The NASA ACTIVATE Mission

The work was funded by ACTIVATE, a NASA Earth Venture Suborbital-3 (EVS-3) investigation funded by NASA's Earth Science Division and managed through the Earth System Sci-ence Pathfinder Program Office. The authors thank pilots and aircraft maintenance personnel of NASA Langley Research Services Directorate for the successful execution of ACTIVATE flights. Uni-versity of Arizona investigators were supported by the National Aeronautics and Space Administra-tion Grant 80NSSC19K0442. C. V. and S. K. thank funding by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation)-TRR 301-Project ID 428312742 and SPP 1294 HALO under Contract VO 1504/7-1. National Institute of Aerospace investigators were supported by NASA Grant 80NSSC19K0389. J. S. S. was supported by an appointment to the NASA Postdoctoral Program at NASA Langley Research Center, administered by Oak Ridge Associated Universities under contract with NASA. The University of Miami acknowledges financial support through NASA Grant 80NS-SC19K0390. Pacific Northwest National Laboratory (PNNL) investigators were supported by the NASA Grants NNL19OB08I and NNL24OB07A. PNNL is operated for DOE by Battelle Memorial Institute under Contract DE-AC05-76RLO1830. GEOS-FP weather and aerosol forecasts were obtained from the Global Modeling and Assimilation Office (GMAO) at the NASA Goddard Space Flight Center. The NASA Center for Climate Simulation (NCCS) provided supercomputing resources for GEOS-FP forecast processing and GEOS-Chem model simulations. We thank Ann Fridlind for helpful comments. The authors acknowledge Andreas Dornbrack and Sonja Gisinger for forecasting support during ACTIVATE. We dedicate this work to the memory of both Claire Robinson and Rodrigo Delgado-Urzua.