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Differential Absorption Lidar to Measure Sub-Hourly Variation of Tropospheric Ozone Profiles (2009)

Long, Stephanie ; Burris, John F. ; Johnson, Steve ; [et al.]

In: CASI

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Publication Date: 2019-07-12

Description: A tropospheric ozone Differential Absorption Lidar (DIAL) system, developed jointly by the University of Alabama at Huntsville and NASA, is making regular observations of ozone vertical distributions between 1 and 8 km with two receivers under both daytime and nighttime conditions using lasers at 285 and 291 nm. This paper describes the lidar system and analysis technique with some measurement examples. An iterative aerosol correction procedure reduces the retrieval error arising from differential aerosol backscatter in the lower troposphere. Lidar observations with coincident ozonesonde flights demonstrate that the retrieval accuracy ranges from better than 10% below 4 km to better than 20% below 8 km with 750-m vertical resolution and 10-min temporal integration

Keywords: Geophysics

Type: M09-0691

Format: application/pdf

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