The hydroxyl radical, OH, initiates the removal of the majority of trace gases in the
atmosphere, and together with the closely coupled species, the hydroperoxy radical, HO2, is …

The atmospheric chemistry of iodine is important in diverse ways. First, it provides the route
for iodine, which is an essential dietary element for mammals, to be transported from its …

Oxidation of biogenic volatile organic compounds (BVOC) by the nitrate radical (NO 3)
represents one of the important interactions between anthropogenic emissions related to …

The nitrate radical, NO3, is photochemically unstable but is one of the most chemically
important species in the nocturnal atmosphere. It is accompanied by the presence of …

Halogen chemistry is well known for ozone destruction in the stratosphere, however reactive
halogens also play an important role in the chemistry of the troposphere. In the last two …

For several decades, dinitrogen pentoxide (N2O5) has been recognized as an important
reactive intermediate in the atmospheric chemistry of nitrogen oxides and nitrate aerosol …

We demonstrate the first cavity-enhanced optical frequency comb spectroscopy in the mid-
infrared wavelength region and report the sensitive real-time trace detection of hydrogen …

Scientific findings from the last decades have clearly highlighted the need for a more
comprehensive approach to atmospheric change processes. In fact, observation of …

The atmosphere is a complex mixture of interacting trace gases whose atmospheric
residence times vary from less than one second up to many years depending on the …

This article describes a cavity ring-down spectrometer (CaRDS) specifically designed and
constructed for installation on the NOAA WP-3D Orion (P-3) aircraft for sensitive, rapid in situ …