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3D GIS for surface modelling of magnetic fields generated by overhead power lines and their validation in a complex urban area
dc.contributor.author | Miravet-Garret, Laia | |
dc.contributor.author | De-Cózar-Macías, Óscar | |
dc.contributor.author | Blázquez-Parra, Elidia Beatriz | |
dc.contributor.author | Marín-Granados, Manuel Damián | |
dc.contributor.author | García-González, Juan Bernabé | |
dc.date.accessioned | 2022-04-22T08:40:55Z | |
dc.date.available | 2022-04-22T08:40:55Z | |
dc.date.issued | 2021-11-20 | |
dc.identifier.citation | Miravet Garret, Laia ; De-Cozar-Macias, Oscar ; Blazquez-Parra, Elidia Beatriz ; Marín-Granados, Manuel Damián ; García-Gónzalez, Juan Bernabé. 3D GIS for surface modelling of magnetic fields generated by overhead power lines and their validation in a complex urban area. Science of The Total Environment Volume 796, 20 November 2021, 148818. https://doi.org/10.1016/j.scitotenv.2021.148818 | es_ES |
dc.identifier.uri | https://hdl.handle.net/10630/23959 | |
dc.description.abstract | Residential exposure to magnetic fields generated by overhead high-voltage power lines, continues to be a mat- ter of social concern and, for the scientific community, a challenge to model this exposure accurately enough to reliably detect even small effects in large populations complexes. In any expression of the magnetic field inten- sity, the source-receiver distance is a determining variable, especially in an environment closer to the electrical installation and critical with the existence of significant unevenness in the terrain. However, MF exposure studies adopt, due to their complexity, simplifications of reality where even sometimes the terrain relief and the buckling of the line are not considered. The application of 3D techniques with Geographic Information Systems (GIS) al- lows us to address this problem. This article presents a model for generating magnetic field intensity surfaces from high-precision terrain elevation data. The series expansion of the Biot-Savart law to an infinite rectilinear conductor with variable height according to the catenary described by the cables using ArcGIS software is applied to calculate the magnetic field. For the validation, 69 control points (1035 field measurements) were used in a free urban area and another 28 points (420 field measurements) in a built-up urban area with complex relief. Good estimates were obtained, although with differences in both areas. With MAPE 9.65% and 19.51%, R2 = 0.922 and 0.949, RMSE = 0.154 and 0.094 μT, respectively. Furthermore, 86% of the points were correctly classi- fied according to usual exposure percentiles. However, the use of a 5 m resolution digital terrain model to obtain high-precision elevation data was an indispensable condition for the good performance of our model. The result as a continuous surface of magnetic field values at the real elevation of the ground can contribute significantly to the development of new environmental and public health studies. | es_ES |
dc.description.sponsorship | The authors wish to thank the company e-Distribución Redes Digitales SLU for providing all the technical data of the electrical line studied. Thanks to their support, it has been possible to develop this research. Likewise, they also want to express gratitude to the University of Malaga and CBUA (Consorcio de Bibliotecas Universitarias de Andalucía), for providing all the necessary equipment and publishing support for this work (funding for open access charge: Universidad de Málaga / CBUA). | |
dc.language.iso | eng | es_ES |
dc.publisher | ELSEVIER | es_ES |
dc.rights | info:eu-repo/semantics/openAccess | es_ES |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/4.0/ | * |
dc.subject | campos electromagnéticos | es_ES |
dc.subject.other | EMF | es_ES |
dc.subject.other | Overhead power lines | es_ES |
dc.subject.other | Exposure modelling | es_ES |
dc.subject.other | Geographical information system | es_ES |
dc.subject.other | Digital terrain model | es_ES |
dc.title | 3D GIS for surface modelling of magnetic fields generated by overhead power lines and their validation in a complex urban area | es_ES |
dc.type | info:eu-repo/semantics/article | es_ES |
dc.centro | Escuela de Ingenierías Industriales | es_ES |
dc.identifier.doi | https://doi.org/10.1016/j.scitotenv.2021.148818 | |
dc.rights.cc | Attribution-NonCommercial-NoDerivatives 4.0 Internacional | * |