![Airborne ozone lidar on DC-3 aircraft during TexAQS 2000](img/DC3_interior.jpg)
Airborne ozone lidar on DC-3 aircraft during TexAQS 2000.
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Ozone Research
Ozone is toxic to living organisms and is considered a major air
pollutant. Despite considerable regulatory and pollution control efforts
over the past 30 years, high ozone concentrations in urban, suburban, and
rural areas of the United States continue to be a major environmental and
health concern. Ozone in the lower atmosphere is also a greenhouse gas
that contributes to global warming and climate change.
Observations are
needed to improve our understanding of the processes leading to ozone
pollution and to implement more effective control mechanisms. It is
important to monitor ozone concentrations not only at the surface but
also in the lower atmosphere, because vertical and horizontal transport of
ozone can have a major impact on surface ozone concentrations.
Ozone
differential absorption lidar (DIAL) instruments can help provide such
measurements. Ozone DIALs are active remote sensors that are capable of
measuring ozone concentrations in the atmosphere with high temporal and
spatial resolution. ETL operates two ozone DIAL systems, a ground-based
ozone DIAL and an airborne ozone DIAL, which have been deployed to many
field projects in the United States to study ozone pollution.
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