title: Mapping tropospheric ozone profiles from an airborne ultraviolet-visible spectrometer.
abstract: We present a novel technique for retrieving ozone (O3) profiles and especially tropospheric O3 from airborne UV/visible spectrometer measurements. This technique utilizes radiance spectra from one down-looking and two up-looking (85 degrees and 75 degrees) directions, taking advantage of the O3 absorption structure in the Huggins (300-340-nm) and Chappuis (530-650-nm) bands. This technique is especially sensitive to tropospheric O3 below and < or =8 km above the aircraft with a vertical resolution of 2-6 km and is sensitive to lower and middle stratospheric O3 with a vertical resolution of 8-15 km. It can measure tropospheric O3 at spatial resolutions of 2 km x 2 km or higher and is therefore well suited for regional air-quality studies and validation of satellite measurements.
authors.affiliation: Atomic and Molecular Physics Division, Harvard-Smithsonian Center for Astrophysics, Cambridge, Massachusetts 02138, USA. xliu@cfa.harvard.edu
authors.forename: Xiong
authors.initials: X
authors.lastname: Liu
authors.forename: Christopher E
authors.initials: CE
authors.lastname: Sioris
authors.forename: Kelly
authors.initials: K
authors.lastname: Chance
authors.forename: Thomas P
authors.initials: TP
authors.lastname: Kurosu
authors.forename: Michael J
authors.initials: MJ
authors.lastname: Newchurch
authors.forename: Randall V
authors.initials: RV
authors.lastname: Martin
authors.forename: Paul I
authors.initials: PI
authors.lastname: Palmer
mesh_terms: D000401:Aircraft; D000465:Algorithms; D001272:Atmosphere / Q000032:analysis*; D004784:Environmental Monitoring / Q000379:methods*; D040362:Geographic Information Systems; D010126:Ozone / Q000032:analysis*; D013056:Spectrophotometry, Ultraviolet / Q000379:methods*
chemical_list: D010126:Ozone