Title :
Downscaling of coarse resolution LAI products to achieve both high spatial and temporal resolution for regions of interest
Author :
Rasmus Houborg;Matthew F. McCabe;Feng Gao
Author_Institution :
King Abdullah University of Science and Technology (KAUST), Kingdom of Saudi Arabia
fDate :
7/1/2015 12:00:00 AM
Abstract :
This paper presents a flexible tool for spatio-temporal enhancement of coarse resolution leaf area index (LAI) products, which is readily adaptable to different land cover types, landscape heterogeneities and cloud cover conditions. The framework integrates a rule-based regression tree approach for estimating Landsat-scale LAI from existing 1 km resolution LAI products, and the Spatial and Temporal Adaptive Reflectance Fusion Model (STARFM) to intelligently interpolate the downscaled LAI between Landsat acquisitions. Comparisons against in-situ records of LAI measured over corn and soybean highlights its utility for resolving sub-field LAI dynamics occurring over a range of plant development stages.
Keywords :
"Remote sensing","Satellites","Earth","Spatial resolution","MODIS","Reflectivity","Indexes"
Conference_Titel :
Geoscience and Remote Sensing Symposium (IGARSS), 2015 IEEE International
Electronic_ISBN :
2153-7003
DOI :
10.1109/IGARSS.2015.7326528