Title :
Scaling up equivalent water thickness in savanna environments: From local to biome scale, via ground, Hyperion, and MODIS data
Author :
Ferreira, Laerte Guimaraes, Jr. ; Asner, Gregory P. ; Knapp, David ; Davidson, Eric A. ; Bustamante, Mercedes
Author_Institution :
Image Process. & GIS Lab., Fed. Univ. of Goias, Goiania, Brazil
Abstract :
Within the scope of the NASA LCLUC sponsored project ¿Interactions of Edaphic and Land-Use Factors on Water Resources of the Cerrado Region of Brazil ¿, focused on understanding and quantifying the impacts and feedbacks of current and future land cover changes on the Cerrado hydrology, canopy water content based on the Earth Observing-1 (EO-1) Hyperion satellite imagery has been successfully derived for different Cerrado physiognomies. In this paper, we describe an empirical approach for the regional extrapolation of these ground-truthed observations based on the Terra MODIS sensor.
Keywords :
hydrological techniques; hydrology; radiometry; vegetation mapping; water; Brazil; Cerrado Region; Cerrado hydrology; Cerrado physiognomies; Earth Observing-1 Hyperion satellite imagery; NASA LCLUC sponsored project; Terra MODIS sensor observation; biome; biophysical scaling; canopy water content; ground-truthed observations; land cover changes; land-use factors; savanna environments; vegetation index; water resources; water thickness; Ecosystems; Environmental factors; Extrapolation; Hyperspectral sensors; MODIS; NASA; Remote sensing; Rivers; Satellite broadcasting; Water resources; Cerrado; Hyperion EWT; MODIS vegetation index; biophysical scaling;
Conference_Titel :
Geoscience and Remote Sensing Symposium,2009 IEEE International,IGARSS 2009
Conference_Location :
Cape Town
Print_ISBN :
978-1-4244-3394-0
Electronic_ISBN :
978-1-4244-3395-7
DOI :
10.1109/IGARSS.2009.5417314
