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Carbon Cycle & Ecosystems

EO-1 Hyperion imagery is effective for assessing environmental and climatic changes because it provides a long time scale (~ 10 years) of the observations for a wide range of land covers around the globe.

Radiometric stability of remote sensing instruments is essential for quantitative science and applications. This study employs: core Earth observing sites to follow the dynamic changes in ecosystems phenology and spectral properties, and stable calibration sites to assess the long-term radiometric stability of the Hyperion imagery. Since the overpass times of EO-1 at the selected vegetative and cal/val sites differ, the impacts due to different view-geometries are carefully considered.

This study focuses on the analysis of EO-1 Hyperion data at widely used Earth Observing FLUXNET vegetative sites offering forests, grassland and savanna(e. g. Mongu, Zambia; Konza Prarie, KS; Duke, NC - pine and hardwoods) to assess the associated climate, spectral and land cover CO2 dynamics. The results are compared with results obtained at CEOS calibration sites (such as Railroad Valley, Frenchman Flat and Libyan Desert) as reference for the radiometric stability of the EO-1 Hyperion spectra.

The long-term seasonal trends in vegetation reflectance and physiological properties are considered in the contest of climate change, land cover use changes, and vegetation productivity.

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Campbell EO-1 Hyperion Time Series for Vegetative and Calibr...
EO-1 Hyperion Time Series for Vegetative and Calibration Studies
3.1 MB

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Started: Mar 29, 2011

Last Activity: Mar 29, 2011

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