About ARL

The Air Resources Laboratory’s (ARL) mission is to improve the ability of the Nation to protect human and ecosystem health and to support a vibrant economy through advanced atmospheric sciences and technologies. ARL’s research focus is on the surface of the earth from a few feet below the soil up to 2-3 miles in the atmosphere (aka the boundary layer), which has a direct impact on people’s health and safety, business, and the environment. ARL studies the physical and chemical processes that occur in the boundary layer, on time scales spanning a few hours to several years.

ARL studies the mixing, exchange, and transformation of energy, moisture, trace gases, and particles, and contributes inputs to meteorological models and forecast operations that are vital in improving weather, climate and air quality forecasts. Primary applications include emergency response, homeland security, air quality, weather forecasts and climate outlooks, and commerce and transportation. ARL’s vision is to effectively protect people, the environment, and commercial activities from atmospheric risks using the best available scientific understanding of boundary layer processes.

ARL News & Updates

ARL Plays Key Role in U.S. Greenhouse Gas Measurement, Monitoring, and Information System

November 29, 2023

As announced by the White House today, NOAA is a key participant in the development of a national system aiming to monitor greenhouse gas emissions. This system will combine capabilities from NOAA and other federal agencies to better understand the emissions and removals of greenhouse gases (GHGs) from national to regional and urban scales as well as from a range of sources. NOAA’s Air Resources Laboratory’s (ARL) contribution is leading the development of an operational measurement and modeling system that quantifies GHGs emission sources in urban areas. 

The Air Resources Car and the UMD Cessna prepare for field experiments on July 28, 2023. Using data from both platforms provides more information on the sources of greenhouse gases and ozone on a regional scale. Image Credit: NOAA ARL.

NNSA conducts experiment to improve U.S. ability to detect foreign nuclear explosions

October 18, 2023

ARL’s Special Operations and Research Division in Nevada participated in an experiment with NNSA to improve the United States’ ability to detect low-yield nuclear explosions around the world. Learn more