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Fenología de ambientes tropicales en el marco de la teledetección

dc.creatorAnaya Acevedo, Jesús A.spa
dc.creatorValencia Hernández, Germán M.spa
dc.date.accessioned2017-06-15T22:05:19Z
dc.date.available2017-06-15T22:05:19Z
dc.date.created2013
dc.identifier.citationAnaya Acevedo, J. A. & Valencia Hernández, G. M. (2013). Fenología de ambientes tropicales en el marco de la teledetección. GeoFocus. Revista Internacional de Ciencia y Tecnología de la Información Geográfica, 13 (2), 195-211.spa
dc.identifier.issn15785157
dc.identifier.urihttp://hdl.handle.net/11407/3424
dc.descriptionEl principal objeto de estudio es el cambio de NDVI en la vegetación a lo largo del tiempo como aproximación a la fenología en el contexto de la teledetección. Las coberturas vegetales presentan diferentes patrones fenológicos debido a las estaciones en latitudes altas y el clima, pero se espera que estos patrones también puedan ser detectados en las series de tiempo NDVI ambientes tropicales. Trece sitios (una serie de tiempo para cada sitio) fueron seleccionados en la parte más septentrional de Sudamérica con el fin de evaluar la existencia de patrones temporales en el Trópico. Se encontró que los métricos de series de tiempo permiten identificar claramente los cultivos de arroz, caña de azúcar y pastos. Se encontraron patrones claros de NDVI para cultivos mixtos, monocultivos de arroz, palma africana, banano y café. Además, la comparación de bosques adyacentes deforestados y no-deforestados permitió determinar fechas de deforestación. Los sitios con alta cobertura de nubes no pueden estudiarse con este método.spa
dc.descriptionThe overall goal of this study is the change of vegetation NDVI as an approach to phenology within the context of remote sensing. Vegetation cover has different phenological patterns due to seasons at high latitude regions and climate. It is expected that this pattern can also be detected with NDVI time series in the tropical environment. Thirteen sites (a time series for each site) were selected in the northern part of South America as a mean to evaluate the existence of temporal patterns. It was found that metrics of time series allowed identifying rice crops, sugar cane crops and pastures. Clear patterns of NDVI for mixed crops, rice, palm oil, banana and coffee were also found. In addition, the comparison of natural forests and deforested forests allowed determining the deforestation date. Those sites with high cloud content throughout the year must be discarded when using these methods.spa
dc.language.isospa
dc.publisherAsociación de Geógrafos Españolesspa
dc.relation.isversionofhttp://www.geofocus.org/index.php/geofocus/article/view/294spa
dc.sourceGeoFocus. Revista Internacional de Ciencia y Tecnología de la Información Geográficspa
dc.subjectFenologíaspa
dc.subjectSeries de tiempospa
dc.subjectNDVIspa
dc.subjectColombiaspa
dc.subjectTiSeGspa
dc.subjectphenologyspa
dc.subjectTime seriesspa
dc.titleFenología de ambientes tropicales en el marco de la teledetecciónspa
dc.typeArticleeng
dc.rights.accessrightsinfo:eu-repo/semantics/openAccess
dc.rights.accessrightsinfo:eu-repo/semantics/openAccess
dc.publisher.programIngeniería Ambientalspa
dc.publisher.facultyFacultad de Ingenieríasspa
dc.creator.affiliationAnaya Acevedo, Jesús A.; Universidad de Medellínspa
dc.creator.affiliationValencia Hernández, Germán M.; Universidad de San Buenaventuraspa
dc.relation.ispartofesGeoFocus. Revista Internacional de Ciencia y Tecnología de la Información Geográfica. No. 13 (2), pp. 195-211spa
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dc.type.driverinfo:eu-repo/semantics/article


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