ASDC | DSCOVR_EPIC_L2_MAIAC

DSCOVR Level 2

Entry Title: DSCOVR EPIC Level 2 MAIAC

Entry ID: DSCOVR_EPIC_L2_MAIAC_03

Aerosols Clouds Radiation Budget

Description

DSCOVR_EPIC_L2_MAIAC_02 is the DSCOVR EPIC L2 Multi-Angle Implementation of Atmospheric Correction (MAIAC) Version 02 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 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 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 3 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 02 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 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

View Citations

Resources and Documentation

Earthdata Forum

PROJECT HOME PAGE

https://epic.gsfc.nasa.gov/science/products/vis

VIEW RELATED INFORMATION

DATA CITATION POLICY

How to cite ASDC data

GENERAL DOCUMENTATION

ASDC Data and Information for DSCOVR

From GCMD Science Keywords:

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

Data Distribution

Spatial Information

Spatial Coverage: (-90, 90), (-180, 180)
Spatial Coverage Type: Not provided
Horizontal Resolution Range: 10 km - < 50 km or approximately .09 degree - < .5 degree
Coordinate System: Cartesian
Granule Spatial Representation: Cartesian

Locations

CONTINENT AFRICA ANTARCTICA ASIA AUSTRALIA/NEW ZEALAND EUROPE NORTH AMERICA SOUTH AMERICA ARCTIC EASTERN HEMISPHERE EQUATORIAL EURASIA GLOBAL GLOBAL LAND GLOBAL OCEAN NORTHERN HEMISPHERE MID-LATITUDE OCEANIA POLAR SAHEL SOUTHERN HEMISPHERE WESTERN HEMISPHERE TROPICS OCEAN ARCTIC OCEAN ATLANTIC OCEAN INDIAN OCEAN PACIFIC OCEAN SOUTHERN OCEAN TROPOSPHERE LAND SURFACE SEA SURFACE STRATOSPHERE

Temporal Information

Temporal Coverage: 2015-06-13 - Present
Temporal Resolution: 12-23 per day

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 2022-08-29