...) and calculated OHR (cOHR) based on trace-gas observations at a given location enable critical evaluations of our ability to constrain reactive trace gases. Atmospheric chemistry Air quality KORUS-AQ Modeling OH reactivity Since Kovacs and Brune (2001) first demonstrated ambient observations...

.... Here, we present the Cryosphere and ATmospheric Chemistry initiative (CATCH) which is focused on developing new multidisciplinary research approaches studying interactions of chemistry, biology, and physics within the coupled cryosphere – atmosphere system and their sensitivity to environmental change...

... article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. Atmospheric Chemistry WMO-GAW Atmospheric Trac Gas Montitoring...

... variable and still too short to allow deciphering NMHC trends from the data. Ethane and propane measurements at the PMO were compared with the MOZART-4 atmospheric chemistry and transport model at the appropriate time and location. The model was found to yield good agreement in the description of the lower...