Nickolay Krotkov received a BS from Moscow Institute of Physics and Technology in Physics in 1983, MS (with honor) in Remote Sensing in 1985 and a Ph.D. in oceanography (physics and mathematics) in 1990 from the P.P.Shirshov Institute of Oceanology, Russian Academy of Sciences, where his major research was using polarization properties of light in the oceanic remote sensing. He joined NASA, Goddard Space Flight Center, first with University Space Research Association postdoctoral appointment in 1993 where he has been engaged in development of applications of satellite data, such as ultraviolet (UV) irradiance estimation at the Earth's surface and underwater as well as generation of volcanic eruption data products from the NASA Total Ozone Mapping Spectrometer (TOMS) missions. His main field of research is radiative transfer modeling, satellite and ground based UV data analysis. He is currently a senior research scientist with Goddard Earth Sciences and Technology Center University of Maryland Baltimore County working on new product algorithms for hyperspectral satellite imagers, such as Ozone Monitoring Instrument (OMI) on the NASA EOS/Aura satellite.