At the beginning of a new millennium, NASA has an ambitious, exciting vision for its space program. Earth Observing-1 (EO-1) is the first satellite in NASA's New Millennium Program Earth Observing series. The EO mission will develop and validate instruments and technologies for space-based Earth observation with unique spatial, spectral and temporal characteristics not previously available. Three revolutionary land imaging instruments: Advanced Land Imager (ALI), Atmospheric Corrector (AC), and Hyperspectral Imager (Hyperion), flown on EO-1 satellite will collect multispectral and hyperspectral scenes over the course of its mission in coordinate with the ETM+ on Landsat 7. During the period of 2000-2002, we joined the scientific validation team of EO-1 data and the objectives we proposed are: (1) Examine the capability of Hyperion data in forest species recognition and conduct species recognition using ALI, Hyperion and Landsat TM data using discriminant analysis, spectral similarity analysis and neural network algorithms; (2) develop algorithms to estimate crown closure from radiometrically corrected ALI data and Hyperion imaging spectrometer data; and (3) develop models to estimate LAI for Argentina study site and Blodgett site, California from radiaometrically corrected ALI and Hyperion data. Specifically, we developed a simple atmospheric correction method, which may combine modeling method with ground spectral measurement to retrieve surface reflectance spectra from three sensors' data; (2) developed an LAI mapping procedure with the remote sensing data; and (3) developed a method which is used for identifying coniferous species with multi/hyperspectral data ALI and Hyperion EO-1 data.
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