A new study supported by AC4 investigates nitrogen cycling between air, plants, and soil, finding variability in cycling rates that is not currently represented in atmospheric chemical transport models.
AC4 funded research uses unprecedented field measurements to gather data on real-world vehicular and non-vehicular volatile organic compound (VOC) emissions to characterize emission rates and oxidative aging of various types of organic pollutants and greenhouse gases in the Greater New York City Metropolitan Area.
The NOAA CPO Modeling, Analysis, Prediction, and Projections (MAPP) program hosted a webinar on the topic of Modeling the Stratosphere: Ozone, Reanalysis, Predictability, and connections with the Troposphere on March 18 from 2-3 p.m. ET. The announcement is provided below; you are invited to remotely join the session.
As another example of NOAA’s ongoing atmospheric measurements providing an early warning system to ensure sustainable development on global scales, a new study co-authored by Stephen Montzka of ESRL and supported by the CPO/AC4 program has found that atmospheric concentrations of chlorinated hydrocarbon (dichloromethane) gas have increased by a factor of 2 since the late 1990s throughout the globe.