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Agrociencia
versión On-line ISSN 2521-9766versión impresa ISSN 1405-3195
Agrociencia vol.41 no.5 Texcoco jul./ago. 2007
Matemáticas Aplicadas, Estadística y Computación
Diseño de un índice espectral de la vegetación: NDVIcp
1 Hidrociencias. Campus Montecillo. Colegio de Postgraduados. 56230. Montecillo, Estado de México. (pellat@colpos.mx).
2 University of Arizona Dept. of Soil, Water and Environ. Sciences 1200 E. South Campus Dr., Rm. 429 Shantz Bldg. #38 Tucson, AZ 85721-0038.
Hay muchos índices de vegetación (IV) basados en relaciones del espacio espectral del rojo e infrarrojo cercano. En este trabajo se hace una revisión de la estructura de los IV más utilizados, usando una formulación para caracterizar curvas de igual índice de área foliar. Con el fin de resolver las inconsistencias encontradas en los IV, se propone uno nuevo (NDVIcp), basado en la estructura correcta del problema, bajo consideraciones empíricas. El NDVIcp se valida usando datos de experimentos en campo con maíz (Zea mays, L.) y algodón (Gossipyum spp).
Palabras clave: Espacio R-IRC; índices de vegetación; NDVIcp
There are many vegetation indices (VI) based on relationships of the spectral space of the red and near infrared. In this study, the structure of the most widely used VI is examined, using a formulation to characterize curves of equal leaf area index. In order to solve the inconsistencies found in the VI, a new one (NDVIcp) is proposed, based on the correct structure of the problem, under empirical considerations. The NDVIcp is validated using data from field experiments with maize (Zea mays L.) and cotton (Gossipyum spp.).
Key words: Space R-IRC; vegetation indices; NDVIcp
Agradecimientos
Este trabajo se realizó con apoyo del CONACYT, convenio CONACYT-2002-C01-41792, del proyecto Agricultura Asistida por Sensores Remotos, y el de AGROASEMEX, S.A., contrato “Desarrollo de un Seguro Ganadero con Base en Sensores Remotos”, 2004-2005.
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Recibido: Septiembre de 2006; Aprobado: Mayo de 2007