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Differential Absorption Lidar to Measure Subhourly Variation of Tropospheric Ozone Profiles

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5 Author(s)
Shi Kuang ; Atmos. Sci. Dept., Univ. of Alabama in Huntsville, Huntsville, AL, USA ; Burris, J.F. ; Newchurch, M.J. ; Johnson, S.
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A tropospheric ozone Differential Absorption Lidar system, developed jointly by The University of Alabama in Huntsville and the National Aeronautics and Space Administration, 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.

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Geoscience and Remote Sensing, IEEE Transactions on  (Volume:49 ,  Issue: 1 )