Science island lidar explores the mysteries of the atmosphere

What are the effects of volcanic eruptions on global climate? How do dust storms affect hefei’s weather? Now, the atmospheric lidar developed by science island can answer these questions convincingly using data.

In recent years, the lidar research team of hefei institute of Chinese academy of sciences has independently developed large lidar with various functions, pushing China’s atmospheric remote sensing detection and research to the international forefront, and the research level has been recognized by countries around the world.

In 1991, researchers from the center of atmospheric optics of anguang institute used the newly developed L625 lidar as the only observation point in Asia to participate in the global tracking and detection of the eruption of mount pinatubo in the Philippines for 10 years, providing valuable data support for the study of the impact of volcanic ash on global climate.

Since 1996, L625 laser radar has conducted long-term systematic detection and study on stratospheric ozone concentration distribution in hefei, and obtained the seasonal variation characteristics of regional ozone concentration. Nor has the sandstorm escaped the radar’s notice.

In 1997, the atmospheric optics center used the self-developed L300 dual-wavelength meter lidar to observe the optical properties of dust in the air for a long time. In addition, the optical properties and structures of cirrus were systematically investigated by L300.

In 2004, the vehicular differential absorption lidar developed by the center for atmospheric optics was used to measure the temporal and spatial distribution characteristics of sulfur dioxide, ozone, nitrogen dioxide concentration and aerosols in the lower troposphere in various regions of China.

After 30 years development, the science island has accumulated very rich experience in design and manufacture lidar system, related research team participated in the international cooperation for many times, has become an international member of atmospheric radiation observation projects, Asian dust laser radar network member unit, the spaceborne lidar global contrast test units, etc.