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- Title
Inter-comparison of stratospheric O<sub>3</sub> and NO<sub>2</sub> abundances retrieved from balloon borne direct sun observations and Envisat/SCIAMACHY limb measurements.
- Authors
Butz, A.; Bösch, H.; Camy-Peyret, C.; Chipperfield, M.; Dorf, M.; Dufour, G.; Grunow, K.; Jeseck, P.; Kühl, S.; Payan, S.; Pepin, I.; Pukite, J.; Rozanov, A.; von Savigny, C.; Sioris, C.; Wagner, T.; Weidner, F.; Pfeilsticker, K.
- Abstract
Stratospheric O3 and NO2abundances measured by different remote sensing instruments are intercompared: (1) Line-of-sight absorptions and vertical profiles inferred from solar spectra in the ultra-violet (UV), visible and infrared (IR) wavelength ranges measured by the LPMA/DOAS (Limb Profile Monitor of the Atmosphere/Differential Optical Absorption Spectroscopy) balloon payload during balloon ascent/descent and solar occultation are examined with respect to internal consistency. (2) The balloon borne stratospheric profiles of O3 and NO2 are compared to collocated space-borne skylight limb observations of the Envisat/SCIAMACHY satellite instrument. The trace gas profiles are retrieved from SCIAMACHY spectra using different algorithms developed at the Universities of Bremen and Heidelberg and at the Harvard-Smithsonian Center for Astrophysics. A comparison scheme is used that accounts for the spatial and temporal mismatch as well as differing photochemical conditions between the balloon and satellite borne measurements. It is found that the balloon borne measurements internally agree to within ±10% and ±20% for O3 and NO2, respectively, whereas the agreement with the satellite is ±20% for both gases in the 20 km to 30 km altitude range and in general worse below 20 km.
- Subjects
REMOTE sensing; ULTRAVIOLET radiation; ATMOSPHERE; OCCULTATIONS (Astronomy); ALGORITHMS; ASTROPHYSICS
- Publication
Atmospheric Chemistry & Physics, 2006, Vol 6, Issue 6, p1293
- ISSN
1680-7316
- Publication type
Article
- DOI
10.5194/acp-6-1293-2006