AERDB_D3_VIIRS_NOAA20.002: VIIRS/NOAA-20 Deep Blue Aerosol Optical Depth Daily L3 Global 1.0 Deg Grid

Dataset Availability

2018-02-17T00:00:00Z–2026-09-06T00:00:00Z

Dataset Producer

NASA Atmosphere SIPS / LAADS DAAC

Earth Engine Snippet

ee.ImageCollection("NASA/VIIRS/002/AERDB_D3_VIIRS_NOAA20")

Cadence

1 Day

Tags

aerosol aot atmosphere daily nasa noaa viirs

Description

The Visible Infrared Imaging Radiometer Suite (VIIRS) Deep Blue Level-3 Daily Global 1-Degree Gridded product (AERDB_D3_VIIRS_NOAA20) provides daily global gridded aerosol parameters derived from the NOAA-20 (JPSS-1) VIIRS sensor. Data are generated using the Deep Blue (DB) algorithm over land and the Satellite Aerosol for Land and Ocean (SOAR) algorithm over ocean.

The product includes statistical summaries (mean, minimum, maximum, count, and standard deviation) of aerosol optical thickness (AOT) at 550 nm across land, ocean, and combined land/ocean scenes, along with Angstrom exponent retrievals, fine-mode fraction estimates over ocean, and aerosol type classifications. Data are projected on a regular 1.0 degree equal-angle global grid (EPSG:4326).

Documentation:

• Product User Guide

• Algorithm Theoretical Basis Document (ATBD)

• Deep Blue Project

• LAADS DAAC Product Page

Bands

Bands

Pixel size: 111320 meters (all bands)

Name	Units	Pixel Size	Description
Aerosol_Optical_Thickness_550_Land_Count	count	111320 meters	Count of aerosol optical thickness retrievals at 550 nm over land
Aerosol_Optical_Thickness_550_Land_Maximum	Dimensionless	111320 meters	Maximum aerosol optical thickness at 550 nm over land
Aerosol_Optical_Thickness_550_Land_Mean	Dimensionless	111320 meters	Mean aerosol optical thickness at 550 nm over land
Aerosol_Optical_Thickness_550_Land_Minimum	Dimensionless	111320 meters	Minimum aerosol optical thickness at 550 nm over land
Aerosol_Optical_Thickness_550_Land_Ocean_Count	count	111320 meters	Total count of aerosol optical thickness retrievals at 550 nm over land and ocean
Aerosol_Optical_Thickness_550_Land_Ocean_Maximum	Dimensionless	111320 meters	Maximum aerosol optical thickness at 550 nm over land and ocean
Aerosol_Optical_Thickness_550_Land_Ocean_Mean	Dimensionless	111320 meters	Mean aerosol optical thickness at 550 nm over land and ocean
Aerosol_Optical_Thickness_550_Land_Ocean_Minimum	Dimensionless	111320 meters	Minimum aerosol optical thickness at 550 nm over land and ocean
Aerosol_Optical_Thickness_550_Land_Ocean_Standard_Deviation	Dimensionless	111320 meters	Standard deviation of aerosol optical thickness at 550 nm over land and ocean
Aerosol_Optical_Thickness_550_Land_Standard_Deviation	Dimensionless	111320 meters	Standard deviation of aerosol optical thickness at 550 nm over land
Aerosol_Optical_Thickness_550_Ocean_Count	count	111320 meters	Count of aerosol optical thickness retrievals at 550 nm over ocean
Aerosol_Optical_Thickness_550_Ocean_Maximum	Dimensionless	111320 meters	Maximum aerosol optical thickness at 550 nm over ocean
Aerosol_Optical_Thickness_550_Ocean_Mean	Dimensionless	111320 meters	Mean aerosol optical thickness at 550 nm over ocean
Aerosol_Optical_Thickness_550_Ocean_Minimum	Dimensionless	111320 meters	Minimum aerosol optical thickness at 550 nm over ocean
Aerosol_Optical_Thickness_550_Ocean_Standard_Deviation	Dimensionless	111320 meters	Standard deviation of aerosol optical thickness at 550 nm over ocean
Aerosol_Type_Land_Ocean_Histogram	count	111320 meters	Aerosol type classification histogram over land and ocean
Aerosol_Type_Land_Ocean_Mode		111320 meters	Mode of aerosol type classification over land and ocean
Angstrom_Exponent_Land_Maximum	Dimensionless	111320 meters	Maximum Angstrom exponent over land
Angstrom_Exponent_Land_Mean	Dimensionless	111320 meters	Mean Angstrom exponent over land
Angstrom_Exponent_Land_Minimum	Dimensionless	111320 meters	Minimum Angstrom exponent over land
Angstrom_Exponent_Land_Ocean_Maximum	Dimensionless	111320 meters	Maximum Angstrom exponent over land and ocean
Angstrom_Exponent_Land_Ocean_Mean	Dimensionless	111320 meters	Mean Angstrom exponent over land and ocean
Angstrom_Exponent_Land_Ocean_Minimum	Dimensionless	111320 meters	Minimum Angstrom exponent over land and ocean
Angstrom_Exponent_Land_Ocean_Standard_Deviation	Dimensionless	111320 meters	Standard deviation of Angstrom exponent over land and ocean
Angstrom_Exponent_Land_Standard_Deviation	Dimensionless	111320 meters	Standard deviation of Angstrom exponent over land
Angstrom_Exponent_Ocean_Maximum	Dimensionless	111320 meters	Maximum Angstrom exponent over ocean
Angstrom_Exponent_Ocean_Mean	Dimensionless	111320 meters	Mean Angstrom exponent over ocean
Angstrom_Exponent_Ocean_Minimum	Dimensionless	111320 meters	Minimum Angstrom exponent over ocean
Angstrom_Exponent_Ocean_Standard_Deviation	Dimensionless	111320 meters	Standard deviation of Angstrom exponent over ocean
Fine_Mode_Fraction_550_Ocean_Mean	Dimensionless	111320 meters	Mean fine-mode aerosol volume/optical fraction at 550 nm over ocean
Fine_Mode_Fraction_550_Ocean_Standard_Deviation	Dimensionless	111320 meters	Standard deviation of fine-mode aerosol fraction at 550 nm over ocean
Spectral_Aerosol_Optical_Thickness_Land_Count	count	111320 meters	Count of spectral aerosol optical thickness retrievals over land
Spectral_Aerosol_Optical_Thickness_Land_Mean	Dimensionless	111320 meters	Mean spectral aerosol optical thickness over land
Spectral_Aerosol_Optical_Thickness_Land_Standard_Deviation	Dimensionless	111320 meters	Standard deviation of spectral aerosol optical thickness over land
Spectral_Aerosol_Optical_Thickness_Ocean_Count	count	111320 meters	Count of spectral aerosol optical thickness retrievals over ocean
Spectral_Aerosol_Optical_Thickness_Ocean_Mean	Dimensionless	111320 meters	Mean spectral aerosol optical thickness over ocean
Spectral_Aerosol_Optical_Thickness_Ocean_Standard_Deviation	Dimensionless	111320 meters	Standard deviation of spectral aerosol optical thickness over ocean
Unsuitable_Pixel_Fraction_Land_Ocean	Dimensionless	111320 meters	Fraction of pixels within grid cell deemed unsuitable for aerosol retrieval

Aerosol_Type_Land_Ocean_Mode Class Table

Value	Color	Description
0	None	Dust
1	None	Smoke
2	None	High Altitude Smoke
3	None	Pyrocumulonimbus Clouds
4	None	Non-Smoke Fine Mode
5	None	Mixed
6	None	Background / Maritime
7	None	Fine Dominated

Terms of Use

Terms of Use

This dataset is freely available under the NASA Earth Science Open Data Policy. Users are requested to cite the dataset using the DOI: https://doi.org/10.5067/VIIRS/AERDB_D3_VIIRS_NOAA20.002.

Citations

Citations:

• Hsu, C., et al. (2019). VIIRS/NOAA-20 Deep Blue Aerosol Optical Depth Daily L3 Global 1.0 Deg Grid. NASA Goddard Space Flight Center, doi:10.5067/VIIRS/AERDB_D3_VIIRS_NOAA20.002

DOIs

• https://doi.org/10.5067/VIIRS/AERDB_D3_VIIRS_NOAA20.002

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Code Editor (JavaScript)

var dataset = ee.ImageCollection('NASA/VIIRS/002/AERDB_D3_VIIRS_NOAA20')
                  .filter(ee.Filter.date('2023-08-01', '2023-08-10'));

var aot = dataset.select('Aerosol_Optical_Thickness_550_Land_Ocean_Mean');
var aotVis = {
  min: 0.0,
  max: 1.0,
  palette: ['0000ff', '00ffff', '00ff00', 'ffff00', 'ff0000']
};

Map.setCenter(0.0, 20.0, 2);
Map.addLayer(aot, aotVis, 'Aerosol Optical Thickness (550nm)');

Open in Code Editor

AERDB_D3_VIIRS_NOAA20.002: VIIRS/NOAA-20 Deep Blue Aerosol Optical Depth Daily L3 Global 1.0 Deg Grid

The Visible Infrared Imaging Radiometer Suite (VIIRS) Deep Blue Level-3 Daily Global 1-Degree Gridded product (AERDB_D3_VIIRS_NOAA20) provides daily global gridded aerosol parameters derived from the NOAA-20 (JPSS-1) VIIRS sensor. Data are generated using the Deep Blue (DB) algorithm over land and the Satellite Aerosol for Land and Ocean (SOAR) algorithm …

NASA/VIIRS/002/AERDB_D3_VIIRS_NOAA20, aerosol,aot,atmosphere,daily,nasa,noaa,viirs

2018-02-17T00:00:00Z/2026-09-06T00:00:00Z

-90 -180 90 180

Google Earth Engine

https://developers.google.com/earth-engine/datasets

• https://doi.org/10.5067/VIIRS/AERDB_D3_VIIRS_NOAA20.002
• https://doi.org/10.5067/VIIRS/AERDB_D3_VIIRS_NOAA20.002