INVESTIGADORES
ACEÑOLAZA Pablo Gilberto
congresos y reuniones científicas
Título:
Propuesta metodológica para la cartografía periódica de la cobertura del suelo en Latinoamérica y el Caribe: Estado de situación y Avances.
Autor/es:
BLANCO; LOPEZ SALDAÑA; COLDITZ; HARDTKE; MARI; FISCHER; CARIDE; ACEÑOLAZA P Y OTROS
Lugar:
Mieres del Camino (Principado de Asturias)
Reunión:
Congreso; XIV Congreso de la Asociación Española de Teledetección.; 2011
Institución organizadora:
Asociación Española de Teledetección
Resumen:
Land cover maps at different resolutions and mapping extents contribute to modeling and support decision making processes. Because land cover affects and is affected by climate change, it is listed among the 13 terrestrial essential climate variables. This paper describes the generation of a land covermap for Latin America and the Caribbean (LAC) for the year 2008. It was developed in the framework of the project Latin American Network for Monitoring and Studying of Natural Resources (SERENA), which has been developed within the GOFC-GOLD Latin American network of remote sensing and forest fires (RedLaTIF). The SERENA land cover map for LAC integrates: 1) the local expertise of SERENA network members to generate the training and validation data, 2) a methodology for land cover mapping based on decision trees using MODIS time series, and 3) class membership estimates to account for pixel heterogeneity issues. The discrete SERENA land cover product, derived from class memberships, yields an overall accuracy of 84% and includes an additional layer representing the estimated per-pixel confidence. The study demonstrates in detail the use of classmemberships to better estimate the area of scarce classeswith a scattered spatial distribution. The land covermap is already available as a printed wall map and will be released in digital format in the near future. The SERENA land covermap was produced with a legend and classification strategy similar to that used by the North American Land Change Monitoring System (NALCMS) to generate a land cover map of the North American continent, thatwill allow to combine both maps to generate consistent data across America facilitating continental monitoring and modeling.