Solar radiation enters the Earth's atmosphere with a portion being scattered by clouds and aerosols.

Processing, archiving and distributing Earth science data
at the NASA Langley Research Center

DSCOVR_EPIC_L2_AER_01

DSCOVR_EPIC_L2_AER_01

The Aerosol UV product provides aerosol and UV products in three tiers. Tier 1 products include Absorbing Aerosol Index (AAI) and above-cloud-aerosol optical depth (ACAOD). Tier 2 includes a four-parameter retrieval algorithm combining of UV-VIS observations: aerosol optical depth (AOD), angstrom exponent (AE), near UV single scattering albedo (SSA), and effective aerosol layer height (ALH). Cloud masking will be carried out with collocated high resolution LEO observations. Tier 3 contains Experimental Products, including research work on using EPIC’s glint and off-glint observations to characterize spectral aerosol absorption. Tier 3 research includes ways of estimating the height of aerosol layers over the ocean using EPIC’s channels in the Oxygen-A and B bands.

Project Title: 
DSCOVR
Version: 
V1
Level: 
L2
Platform: 
DEEP SPACE CLIMATE OBSERVATORY
Instrument: 
CCD IMAGER
Spatial Coverage: 

(-90, 90)(-180,180)

Spatial Resolution: 

20 km/pixel

Temporal Coverage: 

05/01/2015 - present

Temporal Resolution: 

1 - 2 Hours

File Format: 
HDF

Earthdata Search: Order Data

DOI: 

10.5067/EPIC/DSCOVR/L2_AER.001
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Field Name:               AerosolType
     The aerosol type associated with the ground pixel.
       1 - Smoke
       2 - Dust
       3 - Sulfate

 

Field Name:               FinalAlgorithmFlags
    The final algorithm flag associated with the ground pixel:

    Aerosol extinction Optical Depth (AOD), Single Scattering Albedo (SSA), and
    Aerosol Absorption Optical Depth (AAOD) Retrievals:
       0 - Most reliable
       1 - Less Reliable

 

Field Name:               FinalAerosolSingleScattAlb
     The best aerosol single scattering albedo solution associated with the ground pixel.

 

Field Name:               FinalAerosolOpticalDepth
     The best aerosol optical depth solution associated with the ground pixel.

 

Field Name:               FinalAerosolAbsOpticalDepth
     The best aerosol absorption optical depth solution associated with the ground pixel.

 

Field Name:               Reflectivity
     The Lambert equivalent reflectivity associated with the ground pixel.

 

Field Name:               UVAerosolIndex
     The UV aerosol index associated with the ground pixel.

 

Field Name:               FinalAerosolLayerHeight
     The aerosol layer height (in km) associated with the ground pixel.