Digital Terrain Analysis to Understand Watershed Characterization Using Aster DEM: A Case Study of Jamuna Watershed of Assam, India

  • Unique Paper ID: 172915
  • PageNo: 1365-1374
  • Abstract:
  • Digital terrain analysis with the help of Digital Elevation Model (DEM) is most the common in various watershed related studies. In this study the Aster DEM software has been used because of its high resolution. The Jamuna watershed of Assam is located in remote area therefore this DEM data is quite reliable to delineate some of the thematic layers viz.- extracted DEM of the study area, slope, aspect, hill shade, flow direction, flow accumulation, stream order etc. These thematic layers are represented through cartographic techniques are helpful in analyzing the surface characteristics of the watershed, water concentration and presence of stream patterns. ArcGIS software has been used to complete the digital terrain analysis in the Jamuna watershed. The methodology involves preprocessing of DEM data to ensure accuracy and terrain attributes are computed using spatial analysis tools available in ArcGIS toolbox. The findings from the study contribute to a comprehensive understanding regarding Jamuna watershed's terrain characteristics; which will help in decision-making in various applications like land use planning and most importantly natural resource management in the study area.

Copyright & License

Copyright © 2026 Authors retain the copyright of this article. This article is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

BibTeX

@article{172915,
        author = {MONIJA NASRIN and Dr. Bikul Barman},
        title = {Digital Terrain Analysis to Understand Watershed Characterization Using Aster DEM: A Case Study of Jamuna Watershed of Assam, India},
        journal = {International Journal of Innovative Research in Technology},
        year = {2025},
        volume = {11},
        number = {9},
        pages = {1365-1374},
        issn = {2349-6002},
        url = {https://ijirt.org/article?manuscript=172915},
        abstract = {Digital terrain analysis with the help of Digital Elevation Model (DEM) is most the common in various watershed related studies. In this study the Aster DEM software has been used because of its high resolution. The Jamuna watershed of Assam is located in remote area therefore this DEM data is quite reliable to delineate some of the thematic layers viz.- extracted DEM of the study area, slope, aspect, hill shade, flow direction, flow accumulation, stream order etc. These thematic layers are represented through cartographic techniques are helpful in analyzing the surface characteristics of the watershed, water concentration and presence of stream patterns. ArcGIS software has been used to complete the digital terrain analysis in the Jamuna watershed. The methodology involves preprocessing of DEM data to ensure accuracy and terrain attributes are computed using spatial analysis tools available in ArcGIS toolbox. The findings from the study contribute to a comprehensive understanding regarding Jamuna watershed's terrain characteristics; which will help in decision-making in various applications like land use planning and most importantly natural resource management in the study area.},
        keywords = {DEM, digital terrain analysis, Jamuna Watershed.},
        month = {February},
        }

Cite This Article

NASRIN, M., & Barman, D. B. (2025). Digital Terrain Analysis to Understand Watershed Characterization Using Aster DEM: A Case Study of Jamuna Watershed of Assam, India. International Journal of Innovative Research in Technology (IJIRT), 11(9), 1365–1374.

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