DSCOVR EPIC vegetation earth system data record: product analysis and scientific exploration
Files
Accepted manuscript
Date
2018-11-12
DOI
Authors
Knjazihhin, Juri
She, Xiaojun
Mõttus, Matti
Rautiainen, Miina
Pisel, Jan
Version
Accepted manuscript
OA Version
Citation
Juri Knjazihhin, Xiaojun She, Matti Mõttus, Miina Rautiainen, Jan Pisel. 2018. "DSCOVR EPIC Vegetation Earth System Data Record: Product Analysis and Scientific Exploration." Poster presented at the Fall Meeting, AGU, San Francisco, CA on 12 December 2019.
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) and directional area scattering function (DASF). The parameters at 10 km sinusoidal grid and 65 to 110 minute temporal frequency generated from the upstream DSCOVR EPIC BRF product were released on June-07-2018 and are 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 initial quality assessment and obtaining new information on the 3D canopy structure for use in ecological models through novel combinations of the VESDR parameters.