Aerosol

Overview

The MODIS Aerosol Product monitors the ambient aerosol optical thickness over the oceans globally and over the continents. Furthermore, the aerosol size distribution is derived over the oceans, and the aerosol type is derived over the continents. "Fine" aerosols (anthropogenic/pollution) and "coarse" aerosols (natural particles; e.g., dust) are also derived. Daily Level-2 (MOD_04) data are produced at the spatial resolution of a 10 x 10 1-km (at nadir) pixel array. The aerosol product includes the "deep-blue" algorithm recently developed to get aerosol optical thickness over bright land areas.

Product Information

Product Details


Product Name Terra Prod ID/DAAC Link Aqua Prod ID/DAAC Link
Aerosol 5-Min L2 Swath 10km MOD04_L2 MYD04_L2
Aerosol 5-Min L2 Swath 3km MOD04_3K MYD04_3K

All LAADS Aerosol data products are accessible via the LAADS product search page.

Overview

The Suomi National Polar-orbiting Partnership (SNPP) Visible Infrared Imaging Radiometer Suite (VIIRS) aerosol suite include two product sets: Deep Blue (DB) Aerosol and Dark Target (DT) Aerosol.

The DB Aerosol comprises remotely sensed measurements that help derive aerosols in the atmosphere and their properties. The DB algorithm was first developed to fill in gaps over bright surfaces, such as deserts, in the DT Aerosol Optical Thickness (AOT) algorithm. Such gaps are deemed important given their role as key sources for aerosols like wind-blown mineral dust. The DB algorithm has not only evolved to incorporate darker land surfaces (vegetation) besides the brighter surfaces, its AOT measurements have become more accurate and precise with well-quantified error characteristics. The SNPP VIIRS DB global aerosol suite includes the following: a 6-minute/6-km swath product, a daily/1-degree, and a monthly/1-degree aggregated product.

The DT Aerosol product provides satellite-derived measurements of AOT and their properties over land and ocean, and spectral AOT and their size parameters over oceans, globally. Based on the same MODIS heritage, two distinct DT algorithms help retrieve aerosol information over ocean, and over vegetated/dark-soiled land surfaces. The SNPP VIIRS DT aerosol includes a single L2 6-minute/6-km swath product.

Product Information

Product Details


Product Name VIIRS Prod ID/DAAC Link
Deep Blue Aerosol L2 6-Min Swath 6 km AERDB_L2_VIIRS_SNPP
Deep Blue Level 3 daily aerosol data, 1x1 degree grid AERDB_D3_VIIRS_SNPP
Deep Blue Level 3 monthly aerosol data, 1x1 degree grid AERDB_M3_VIIRS_SNPP
Dark Target Aerosol L2 6-Min Swath 6 km AERDT_L2_VIIRS_SNPP

All LAADS Aerosol data products are accessible via the LAADS product search page.

Last updated: August 6, 2020