Refining Long-Term Data of Ozone in the Stratosphere Using Observations and Modeling 2 December 2022

Refining Long-Term Data of Ozone in the Stratosphere Using Observations and Modeling

A recent study supported by AC4 uses modeling methods to improve long-term observational records, confirming an understood trend of decreasing ozone in the lower stratosphere and challenging previous work showing a positive trend in the upper stratosphere.

New Air Quality and Community Health Research Subcommittee (ACRS) Under the OSTP Co-Chaired by CPO’s Monika Kopacz 1 December 2022

New Air Quality and Community Health Research Subcommittee (ACRS) Under the OSTP Co-Chaired by CPO’s Monika Kopacz

The newly approved Air Quality and Community Health Research Subcommittee (ACRS) under the OSTP will be led jointly by NOAA, EPA and NIEHS and co-chaired by CPO’s Atmospheric Chemistry, Carbon Cycle and Climate (AC4) Program Manager Monika Kopacz.

New Study Discovers a Key Model Improvement to Accurately Represent Atmospheric Aerosols 11 November 2022

New Study Discovers a Key Model Improvement to Accurately Represent Atmospheric Aerosols

An AC4-funded research study finds model bias related to aerosol concentrations compared to global aircraft field data, and corrects the bias using improved precipitation representation.

Using Airborne and Ground-Based Field Observations to Improve Understanding of Atmospheric Ozone Production 28 October 2022

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.

New Aerosol Study Uses FIREX-AQ Data to Link Visual Aerosol Properties to Wildfire Smoke Evolution 28 October 2022

New Aerosol Study Uses FIREX-AQ Data to Link Visual Aerosol Properties to Wildfire Smoke Evolution

Using data from the FIREX-AQ field campaign, a new AC4-funded research study develops a comparison between aerosol concentration and the way aerosol particles scatter light in the atmosphere, offering new insights into wildfire smoke evolution.

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Americans’ health, security and economic wellbeing are tied to climate and weather. Every day, we see communities grappling with environmental challenges due to unusual or extreme events related to climate and weather.