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dc.contributor.author
Antico, Andres
dc.date.available
2018-12-11T18:20:46Z
dc.date.issued
2012-09
dc.identifier.citation
Antico, Andres; Independent component analysis of MODIS-NDVI data in a large South American wetland; Taylor & Francis; Remote Sensing Letters; 3; 5; 9-2012; 383-392
dc.identifier.issn
2150-7058
dc.identifier.uri
http://hdl.handle.net/11336/66261
dc.description.abstract
Monthly images of Normalized Difference Vegetation Index (NDVI) from the moderate resolution imaging spectroradiometer (MODIS) are used to characterize the spatio-temporal variability of vegetation in a large South American wetland (SAW) (located in the Paraná River floodplain) during the period 2000-2009. While these data do not meet the requirements of classical component extraction techniques (CETs) (e.g. principal component analysis (PCA)), they are suitable for the modern method named independent component analysis (ICA). Hence, ICA is used here to extract three statistically independent modes of inter-annual MODIS-NDVI variability that are successfully interpreted as vegetation responses to hydrological changes. One mode isolates the vegetation response to a severe drought associated with La Niña 2007-2008. Another component reflects the expansion (or contraction) of lagoons owing to high (or low) water level of the Paraná River. The remaining mode captures the vegetation decrease caused by the flood related to El Niño 2006-2007. The results presented here for a particular wetland suggest that ICA of NDVI images is a powerful tool for identifying the physical causes of vegetation changes in other large wetlands. © 2011 Taylor & Francis.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Taylor & Francis
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Modis
dc.subject
Ndvi
dc.subject
Ica
dc.subject.classification
Meteorología y Ciencias Atmosféricas
dc.subject.classification
Ciencias de la Tierra y relacionadas con el Medio Ambiente
dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
dc.title
Independent component analysis of MODIS-NDVI data in a large South American wetland
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2018-09-18T16:23:47Z
dc.journal.volume
3
dc.journal.number
5
dc.journal.pagination
383-392
dc.journal.pais
Reino Unido
dc.journal.ciudad
Abingdon
dc.description.fil
Fil: Antico, Andres. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe; Argentina. Universidad Autónoma de Entre Ríos. Facultad de Ciencia y Tecnología. Centro Regional de Geomática; Argentina
dc.journal.title
Remote Sensing Letters
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.tandfonline.com/doi/abs/10.1080/01431161.2011.603376?journalCode=trsl20
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/https://doi.org/10.1080/01431161.2011.603376
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