A new dataset from the Atmospheric Tomography Mission (ATom) provides concentrations of hydrogen oxides measured by the Airborne Tropospheric Hydrogen Oxides Sensor (ATHOS) during airborne campaigns conducted from 2016 - 2018. ATHOS uses laser-induced fluorescence to measure hydroxide (OH) and hydroperoxyl (HO2) simultaneously. The measurements include OH and HO2 mixing ratios in parts-per-trillion-by-volume (pptv), OH interference from chemical removal in pptv, and OH reactivity from discharge flow in hertz.
ATom is a NASA Earth Venture Suborbital-2 mission to study the impact of human-produced air pollution on greenhouse gases and on chemically reactive gases in the atmosphere. See all ORNL DAAC data from ATom.
Data Citation: Brune, W.H., D.O. Miller, and A.B. Thames. 2019. ATom: L2 Measurements from Airborne Tropospheric Hydrogen Oxides Sensor (ATHOS). ORNL DAAC, Oak Ridge, Tennessee, USA. https://doi.org/10.3334/ORNLDAAC/1709
Data Center: ORNL DAAC