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Monitoring desertification in Biskra, Algeria using Landsat 8 and Sentinel-1A images

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Monitoring desertification in Biskra, Algeria using Landsat 8 and Sentinel-1A images

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dc.contributor.author Azzouzi, Soufiane Abdelaziz es_ES
dc.contributor.author Vidal Pantaleoni, Ana es_ES
dc.contributor.author Bentounes, Hadj Adda es_ES
dc.date.accessioned 2019-07-06T20:02:44Z
dc.date.available 2019-07-06T20:02:44Z
dc.date.issued 2018 es_ES
dc.identifier.uri http://hdl.handle.net/10251/123261
dc.description.abstract [EN] Desertification is the persistent degradation of ecosystems caused by environmental changes and human activities. This is a global problem closely related to climate change with severe consequences in urban locations. For that reason, monitoring those locations with low cost and freely available satellite images could be useful for local agencies. This work studies a strategy for the observation of desertification in Biskra (Algeria) with Landsat 8 images and Synthetic Aperture Radar (SAR) images from Sentinel-1A satellite. Radar images are now available from a growing number of missions. These microwave images add valuable additional information to the existing optical products involving soil roughness and moisture content. They are also a very valuable tool to detect man made objects. However, radar images are still difficult to exploit due to their inherent Speckle noise and their characteristics. This study searches the best methodology for the insertion of radar data to a previously designed approach that uses optical data. Several algorithms are implemented and evaluated and the best technique in terms of overall accuracy and Kappa coefficient is selected for the final change map production. The approach achieves Land Use Land Cover (LULC) change detection using Support Vector Machine (SVM) and segmentation. The most useful change indices are obtained for the best methodology product. The simple improved methodology including radar images provides excellent results and it clearly outperforms the baseline optical technique. es_ES
dc.language Inglés es_ES
dc.publisher Institute of Electrical and Electronics Engineers es_ES
dc.relation.ispartof IEEE Access es_ES
dc.rights Reserva de todos los derechos es_ES
dc.subject Change index es_ES
dc.subject Desertification es_ES
dc.subject Landsat 8 es_ES
dc.subject Sentinel-1A es_ES
dc.subject Synthetic Aperture Radar es_ES
dc.subject.classification TEORIA DE LA SEÑAL Y COMUNICACIONES es_ES
dc.title Monitoring desertification in Biskra, Algeria using Landsat 8 and Sentinel-1A images es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.1109/ACCESS.2018.2837081 es_ES
dc.rights.accessRights Abierto es_ES
dc.contributor.affiliation Universitat Politècnica de València. Departamento de Comunicaciones - Departament de Comunicacions es_ES
dc.description.bibliographicCitation Azzouzi, SA.; Vidal Pantaleoni, A.; Bentounes, HA. (2018). Monitoring desertification in Biskra, Algeria using Landsat 8 and Sentinel-1A images. IEEE Access. 6:30844-30854. https://doi.org/10.1109/ACCESS.2018.2837081 es_ES
dc.description.accrualMethod S es_ES
dc.relation.publisherversion https://doi.org/10.1109/ACCESS.2018.2837081 es_ES
dc.description.upvformatpinicio 30844 es_ES
dc.description.upvformatpfin 30854 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 6 es_ES
dc.identifier.eissn 2169-3536 es_ES
dc.relation.pasarela S\362342 es_ES


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