We thank Larry Berg, Lorenzo de la Fuente, Edi Santoso, and Marcus Buker for conducting the radiosonde measurements, and Prof. Roland Stull for making the necessary arrangements for their participation. This research was supported by the Environmental Sciences Division of the U.S. Department of Energy under Contract DE-AC06-76RLO 1830 at Pacific Northwest National Laboratory under the auspices of the Atmospheric Radiation Measurement Program. Pacific Northwest National Laboratory is operated for the U.S. Department of Energy by Battelle Memorial Institute.
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