A GIS Based Approach to Generate Feasible Digital Contour Map Using Different DEM Interpolation Methods; A Case Study of Aliganj, Lucknow

  • Unique Paper ID: 154693
  • Volume: 8
  • Issue: 12
  • PageNo: 125-131
  • Abstract:
  • This study was carried out to extract digital contour lines for observing and obtaining Digital Terrain Model (DTM) over existing methods. Recognition of the surface pattern of the earth on the basis of contour maps is extremely practical and useful for Remote Sensing and GIS applications in smart city solutions such as design of stormwater management system, for layout and design of sewerage infrastructure in the city, pipeline operations and integrity management etc. Here, in this study the Deterministic methods for spatial interpolation was applied which generates surfaces from measured geographic points, based on the extent of similarity (inverse distance weighted). Nowadays, open-source geo-spatial data is freely available on the internet in wide range & to take advantage of it the point data file: latitude and longitude was obtained from Google earth pro engine and the elevation data was collected for all geographical points by processing with GPS visualizer and TCX converter utility tool. Lastly, the obtained information was processed using ArcGIS 10.8 software by applying four different interpolation techniques to create contour lines which can be used for real-time multipurpose planning for smart cities.

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