Andrew Sayer obtained his Ph.D. at the University of Oxford, UK. Following his doctoral thesis, "Aerosol remote sensing using AATSR", he worked as a postdoc in aerosol and cloud remote sensing jointly at Oxford and the Rutherford Appleton Laboratory. In September 2010, Dr. Sayer joined Christina Hsu's group in the Climate and Radiation Laboratory at GSFC to work on aerosol remote sensing as part of the Deep Blue aerosol project. He joined GESTAR in May 2011, and has been in Dr. Jeremy Werdell's group in the Ocean Ecology Laboratory, working on the forthcoming NASA PACE mission, since summer 2018.

A list of publications, citation metrics, reviews, and editorial board memberships can be found on his Publons profile page.