Using EO-1 Hyperion to Simulate HyspIRI Products for a Coniferous Forest: The Fraction of PAR Absorbed by Chlorophyll $(\hbox{fAPAR}_{\rm chl})$ and Leaf Water Content (LWC)

摘要: This paper presents development of prototype products for terrestrial ecosystems in preparation the future imaging spectrometer planned Hyperspectral Infrared Imager (HyspIRI) mission. We present a successful demonstration example coniferous forest two product prototypes: fraction photosynthetically active radiation (PAR) absorbed by chlorophyll canopy (fAPARchl) and leaf water content (LWC), HyspIRI implementation at 60-m spatial resolution. For this, we used existing 30-m resolution data available from Earth Observing One (EO-1) Hyperion satellite to simulate level one radiometrically corrected radiance (L1R) images expected visible through shortwave infrared spectrometer. The HyspIRI-like were atmospherically obtain surface reflectance spectrally resampled produce wavelength regions that comparable all seven MODerate Imaging Spectroradiometer (MODIS) land bands. Thus, developed MODIS-like spectral bands scale, which was utilized derive fAPARchl LWC with coupled canopy-leaf radiative transfer model (PROSAIL2) forest. With this paper, provide additional evidence is more realistic describing physiologically than traditional fAPAR parameter whole (fAPARcanopy), thus, it should replace ecosystem process models reduce uncertainties carbon cycle studies.