A149-0012
Vegetation Earth System Data Record from DSCOVR EPIC Observation: Product Status

Monday, 14 December 2020
Poster
Yuri Knyazikhin1, Yuanheng Sun1,2, Xiaojun She1, Xiangnan Ni1, Matti Mottus3, Miina Rautiainen4, Jan Pisek5 and Ranga B Myneni1, (1)Boston University, Earth and Environment, Boston, MA, United States, (2)Peking University, Earth and Space Science, Beijing, China, (3)VTT Technical Research Centre of Finland, Espoo, Finland, (4)Aalto University School of Engineering / Aalto University School of Electrical Engineering, Department of Built Environment / Department of Electronics and Nanoengineering, Aalto, Finland, (5)University of Tartu, Tartu Observatory, Tartu, Estonia
Abstract:
The NASA's Earth Polychromatic Imaging Camera (EPIC) onboard NOAA's Deep Space Climate Observatory (DSCOVR) mission was launched on February 11, 2015 to the Sun-Earth Lagrangian L1 point where it began to collect radiance data of the entire sunlit Earth every 65 to 110 min in June 2015. It provides imageries in near backscattering directions at ten ultraviolet to near infrared narrow spectral bands. The DSCOVR EPIC science product suite includes vegetation Earth System Data Record (VESDR) that provides leaf area index (LAI) and diurnal courses of normalized difference vegetation index (NDVI), sunlit LAI (SLAI), fraction of incident photosynthetically active radiation (FPAR) directional area scattering function (DASF) as well as recently added Earth Reflector Type Index (ERTI) and Canopy Scattering Coefficient (CSC). The parameters at 10 km regional sinusoidal grids and 65 to 110 minute temporal frequency generated from the upstream DSCOVR EPIC BRF product will be available from the NASA Langley Atmospheric Science Data Center. This poster provides an overview of the EPIC VESDR research. This includes a description of the algorithm and its performance, details of the product, its quality assessment and scientific exploration.
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