Developing spatially and thematically detailed backdated maps for land cover studies
Vidal Macua, Juan José (Universitat Autònoma de Barcelona. Departament de Geografia)
Zabala Torres, Alaitz (Universitat Autònoma de Barcelona. Departament de Geografia)
Ninyerola i Casals, Miquel (Universitat Autònoma de Barcelona. Departament de Biologia Animal, de Biologia Vegetal i d'Ecologia)
Pons, Xavier (Universitat Autònoma de Barcelona. Departament de Geografia)

Fecha:	2017
Resumen:	Global or regional land cover change on a decadal time scale can be studied at a high level of detail using the availability of remote sensing data such as that provided by Landsat. However, there are three main technical challenges in this goal. First, the generation of land cover maps without reference data is problematic (backdating). Second, it is important to maintain high accuracies in land cover change map products, requiring a reasonably rich legend within each map. Third, a high level of automation is necessary to aid the management of large volumes of data. This paper describes a robust methodology for processing time series of satellite data over large spatial areas. The methodology includes a retrospective analysis used for the generation of training and test data for historical periods lacking reference information. This methodology was developed in the context of research on global change in the Iberian Peninsula. In this study we selected two scenes covering geographic regions that are representative of the Iberian Peninsula. For each scene, we present the results of two classifications (1985-1989 and 2000-2004 quinquennia), each with a legend of 13 categories. An overall accuracy of over 92% was obtained for all 4 maps.
Nota:	Altres ajuts: ICREA Academia
Derechos:	Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, i la comunicació pública de l'obra, sempre que no sigui amb finalitats comercials, i sempre que es reconegui l'autoria de l'obra original. No es permet la creació d'obres derivades.
Lengua:	Anglès
Documento:	Article ; recerca ; Versió publicada
Materia:	Iberian Peninsula ; Land cover mapping ; Landsat ; Backdating ; Statistical classifiers
Publicado en:	International journal of digital earth, Vol. 10, Issue 2 (2017) , p. 175-206, ISSN 1753-8955

DOI: 10.1080/17538947.2016.1213320

33 p, 8.7 MB

El registro aparece en las colecciones:
Documentos de investigación > Documentos de los grupos de investigación de la UAB > Centros y grupos de investigación (producción científica) > Ciencias > Methods and Applications in Remote Sensing and Geographic Information Systems Research Group (GRUMETS)
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