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Improving the digital elevation model of topographic maps in GIS (applied study on Al-Tharthar Lake)

    Ali Khalil Khalaf Al-Jabiri

Al-Anbar University Journal For Humanities, 2022, Volume 2022, Issue 4, Pages 4077-4100
10.37653/juah.2022.176875

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Abstract

The research aims to be an attempt by the researchers to apply improving the model of the digital rise, thus opening the way for researchers who are interested in developing and expanding this idea in the future. The development of the improved digital elevation model within the boundaries of Al-Tharthar Lake its elevation levels means the unimproved digital elevation model within the lake boundaries of Mozaic topographic maps, in order to avoid the limitations of the unimproved digital elevation model that shows the entire lake at a level   of 44 meters above sea level, so the improved digital elevation model shows its morphological, hydrological, topographic and topographic properties within the lake's various elevations within the lake's various elevations within the boundaries of the lake.
These proposed steps in the research have proven to be efficient in improving digital elevation models, and the improved digital elevation model has proven to be highly effective in giving a high-level geo-reality perception of the lake greater credibility than it does: the unimproved digital elevation model as well as the old topographic maps. One of the recommendations of the research, recommends the Ministry of Water Resources and General directorate of Survey do accurate field survey principally hydrographic survey for lakes and rivers of the country through the marine area devices which are the best way to represent the topography of the lake with very high accuracy on two levels: horizontal topographic morphometric, vertical interval and elevation levels from both local and national geodesic reference. Consequently, the possibility of updating topographic maps which belong to 20th century
Keywords:
    Digital Elevation Model Topographic Maps Tharthar Lake Geomatics
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(2022). Improving the digital elevation model of topographic maps in GIS (applied study on Al-Tharthar Lake). Al-Anbar University Journal For Humanities, 2022(4), 4077-4100. doi: 10.37653/juah.2022.176875
Ali Khalil Khalaf Al-Jabiri. "Improving the digital elevation model of topographic maps in GIS (applied study on Al-Tharthar Lake)". Al-Anbar University Journal For Humanities, 2022, 4, 2022, 4077-4100. doi: 10.37653/juah.2022.176875
(2022). 'Improving the digital elevation model of topographic maps in GIS (applied study on Al-Tharthar Lake)', Al-Anbar University Journal For Humanities, 2022(4), pp. 4077-4100. doi: 10.37653/juah.2022.176875
Improving the digital elevation model of topographic maps in GIS (applied study on Al-Tharthar Lake). Al-Anbar University Journal For Humanities, 2022; 2022(4): 4077-4100. doi: 10.37653/juah.2022.176875
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1-USGS Geological Survey, International Information web, the website link is: https://www.usgs.gov/.

2-         Stan Moraine, Ed, Gis solution in Natural Resource Management, Tenewable Natural Resource Foundation and National Academy of Sciences National Research Council, Washinghton, 1999, p. 88.

3-Ali Khalil Khalaf Al-Jabri, ous talak mashaan Al-maadidi and Mazhar mujbel Nahr al-Jabri, modeling the topography of talthar lake from topographic maps in geographic information systems, an earlier source, P.1243.

4-Ministry of Water Resources, Directorate General Survey, Department of map production, Baghdad.

5-a set of topographic maps with a scale of 1/ 100000, are:

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