IADIZA   20886
INSTITUTO ARGENTINO DE INVESTIGACIONES DE LAS ZONAS ARIDAS
Unidad Ejecutora - UE
capítulos de libros
Título:
Analysis of vegetation response to climate variability using extended time series of multispectral satellite images
Autor/es:
MENENTI, M.; L. JIA; AZZALI, S.; ROERINK, G.; GONZÁLEZ LOYARTE, M.; LEGUIZAMON, S.; VERHOEF, W.
Libro:
Remote Sensing Optical Observations of Vegetation Properties
Editorial:
Research Signpost
Referencias:
Lugar: Kerala; Año: 2010; p. 131 - 163
Resumen:
Abstract Satellite observations of the terrestrial biosphere cover a period of time sufficiently extended to allow the calculation of reliable climatologies. The latter is particularly relevant for studies of vegetation response to climate variability. This chapter reviews studies done by the authors since the late 80-s on the use of time series analysis techniques to extract concise information from extended time series of large area multispectral satellite data. Two basic methods have been used: the Fast Fourier Transform, especially in the earlier studies, and Harmonic Analysis in more recent work. Since the first studies, work has been relying on the global radiometric data collected by AVHRR and later on MODIS, as well as it has been performed in different continents. The applications supported by published results are: a) the identification and mapping of zones characterized by a similar response of terrestrial vegetation to environmental forcing; b) the determination and characterization of terrestrial vegetation response to climate variability over any period of time covered by available time series of satellite data; c) early warning of anomalies detected during the growth of terrestrial vegetation by using indicators of photosynthetic activity such as NDVI and fAPAR.