Short Communication

License

Copyright © 2025 Dinara Abzhaparova, Erkin Mirmakhmudov, Bekzod Toshonpv, Zhanarbek Sultanov, Daniyar Muhtarov

Creative Commons License

This is an open access article under the Creative Commons Attribution-NonCommercial 4.0 International (CC BY-NC 4.0) License.

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