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- W4386203886 abstract "<strong class=journal-contentHeaderColor>Abstract.</strong> We describe a new method for estimating the total reflected shortwave energy from the Earth Polychromatic Imaging Camera (EPIC) and compare it with direct measurements from the NIST Advanced Radiometer (NISTAR) instrument (Electrical substitution radiometer) – both are onboard the Lagrange-1 orbiting Deep Space Climate Observatory (DSCOVR). The 6 narrow-band wavelength channels (340 to 780 nm) available from EPIC provide a framework for estimating the integrated spectral energy for each EPIC pixel. The Airborne Visible/Infrared Imaging Spectrometer (AVIRIS) and the SCIAMACHY instrument provide spectral information away from the EPIC wavelengths, particularly for wavelengths longer than 780 nm. The total area-weighted reflected shortwave energy from an entire EPIC image is compared with co-temporal Band B Shortwave reflected energy observed by NISTAR. Our analysis from March to December 2017 shows the two are highly correlated with differences ranging from -10 to 10 Watts m<sup>-2</sup>. The offset bias over the entire period is less than 0.2 Watts m<sup>-2</sup>. We also compare our EPIC energy maps with the Clouds and the Earth’s Radiant Energy System (CERES) Single Scanner Footprint (SSF) Shortwave (SW) reflected energy observed within 3 hours of an EPIC image. Our EPIC-AVIRIS SW estimate is 5–20 % higher near the EPIC image center and 5–20 % lower near the image edges compared with the CERES SSF." @default.
- W4386203886 created "2023-08-28" @default.
- W4386203886 creator A5057569278 @default.
- W4386203886 date "2023-08-27" @default.
- W4386203886 modified "2023-09-29" @default.
- W4386203886 title "Comment on egusphere-2023-638" @default.
- W4386203886 doi "https://doi.org/10.5194/egusphere-2023-638-rc1" @default.
- W4386203886 hasPublicationYear "2023" @default.
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