The Sky to Behold: Clearing up the Shenandoah Skyline

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Project Team: Shenandoah Health & Air Quality

Team Location: NASA Langley Research Center ‰ÛÒ Hampton, Virginia

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Ellen Bubak

Amanda Clayton

Doug Gardiner

Nicholas Lenfant

Julie Terhune


Dr. Bruce Doddridge (NASA Langley Research Center)

Dr. Kenton Ross (NASA Langley Research Center)

Monthly total column ozone over Shenandoah National Park and the Chesapeake Bay Airshed, August 2016. Image Credit: Shenandoah Health & Air Quality Team


Gases such as ozone (O3), nitrogen dioxide (NO2), and sulfur dioxide (SO2) have impeded visibility and impacted air health in Shenandoah National Park, one of the primary attractions of Virginia. Air quality is considered one of the park’s fundamental resources and is essential to maintaining its significance as a premier park with world-class views. This project utilized NASA Earth observations, including Aura’s Ozone Monitoring Instrument (OMI), to monitor ozone and nitrogen dioxide that threaten visibility and plant, animal, water, and human health in the park. Trend maps were created to assess spatial and temporal trends in pollutant species over Shenandoah National Park and the surrounding airshed. A methodology was created to help the National Park Service incorporate remote sensing data into its management decisions related to park health and air quality concerns. In situ station data from Big Meadows monitoring station were used to validate the NASA Earth observations. This information will aid in future decisions related to visitor education and ecological management in accordance with mandates from the Clean Air Act, the National Park Service Organic Act of 1916, and the Wilderness Act.

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