This federal contract award with ID NNX16AF77G was granted by the National Aeronautics and Space Administration (NASA) to the University of Illinois to conduct a multi-mission investigation of the global structure and dynamics of Earth's atomic hydrogen population and its coupling to the mesosphere, thermosphere, ionosphere, and magnetosphere. The $470,186 grant supports research aimed at quantifying the physical mechanisms that control the distribution and dynamical transport of the terrestrial atomic hydrogen population, from its photochemical source in the mesosphere/lower thermosphere to its eventual escape via evaporation or solar wind pickup. The research utilizes data from NASA's TIMED, TWINS, and SOHO missions, as well as supplementary data from the NASA IMAGE and DMSP spacecraft, to yield an unprecedented quantification of the global, three-dimensional, and time-dependent distribution of hydrogen atoms in the upper atmosphere and their escape flux. This contract does not have a set-aside designation.
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