Retrieval of stratospheric O3 and NO2 profiles from Odin Optical Spectrograph and Infrared Imager System (OSIRIS) limb‐scattered sunlight measurements

Haley, C. S.; Brohede, Samuel; Sioris, C. E.; Griffioen, E.; Murtagh, Donal; McDade, I. C.; Eriksson, Patrick; Llewellyn, E. J.; Bazureau, Ariane; Goutail, Florence

doi:10.1029/2004jd004588

Cited by 81 publications

(150 citation statements)

References 76 publications

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“…Accuracy is evaluated by adding a systematic error of 1.5% (uncertainty from the ozone absorption cross-sections) to the precision values. The SAOZ ozone profiles have been compared to a number of satellite and sonde observations and were found to be very consistent with the most accurate data available (Lumpe et al, 2003;Haley et al, 2004;Borchi and Pommereau, 2007). The three SAOZ flights used in this study were part of the African Monsoon Multidisciplinary Analysis (AMMA) balloon campaign (Redelsperger et al, 2006) maximum values between −40 and −60% at 16 km for all SAOZ profiles.…”

Section: Saoz-balloon Measurements In the Tropicsmentioning

confidence: 57%

Validation of ozone measurements from the Atmospheric Chemistry Experiment (ACE)

Dupuy¹,

Walker²,

Kar³

et al. 2009

Atmos. Chem. Phys.

144

126

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Abstract. This paper presents extensive bias determination analyses of ozone observations from the Atmospheric Chemistry Experiment (ACE) satellite instruments: the ACE Fourier Transform Spectrometer (ACE-FTS) and the Measurement of Aerosol Extinction in the Stratosphere and Troposphere Retrieved by Occultation (ACE-MAESTRO) instrument. Here we compare the latest ozone data products from ACE-FTS and ACE-MAESTRO with coincident observations from nearly 20 satellite-borne, airborne, balloonborne and ground-based instruments, by analysing volume mixing ratio profiles and partial column densities. The ACE-FTS version 2.2 Ozone Update product reports more ozone than most correlative measurements from the upper troposphere to the lower mesosphere. At altitude levels from 16 to 44 km, the average values of the mean relative differences are nearly all within +1 to +8%. At higher altitudes (45-60 km), the ACE-FTS ozone amounts are significantly larger than those of the comparison instruments, with mean relative differences of up to +40% (about +20% on average). For the ACE-MAESTRO version 1.2 ozone data product, mean relative differences are within ±10% (average values within ±6%) between 18 and 40 km for both the sunrise and sunset measurements. At higher altitudes (∼35-55 km), systematic biases of opposite sign are found between the ACE-MAESTRO sunrise and sunset observations. While ozone amounts derived from the ACE-MAESTRO sunrise occultation data are often smaller than the coincident observations (with mean relative differences down to −10%), the sunset occultation profiles for ACE-MAESTRO show results that are qualitatively similar to ACE-FTS, indicating a large positive bias (mean relative differences within +10 to +30%) in the 45-55 km altitude range. In contrast, there is no significant systematic difference in bias found for the ACE-FTS sunrise and sunset measurements.

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Section: Saoz-balloon Measurements In the Tropicsmentioning

confidence: 57%

Validation of ozone measurements from the Atmospheric Chemistry Experiment (ACE)

Dupuy¹,

Walker²,

Kar³

et al. 2009

Atmos. Chem. Phys.

144

126

View full text Add to dashboard Cite

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“…[37] A thorough description of the OSIRIS NO 2 retrievals can be found in the work of Haley et al [2004]. Only a simplified description is given here.…”

Section: Osiris No 2 Retrievalsmentioning

confidence: 99%

“…Haley et al [2004] studied these errors by treating them as independent error sources, each with an assumed uncertainty. The errors were estimated by performing perturbations of one standard deviation to a number of forward model parameters about a midlatitude atmosphere with surface albedo 0.3.…”

Section: Error Budgetmentioning

confidence: 99%

“…[4] Haley et al [2004] describe how NO 2 and O 3 can be successfully retrieved from OSIRIS limb-scatter measurements in the stratosphere using a combination of Differential Optical Absorption Spectroscopy (DOAS) [Platt, 1994] and Optimal Estimation (OE) [Rodgers, 2000]. OSIRIS provides a unique data set of NO 2 with a slightly more than hemispheric coverage and a vertical resolution of about 2 km between 15 and 40 km.…”

Section: Introductionmentioning

confidence: 99%

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Validation of Odin/OSIRIS stratospheric NO₂ profiles

Brohede¹,

Haley²,

McLinden³

et al. 2007

J. Geophys. Res.

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[1] This paper presents the validation study of stratospheric NO 2 profiles retrieved from Odin/OSIRIS measurements of limb-scattered sunlight (version 2.4). The Optical Spectrograph and Infrared Imager System (OSIRIS) NO 2 data set is compared to coincident solar occultation measurements by the Halogen Occultation Experiment (HALOE), Stratospheric Aerosol and Gas Experiment (SAGE) II, SAGE III, and Polar Ozone and Aerosol Measurement (POAM) III during the 2002-2004 period. Comparisons with seven Systeme d'Analyse par Observation Zenithal (SAOZ) balloon measurements are also presented. All comparisons show good agreement, with differences, both random and systematic, of less than 20% between 25 km and 35 km. Inconsistencies with SAGE III below 25 km are found to be caused primarily by diurnal effects from varying NO 2 concentrations along the SAGE III line-of-sight. On the basis of the differences, the OSIRIS random uncertainty is estimated to be 16% between 15 km and 25 km, 6% between 25 km and 35 km, and 9% between 35 km and 40 km. The estimated systematic uncertainty is about 22% between 15 and 25 km, 11-21% between 25 km and 35 km, and 11-31% between 35 km and 40 km. The uncertainties for AM (sunrise) profiles are generally largest and systematic deviations are found to be larger at equatorial latitudes. The results of this validation study show that the OSIRIS NO 2 profiles are well behaved, with reasonable uncertainty estimates between 15 km and 40 km. This unique NO 2 data set, with more than hemispheric coverage and high vertical resolution will be of particular interest for studies of nitrogen chemistry in the middle atmosphere, which is closely linked to ozone depletion.

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“…These numbers represent the change in SZA between the tangent point and one scale height above the tangent point (along the LOS). The spectral fitting routine of Haley et al (2004) was used to derive apparent slant column densities (SCDs) of NO 3 between 10 and 45 km. The SCD represents the number density weighted by the pathlength of the scattered sunlight through the atmosphere.…”

Section: Osiris Observations Of No 3 Apparent Slant Column Densitiesmentioning

confidence: 99%

Odin/OSIRIS observations of stratospheric NO3 through sunrise and sunset

McLinden

Haley

2008

Atmos. Chem. Phys.

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Abstract. The nitrate radical (NO 3 ) has been detected in visible limb-scattered spectra measured by the Optical Spectrograph and InfraRed Imager System (OSIRIS) onboard the Odin satellite when observing at large solar zenith angles (91-97 • ). Apparent slant column densities of NO 3 at tangent heights between 10 and 45 km are derived via spectral fitting in the 610-680 nm window. Using observations from multiple scans spanning solar zenith angles of 91-97 • , the rapid evolution of NO 3 through sunrise and sunset can be traced. Slant column densities are found to be generally consistent with those simulated using a radiative transfer model with coupled photochemistry. In addition, a strong dependence of NO 3 with temperature is observed. These results indicate that our current knowledge of NO 3 photochemistry is generally consistent with OSIRIS observations to within the limitations of the radiative transfer modeling. Furthermore, they reveal that OSIRIS possesses signal-to-noise sufficient to make useful measurements of scattered sunlight out to solar zenith angles of 91-97 • and suggest the possibility of retrieving profile information for NO 3 and other species at large solar zenith angles.

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Retrieval of stratospheric O₃ and NO₂ profiles from Odin Optical Spectrograph and Infrared Imager System (OSIRIS) limb‐scattered sunlight measurements

Cited by 81 publications

References 76 publications

Validation of ozone measurements from the Atmospheric Chemistry Experiment (ACE)

Validation of ozone measurements from the Atmospheric Chemistry Experiment (ACE)

Validation of Odin/OSIRIS stratospheric NO₂ profiles

Odin/OSIRIS observations of stratospheric NO<sub>3</sub> through sunrise and sunset

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Retrieval of stratospheric O3 and NO2 profiles from Odin Optical Spectrograph and Infrared Imager System (OSIRIS) limb‐scattered sunlight measurements

Cited by 81 publications

References 76 publications

Validation of ozone measurements from the Atmospheric Chemistry Experiment (ACE)

Validation of ozone measurements from the Atmospheric Chemistry Experiment (ACE)

Validation of Odin/OSIRIS stratospheric NO2 profiles

Odin/OSIRIS observations of stratospheric NO&lt;sub&gt;3&lt;/sub&gt; through sunrise and sunset

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Retrieval of stratospheric O₃ and NO₂ profiles from Odin Optical Spectrograph and Infrared Imager System (OSIRIS) limb‐scattered sunlight measurements

Validation of Odin/OSIRIS stratospheric NO₂ profiles

Odin/OSIRIS observations of stratospheric NO<sub>3</sub> through sunrise and sunset