Stratospheric NO and NO2 abundances from ATMOS Solar‐Occultation Measurements

Newchurch, M. J.; Allen, Mark; Gunson, M. R.; Salawitch, R. J.; Collins, Gary B.; Huston, K. H.; Abbas, M. M.; Abrams, M. C.; Chang, Albert Y.; Fahey, D. W.; Gao, R. S.; Irion, F. W.; Loewenstein, M.; Manney, G. L.; Michelsen, Hope A.; Podolske, J. R.; Rinsland, C. P.; Zander, Rodolphe

doi:10.1029/96gl01196

Cited by 45 publications

(33 citation statements)

References 17 publications

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“…It is important to note that the HALOE retrievals include corrections for diurnal variations along the line of sight, whereas the SAGE III and POAM III retrievals do not. This could be one explanation for the differences below 25 km (see Newchurch et al, 1996).…”

Section: Haloe Sage II Sage Iii and Poam Iiimentioning

confidence: 99%

“…The ACE mission builds on the heritage of a number of previous solar occultation missions, including the Atmospheric Trace MOlecule Spectroscopy (ATMOS) instrument Newchurch et al, 1996;Manney et al, 1999), which flew on four Space Shuttle flights between 1985 and 1994. The three Stratospheric Aerosol and Gas Experiment instruments, SAGE I McCormick, 1979, 1986), SAGE II (Mauldin et al, 1985) and SAGE III (SAGE ATBD Team, 2002) all used ultraviolet-visible (UV-VIS) solar occultation to measure NO 2 , as did the second Polar Ozone and Aerosol Measurement (POAM II) (Glaccum et al, 1996) and POAM III (Lucke et al, 1999;Randall et al, 2002).…”

Section: Introductionmentioning

confidence: 99%

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Validation of NO2 and NO from the Atmospheric Chemistry Experiment (ACE)

et al. 2008

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Abstract. Vertical profiles of NO 2 and NO have been obtained from solar occultation measurements by the Atmospheric Chemistry Experiment (ACE), using an infrared Fourier Transform Spectrometer (ACE-FTS) and (for NO 2 ) an ultraviolet-visible-near-infrared spectrometer, MAESTRO (Measurement of Aerosol Extinction in the Stratosphere and Troposphere Retrieved by Occultation). In this paper, the quality of the ACE-FTS version 2.2 NO 2 and NO and the MAESTRO version 1.2 NO 2 data are assessed using other solar occultation measurements (HALOE, SAGE II, SAGE III, POAM III, SCIAMACHY), stellar occultation measurements (GOMOS), limb measurements (MIPAS, OSIRIS), nadir measurements (SCIA-MACHY), balloon-borne measurements (SPIRALE, SAOZ) and ground-based measurements (UV-VIS, FTIR). Time differences between the comparison measurements were reduced using either a tight coincidence criterion, or where possible, chemical box models. ACE-FTS NO 2 and NO and the MAESTRO NO 2 are generally consistent with the correlative data. The ACE-FTS and MAESTRO NO 2 volume mixing ratio (VMR) profiles agree with the profiles from other satellite data sets to within about 20% between 25 and 40 km, with the exception of MIPAS ESA (for ACE-FTS) and SAGE II (for ACE-FTS (sunrise) and MAESTRO) and suggest a negative bias between 23 and 40 km of about 10%. MAESTRO reports larger VMR values than the ACE-FTS. In comparisons with HALOE, ACE-FTS NO VMRs typically (on average) agree to ±8% from 22 to 64 km and to +10% from 93 to 105 km, with maxima of 21% and 36%, respectively. Partial column comparisons for NO 2 show that there is quite good agreement between the ACE instruments and the FTIRs, with a mean difference of +7.3% for ACE-FTS and +12.8% for MAESTRO.

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Section: Haloe Sage II Sage Iii and Poam Iiimentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Validation of NO2 and NO from the Atmospheric Chemistry Experiment (ACE)

et al. 2008

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“…Fish et al, 1995;Hendrick et al, 2006McLinden et al, 2006Newchurch et al, 1996). The diurnal effect is a result of sunlight passing through a range of SZAs, and hence sampling NO 2 at different points in its diurnal cycle, on its way through the atmosphere to the instrument.…”

Section: Ozonementioning

confidence: 99%

Validation of ACE and OSIRIS ozone and NO2 measurements using ground-based instruments at 80° N

et al. 2012

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Abstract. The Optical Spectrograph and Infra-Red Imager System (OSIRIS) and the Atmospheric Chemistry Experiment (ACE) have been taking measurements from space since 2001 and 2003, respectively. This paper presents intercomparisons between ozone and NO 2 measured by the ACE and OSIRIS satellite instruments and by groundbased instruments at the Polar Environment Atmospheric Research Laboratory (PEARL), which is located at Eureka, Canada (80 • N, 86 • W) and is operated by the Canadian Network for the Detection of Atmospheric Change (CANDAC). The ground-based instruments included in this study are four zenith-sky differential optical absorption spectroscopy (DOAS) instruments, one Bruker Fourier transform infrared spectrometer (FTIR) and four Brewer spectrophotometers.Ozone total columns measured by the DOAS instruments were retrieved using new Network for the Detection of Atmospheric Composition Change (NDACC) guidelines and agree to within 3.2 %. The DOAS ozone columns agree with the Brewer spectrophotometers with mean relative differences that are smaller than 1.5 %. This suggests that for these instruments the new NDACC data guidelines were successful in producing a homogenous and accurate ozone dataset at 80 • N. Satellite 14-52 km ozone and 17-40 km NO 2 partial columns within 500 km of PEARL were calculated for ACE-FTS Version 2.2 (v2.2) plus updates, ACE- C. Adams et al.: Validation of ACE and OSIRISand Optimal Estimation v3.0 NO 2 data products. The new ACE-FTS v3.0 and the validated ACE-FTS v2.2 partial columns are nearly identical, with mean relative differences of 0.0 ± 0.2 % and −0.2 ± 0.1 % for v2.2 minus v3.0 ozone and NO 2 , respectively. Ozone columns were constructed from 14-52 km satellite and 0-14 km ozonesonde partial columns and compared with the ground-based total column measurements. The satellite-plus-sonde measurements agree with the ground-based ozone total columns with mean relative differences of 0.1-7.3 %. For NO 2 , partial columns from 17 km upward were scaled to noon using a photochemical model. Mean relative differences between OSIRIS, ACE-FTS and ground-based NO 2 measurements do not exceed 20 %. ACE-MAESTRO measures more NO 2 than the other instruments, with mean relative differences of 25-52 %. Seasonal variation in the differences between NO 2 partial columns is observed, suggesting that there are systematic errors in the measurements and/or the photochemical model corrections. For ozone spring-time measurements, additional coincidence criteria based on stratospheric temperature and the location of the polar vortex were found to improve agreement between some of the instruments. For ACE-FTS v2.2 minus Bruker FTIR, the 2007-2009 spring-time mean relative difference improved from −5.0 ± 0.4 % to −3.1 ± 0.8 % with the dynamical selection criteria. This was the largest improvement, likely because both instruments measure direct sunlight and therefore have well-characterized lines-of-sight compared with scattered sunlight measurements. For NO 2 , the addition of a ±1 • latitude co...

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“…Below 25 km, vertical VMR profiles uncorrected for this effect can be in error by 20% for NO 2 and more than 100% for NO. 16 Diurnal corrections for ATMOS Version 2 NO and NO 2 are discussed in Ref. 16, and for Version 3 we use a similar procedure described in Ref.…”

Section: E Diurnal Corrections For No and Nomentioning

confidence: 99%

“…16 Diurnal corrections for ATMOS Version 2 NO and NO 2 are discussed in Ref. 16, and for Version 3 we use a similar procedure described in Ref. 17.…”

Section: E Diurnal Corrections For No and Nomentioning

confidence: 99%

Atmospheric Trace Molecule Spectroscopy (ATMOS) Experiment Version 3 data retrievals

Irion¹,

Gunson²,

Toon³

et al. 2002

Appl. Opt.

118

100

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Version 3 of the Atmospheric Trace Molecule Spectroscopy ͑ATMOS͒ experiment data set for some 30 trace and minor gas profiles is available. From the IR solar-absorption spectra measured during four Space Shuttle missions ͑in 1985, 1992, 1993, and 1994͒, profiles from more than 350 occultations were retrieved from the upper troposphere to the lower mesosphere. Previous results were unreliable for tropospheric retrievals, but with a new global-fitting algorithm profiles are reliably returned down to altitudes as low as 6.5 km ͑clouds permitting͒ and include notably improved retrievals of H 2 O, CO, and other species. Results for stratospheric water are more consistent across the ATMOS spectral filters and do not indicate a net consumption of H 2 in the upper stratosphere. A new sulfuric-acid aerosol product is described. An overview of ATMOS Version 3 processing is presented with a discussion of estimated uncertainties. Differences between these Version 3 and previously reported Version 2 ATMOS results are discussed. Retrievals are available at http:͞͞atmos.jpl.nasa.gov͞atmos.

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Stratospheric NO and NO₂ abundances from ATMOS Solar‐Occultation Measurements

Cited by 45 publications

References 17 publications

Validation of NO<sub>2</sub> and NO from the Atmospheric Chemistry Experiment (ACE)

Validation of NO<sub>2</sub> and NO from the Atmospheric Chemistry Experiment (ACE)

Validation of ACE and OSIRIS ozone and NO<sub>2</sub> measurements using ground-based instruments at 80° N

Atmospheric Trace Molecule Spectroscopy (ATMOS) Experiment Version 3 data retrievals

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Stratospheric NO and NO2 abundances from ATMOS Solar‐Occultation Measurements

Cited by 45 publications

References 17 publications

Validation of NO&lt;sub&gt;2&lt;/sub&gt; and NO from the Atmospheric Chemistry Experiment (ACE)

Validation of NO&lt;sub&gt;2&lt;/sub&gt; and NO from the Atmospheric Chemistry Experiment (ACE)

Validation of ACE and OSIRIS ozone and NO&lt;sub&gt;2&lt;/sub&gt; measurements using ground-based instruments at 80° N

Atmospheric Trace Molecule Spectroscopy (ATMOS) Experiment Version 3 data retrievals

Contact Info

Product

Resources

About

Stratospheric NO and NO₂ abundances from ATMOS Solar‐Occultation Measurements

Validation of NO<sub>2</sub> and NO from the Atmospheric Chemistry Experiment (ACE)

Validation of NO<sub>2</sub> and NO from the Atmospheric Chemistry Experiment (ACE)

Validation of ACE and OSIRIS ozone and NO<sub>2</sub> measurements using ground-based instruments at 80° N