Ross J. Salawitch

TL;DR: The vertical column density of ozone observed in October over Antarctica over Antarctica has fallen precipitously over the past 10 yr as mentioned in this paper and the concentration at Halley Bay (76 deg S, 27 deg W), expressed conventionally in Dobson units (DU), has dropped from about 300 DU in 1975 to less than 200 DU in 1984.

TL;DR: The Orbiting Carbon Observatory (OCO) as mentioned in this paper is the first global, space-based measurements of atmospheric carbon dioxide (CO 2 ) with the precision, resolution and coverage needed to characterize CO 2 sources and sinks on regional scales.

TL;DR: In this article, in situ measurements of the concentrations of OH, HO_2, ClO, BrO, NO, and NO_2 demonstrate the predominance of odd-hydrogen and halogen free-radical catalysis in determining the rate of removal of ozone in the lower stratosphere during May 1993.

TL;DR: In this article, a comprehensive literature review and comprising input by both satellite experts and emission inventory specialists, the review identifies several targets that seem promising: large point sources of NOx and SO2, species that are difficult to measure by other means (NH3 and CH4, for example), area sources that cannot easily be quantified by traditional bottom-up methods (such as unconventional oil and gas extraction, shipping, biomass burning, and biogenic sources), and the temporal variation of emissions (seasonal, diurnal, episodic).

TL;DR: In the upper tropospheric air masses sampled, the production rate for ozone (determined from the measured concentrations of HO_2 and NO) is calculated to be about 1 part per billion by volume each day.