Detection and Evaluation of Spaceborne-Retrieved Tropospheric Ozone Emission Over South Asia

Assessing ozone dynamics during the 2023 summer STAQS field campaign using synergistic observations and model simulations

NASA's Tropospheric Emissions: Monitoring of Pollution (TEMPO) geostationary satellite sensor provides high temporal and spatial resolution measurements critical for monitoring air quality. During the Synergistic TEMPO Air Quality Science (STAQS) component of the 2023 AGES+ campaign, extensive surface, airborne, and...

Ozone downward flux revealed by high-resolution differential absorption lidar over Tibet during stratosphere-troposphere exchange

Three‐Dimensional Distributions and Seasonality of Interannual Trends in the Stratospheric Contribution to Tropospheric Ozone Over China: A 37‐Year Modeling Study

Stratospheric ozone (O3S) is a key natural source of tropospheric ozone, yet its vertical structure, seasonality, and interannual changes remain poorly characterized over China and surrounding regions. Leveraging 37 years of CESM2 simulations, which are rigorously evaluated against multi‐model ensembles and observation...

Ozone downward flux revealed by high-resolution differential absorption lidar over Tibet during stratosphere-troposphere exchange

This study characterizes a prominent ozone intrusion event driven by stratosphere-to-troposphere exchange (STE) that occurred on 18–19 October 2017. The analysis is enabled by high spatiotemporal resolution ozone profile observations from the USTC Ozone Lidar deployed at Yangbajing, Tibet (29° N, 99° E). The high-spa...

Determination of weather-driven trends of atmospheric emissions, concentrations and deposition over Europe during the last decades

Uncertainties in recent tropical stratospheric and tropospheric ozone changes limit the use of observational constraints for assessing future ozone change

A variety of chemical and dynamical processes in the troposphere and stratosphere affect tropical total column ozone (TCO), the net effect of which may cause changes in surface UV radiation and impact human and ecosystem health. We use dynamical linear modeling to estimate changes in tropical TCO and partial column ozo...