Welcome to the Deep Blue aerosol project webpage Deep Blue uses measurements made by satellite instruments orbiting the Earth to determine the amount of aerosols in the atmosphere, and the properties of those aerosols. 'Aerosols' is a catch-all term covering particles suspended in the atmosphere, including but not limited to desert dust, smoke, volcanic ash, industrial smog, and sea spray. Improving our understanding of aerosols is important for reasons related to Earth's climate, human health, and ecology, as well as many others. The Deep Blue algorithms have currently been applied to generate data products from the AVHRR, SeaWiFS, MODIS, and VIIRS spaceborne sensor series. This website is designed to act as a single portal to provide information to both new and experienced data users about our data sets, as well as give an overview of what we do and why we do it to non-specialists. Please use the links across the top of the page to navigate, and feel free to contact us with any questions. Current data set status and availability (updated Nov 01 2017) See also the Data tab: AVHRR: Latest version is v001 (demonstration product for selected periods). SeaWiFS: Latest version is v004, whole mission (1997-2010). MODIS: Latest version is Collection 6.1, whole mission (Terra 2000 onwards, Aqua 2002 onwards), extended in near real time. VIIRS: Latest version is Version 2.0, whole mission (Suomi-NPP 2012 onwards, NOAA-20 2018 onwards), extended in near real time. Above-cloud aerosol data products: Available on a case-study basis by request to Andrew Sayer.