Improvements to DEM Merging with r.mblend

Luís Moreira de Sousa; João Paulo Leitão

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Paper

Improvements to DEM Merging with r.mblend

Topics: Geocomputation; Geospatial Information and Technologies

In Proceedings of the 4th International Conference on Geographical Information Systems Theory, Applications and Management - GISTAM, 42-49, 2018 , Funchal, Madeira, Portugal

Authors: Luís Moreira de Sousa ¹ and João Paulo Leitão ²

Affiliations: ¹ ISRIC - World Soil Information, Netherlands ; ² Swiss Federal Institute of Aquatic Science and Technology (EAWAG), Switzerland

Keyword(s): Digital Elevation Model (DEM), Terrain Analysis, Raster.

Abstract: r.mblend is an implementation of the MBlend method for merging Digital Elevation Models (DEMs). This method produces smooth transitions between contiguous DEMs of different spatial resolution, for instance, when acquired by different sensors. r.mblend is coded on the Python API provided by the Geographic Resources Analysis Support System (GRASS), being fully integrated in that GIS software. It introduces improvements to the original method and provides the user with various parameters to fine tune the merging procedure. This article showcases the main differences between r.mblend and two conventional DEM merge methods: Cover and Average.

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Paper citation in several formats:

de Sousa, L. and Leitão, J. (2018). Improvements to DEM Merging with r.mblend. In Proceedings of the 4th International Conference on Geographical Information Systems Theory, Applications and Management - GISTAM, ISBN 978-989-758-294-3; ISSN 2184-500X, pages 42-49. DOI: 10.5220/0006672500420049

@conference{gistam18,
author={Luís Moreira {de Sousa}. and João Paulo Leitão.},
title={Improvements to DEM Merging with r.mblend},
booktitle={Proceedings of the 4th International Conference on Geographical Information Systems Theory, Applications and Management - GISTAM,},
year={2018},
pages={42-49},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0006672500420049},
isbn={978-989-758-294-3},
issn={2184-500X},
}

TY - CONF

JO - Proceedings of the 4th International Conference on Geographical Information Systems Theory, Applications and Management - GISTAM,
TI - Improvements to DEM Merging with r.mblend
SN - 978-989-758-294-3
IS - 2184-500X
AU - de Sousa, L.
AU - Leitão, J.
PY - 2018
SP - 42
EP - 49
DO - 10.5220/0006672500420049