MODIS Collection 5 Deep Blue Aerosol Product

World Meteorological Organization

The MODIS Aerosol Product monitors the ambient aerosol optical thickness over the oceans globally and over a portion of the continents. The additional Deep Blue product fills in some of the missing continental areas in Collection 5.1. Further, the aerosol size distribution is derived over the oceans. Daily Level 2 data are produced at the spatial resolution of a 10x10 km2 (at nadir)-pixel array. There are two MODIS Aerosol data product files: MOD04_L2, containing data collected from the Terra platform; and MYD04_L2, containing data collected from the Aqua platform.

Satellite EOS Terra / EOS Aqua
Instrument(s) MODIS
Contact details Christina.Hsu[at]
Parameter(s) AOD, Angstrom exponent, Single Scattering Albedo
Aerosol algorithm MOD04_L2
Cloud screening

Spatial variance method based upon 412 nm band

Aerosol model A suite of aerosol library for dust, smoke, and continent.aerosols
Retrieval assumptions bimodal aerosol model from one fine mode and one coarse mode
Retrieval limitations retrieval over bright surfaces only
Spatial, temporal coverage 2000-present (Terra), 2004-present (Aqua) / NRT, global
Spatial, temporal resolution 1km / 2330km swath / 16 days repeat cycle
Operations status operational / reprocessing
Validation status 2000-present online access to validation results
Quality control pixel-wise quality flag
last algorithm version collection 5 (04/2006) / collection 5.1 (05/2008)
last validation 2000-present


Algorithm description Product format description
Version explanation Validation summary


Product data access
Image / quicklook data access