Navigating Boundary Discrepancies in SAD69-Based Delimitation: A Case Study and Practical Guidelines

L. R. Costa, H. S. Delabary, R. Z. Araujo

2025

Abstract

The delimitation of the 84,130-hectare Serra do Tabuleiro State Park, a fully legally protected Conservation Unit in Santa Catarina, Brazil, relies on shapefiles provided by the managing institution and based on the SAD69 Coordinate Reference System. However, user-defined parameters when handling these shapefiles may result in up to three slightly different polygon representations, each affecting the perception of boundaries shared with adjacent territories. This study investigates these polygon discrepancies and assesses which representation most accurately reflects the intended delimitation. Although a definitive solution is not reached, the authors provide valuable recommendations for public authorities and GIS users to standardize interpretations and improve boundary accuracy.

Paper Citation

in Harvard Style

Costa L., Delabary H. and Araujo R. (2025). Navigating Boundary Discrepancies in SAD69-Based Delimitation: A Case Study and Practical Guidelines. In Proceedings of the 11th International Conference on Geographical Information Systems Theory, Applications and Management - Volume 1: GISTAM; ISBN 978-989-758-741-2, SciTePress, pages 150-156. DOI: 10.5220/0013209900003935

in Bibtex Style

@conference{gistam25,
author={L. Costa and H. Delabary and R. Araujo},
title={Navigating Boundary Discrepancies in SAD69-Based Delimitation: A Case Study and Practical Guidelines},
booktitle={Proceedings of the 11th International Conference on Geographical Information Systems Theory, Applications and Management - Volume 1: GISTAM},
year={2025},
pages={150-156},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0013209900003935},
isbn={978-989-758-741-2},
}

in EndNote Style

TY - CONF

JO - Proceedings of the 11th International Conference on Geographical Information Systems Theory, Applications and Management - Volume 1: GISTAM
TI - Navigating Boundary Discrepancies in SAD69-Based Delimitation: A Case Study and Practical Guidelines
SN - 978-989-758-741-2
AU - Costa L.
AU - Delabary H.
AU - Araujo R.
PY - 2025
SP - 150
EP - 156
DO - 10.5220/0013209900003935
PB - SciTePress