<abstract xmlns="http://www.w3.org/1999/xhtml">

<p>Nowadays, there are many area-based Geographic Information Systems (GIS) applications such as real estate valuation, land tax, farming support and cost–benefit analysis. Areas used in such applications are calculated by means of two-dimensional plane geometry. However, the computed area value is not the exact area value in the terrain. In order to calculate the exact area value of a parcel, area corrections due to various factors must be taken into account. These factors are selection of projection, slope of the terrain, elevation of the terrain and scale of the map. Selection of projection and slope of terrain are available; elevation of the terrain and scale of map are not available in all GIS software. In this study, the effect of area corrections on the area value calculated from the map is examined with sample applications and the results are presented to the GIS users. According to the results, GIS users should select the equal area projection. In addition, scale of map, elevation and slope of terrain should be taken into account in the area calculation where land measurements are not possible.</p>
</abstract>

Nowadays, there are many area-based Geographic Information Systems (GIS) applications such as real estate valuation, land tax, farming support and cost–benefit analysis. Areas used in such applications are calculated by means of two-dimensional plane geometry. However, the computed area value is not the exact area value in the terrain. In order to calculate the exact area value of a parcel, area corrections due to various factors must be taken into account. These factors are selection of projection, slope of the terrain, elevation of the terrain and scale of the map. Selection of projection and slope of terrain are available; elevation of the terrain and scale of map are not available in all GIS software. In this study, the effect of area corrections on the area value calculated from the map is examined with sample applications and the results are presented to the GIS users. According to the results, GIS users should select the equal area projection. In addition, scale of map, elevation and slope of terrain should be taken into account in the area calculation where land measurements are not possible.

Determining the area corrections affecting the map areas in GIS applications

Reports on Geodesy and Geoinformatics

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

{"article-title":"Determining the area corrections affecting the map areas in GIS applications"}

Nowadays, there are many area-based Geographic Information Systems (GIS) applications such as real estate valuation, land tax, farming support and cost–benefit...

Determining the area corrections affecting the map areas in GIS applications

Article Category: Original Article

Published Online: Dec 11, 2021

Page range: 9 - 17

Received: Jun 08, 2021

Accepted: Nov 02, 2021

DOI: https://doi.org/10.2478/rgg-2021-0003

Keywords
Area-based GIS applications, area correction, exact area value, equal area projection, GIS software

© 2021 Faruk Yildirim et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Determining the area corrections affecting the map areas in GIS applications

Article Category: Original Article

Published Online: Dec 11, 2021

Page range: 9 - 17

Received: Jun 08, 2021

Accepted: Nov 02, 2021

DOI: https://doi.org/10.2478/rgg-2021-0003

KeywordsArea-based GIS applications, area correction, exact area value, equal area projection, GIS software

© 2021 Faruk Yildirim et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Keywords
Area-based GIS applications, area correction, exact area value, equal area projection, GIS software