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.
A recent AC4-supported study uses laboratory experiments to improve our understanding of how the sun causes nitrogen compounds to chemically transform in the atmosphere, leading to pollution concerns like ozone formation.
Using Airborne and Ground-Based Field Observations to Improve Understanding of Atmospheric Ozone Production
A new AC4-funded study on atmospheric ozone production uses field observations to investigate changes in ozone production on high ozone concentration days during the summer of 2018.
Drought conditions lead to an increase in summertime ozone in the U.S. Southeast but not the West, highlighting the long-term impact of droughts on atmospheric composition.
Stratospheric ozone information is consistently measured to a high degree of accuracy and can now be used for seasonal forecasting in North America which has major applications such as informing public health and agricultural decisions.
MAPP Webinar Series: Modeling the Stratosphere: Ozone, Reanalysis, Predictability, and connections with the Troposphere
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.