ASDC | DSCOVR_EPIC_L2_MAIAC

DSCOVR Level 2

Entry Title: DSCOVR EPIC Level 3 MAIAC

Entry ID: DSCOVR_EPIC_L2_MAIAC_03

Aerosols Clouds Radiation Budget

Description

DSCOVR_EPIC_L2_MAIAC_03 is the DSCOVR EPIC L2 Multi-Angle Implementation of Atmospheric Correction (MAIAC) Version 03 data product. Data collection for this product is ongoing.

Level 2 Multi-Angle Implementation of Atmospheric Correction (MAIAC) provides an interdisciplinary suite of products for the Deep Space Climate Observatory (DSCOVR) Earth Polychromatic Imaging Camera (EPIC). The current version 2 reports the following products:

a) Atmosphere: cloud mask, global aerosol optical depth at 443nm and 551nm, fine mode fraction (over the ocean), and spectral aerosol absorption for detected biomass burning or mineral dust aerosols. The absorption information includes single scattering albedo at 443nm, imaginary refractive index at 680nm, and Absorption Angstrom Exponent (AAE) characterizing spectral increase of imaginary refractive index at Vis-UV wavelengths. The absorption information is provided for two effective aerosol layer heights of 1km and 4km, generally representing the boundary layer and transport mode.

b) Land: atmospherically corrected spectral bidirectional reflectance factors (BRF) along with Lambertian surface reflectance and bidirectional reflectance distribution function (BRDF) for the backscattering view geometries of EPIC. The BRDF is represented by three parameters of the Ross-Thick Li-Sparse model.

c) Ocean: Water leaving reflectance (non-dimensional) at Ultraviolet-Visible (UV-Vis) bands.

The parameters are distributed at 10 km rotated sinusoidal grid and 1 to 2-hour temporal frequency. MAIAC version 03 also provides gap-filled global composite products for Normalized Difference Vegetation Index (NDVI) over land and water, leaving reflectance in 5 UV-Vis bands over the global ocean. The composite products represent a weighted running average where the weight of the latest observation is maximized towards the local noon and low aerosol conditions.

DOI

10.5067/EPIC/DSCOVR/MAIAC_2.03

Citation Styles for this Dataset

Resources and Documentation

Earthdata Forum

PROJECT HOME PAGE

EPIC Project Home Page

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GENERAL DOCUMENTATION

ASDC Data and Information for DSCOVR

From GCMD Science Keywords:

CLOUDS
AEROSOLS
REFLECTANCE
ATMOSPHERIC PRESSURE
OCEAN OPTICS
DUST/ASH/SMOKE
WATER-LEAVING RADIANCE
ANISOTROPY
AEROSOL PARTICLE PROPERTIES
SURFACE RADIATIVE PROPERTIES
AEROSOL OPTICAL DEPTH/THICKNESS
ATMOSPHERIC CHEMISTRY
ANGSTROM EXPONENT > AEROSOL OPTICAL DEPTH/THICKNESS

Data Distribution

Spatial Information

Spatial Coverage: (S: -90, N: 90), (W: -180, E: 180)
Spatial Coverage Type: Not provided
Coordinate System: Cartesian
Granule Spatial Representation: Cartesian

Locations

GLOBAL

Temporal Information

Temporal Coverage: 2015-06-13 - Present

Platforms

Solar/Space Observation Satellites

DSCOVR

Deep Space Climate Observatory

EPIC

Earth Polychromatic Imaging Camera

Metadata Dates

Created on 2021-11-03

Last updated on 2023-08-16