Mapping tropospheric ozone profiles from an airborne ultraviolet-visible spectrometer.
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.
Liu
Xiong
X
Atomic and Molecular Physics Division, Harvard-Smithsonian Center for Astrophysics, Cambridge, Massachusetts 02138, USA. xliu@cfa.harvard.edu
Sioris
Christopher E
CE
Chance
Kelly
K
Kurosu
Thomas P
TP
Newchurch
Michael J
MJ
Martin
Randall V
RV
Palmer
Paul I
PI
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*
D010126:Ozone