Publication Abstracts

Carlson et al. 2020, submitted

Carlson, B., A. Lacis, A. Marshak, W. Su, and G. Russell, 2020: EPIC data derived longitudinal variability of the Earth's planetary albedo: Novel observational constraints from Lagrangian Ll point measurements. Geophys. Res. Lett., submitted.

EPIC is a narrowband imaging camera onboard NASA's DSCOVR spacecraft producing spatially resolved images of the Earth's sunlit hemisphere while orbiting the Lagrangian Ll point some 1.4 to 1.6 million km from Earth in the direction of the Sun. Using MODIS/CERES-based regression relationships, the EPIC narrowband radiances were converted into their broadband equivalents, and by means of CERES angular distribution models, into reflected SW fluxes, as described by Su et al. (2018). Ratioed to the incident solar irradiance, this produces a unique time series of the longitudinal and seasonal variability of the Earth's planetary albedo. Direct comparison to similarly sampled reflected SW fluxes from the GISS Mode1E2 climate model shows significant longitudinal biases in model-generated planetary albedo, with excess reflection over ocean areas and too little reflection from land-mass areas.

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BibTeX Citation

@unpublished{ca07720r,
  author={Carlson, B. and Lacis, A. and Marshak, A. and Su, W. and Russell, G.},
  title={EPIC data derived longitudinal variability of the Earth's planetary albedo: Novel observational constraints from Lagrangian Ll point measurements},
  year={2020},
  journal={Geophys. Res. Lett.},
  note={Manuscript submitted for publication}
}

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RIS Citation

TY  - UNPB
ID  - ca07720r
AU  - Carlson, B.
AU  - Lacis, A.
AU  - Marshak, A.
AU  - Su, W.
AU  - Russell, G.
PY  - 2020
TI  - EPIC data derived longitudinal variability of the Earth's planetary albedo: Novel observational constraints from Lagrangian Ll point measurements
JA  - Geophys. Res. Lett.
ER  -

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