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DSCOVR EPIC L2 Atmospheric Correction (MAIAC) Data Release Announcement

DSCOVR EPIC L2 Atmospheric Correction (MAIAC) Data Release Announcement

Friday, June 15, 2018

The NASA Langley Atmospheric Sciences Data Center (ASDC) and NASA GSFC announce the public release of Multi-Angle Implementation of Atmospheric Correction (MAIAC) derived from the Earth Polychromatic Imaging Camera (EPIC) onboard the Deep Space Climate Observatory (DSCOVR). The L2 Atmospheric Correction (MAIAC) product contains atmospherically corrected spectral bidirectional reflectance factors (BRF, or surface reflectance) and bidirectional reflectance distribution function (BRDF) represented by 3 parameters of the Ross-Thick Li-Sparse model. It also provides several atmospheric quantities including cloud mask and aerosol optical depth (AOD) required for atmospheric correction. The parameters are distributed at 10 km sinusoidal grid and 1 to 2 hour temporal frequency. 


The atmospherically corrected surface reflectance and BRDF are fundamental quantities for climate modeling and vegetation studies. They are also important input to the DSCOVR EPIC vegetation VESDR product. Due to high temporal and full disk global coverage, MAIAC EPIC AOD is a useful complementary dataset to MODIS and VIIRS global aerosol products.


Information about the DSCOVR EPIC Atmospheric Correction (MAIAC) products, details about product quality, and mechanisms to access the data can be found under
DSCOVR Data and Information at the ASDC website:


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