Algorithm for the estimation of vertical ozone profiles from the backscattered ultraviolet technique

Bhartia, P. K.; McPeters, R. D.; Mateer, C. L.; Flynn, L. E.; Wellemeyer, C. G.

doi:10.1029/96jd01165

Cited by 238 publications

(181 citation statements)

References 33 publications

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“…One of the first Fourier transform spectrometers, which provides information on tropospheric ozone, is the Interferometric Monitor for Greenhouse Gases (IMG) on the Japanese ADEOS platform [Coheur et al, 2005]. The instrument was operational between 1996. Subsequently, in 2003, the Thermal Infrared Sounder (TES) was launched on the EOS-Aura satellite.…”

Section: Introductionmentioning

confidence: 99%

“…The measurement series was continued by the Solar Backscattered Ultraviolet (SBUV) instrument on Nimbus 7 and the SBUV-2 instruments on the National Oceanic and Atmospheric Administration (NOAA) polar satellites. The SBUV instruments measure the backscattered ultraviolet radiances at 12 wavelengths between 252 and 340 nm, allowing the retrieval of ozone profiles above $25 km [Bhartia et al, 1996]. In 1995, the Global Ozone Monitoring Experiment was launched on board of ESA's ERS-2 satellite, followed by the launch of the Scanning Imaging Absorption Spectrometer for Atmospheric Cartography (SCIAMACHY) on ESA's ENVISAT satellite in 2002.…”

Section: Introductionmentioning

confidence: 99%

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Retrieval of tropospheric ozone: The synergistic use of thermal infrared emission and ultraviolet reflectivity measurements from space

Landgraf¹,

Hasekamp²

2007

J. Geophys. Res.

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[1] We investigate the synergistic use of ultraviolet reflectivity measurements in the spectral range of 290-320 nm and the thermal emission spectra at the 9.6-mm ozone absorption band for the retrieval of vertical distribution of tropospheric ozone from satellite observations. Retrievals of vertical ozone profiles are performed from simulated measurements for different atmospheric conditions. The retrievals show that the use of measurements of both spectral ranges can improve significantly the retrieved ozone in the lowest 5 km of the troposphere. Here largest improvements are found for tropical temperature distributions and for a low thermal contrast in the lower troposphere. So the use of both spectral bands may help to improve the remote sensing of tropospheric ozone from space.Citation: Landgraf, J., and O. P. Hasekamp (2007), Retrieval of tropospheric ozone: The synergistic use of thermal infrared emission and ultraviolet reflectivity measurements from space,

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Retrieval of tropospheric ozone: The synergistic use of thermal infrared emission and ultraviolet reflectivity measurements from space

Landgraf¹,

Hasekamp²

2007

J. Geophys. Res.

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“…In our experiment, the version 8 retrievals from the SBUV/2 on the NOAA-16 satellite are assimilated (see http:// avdc.gsfc.nasa.gov/Data/Browse/sbuv2.html for details). Owing to its nadir viewing geometry and limited frequency range, SBUV/2 has a coarse vertical resolution [Bhartia et al, 1996]. Hence, the retrieved ozone given for 12 layers are converted to partial ozone columns for six layers: 0.1-1 hPa, 1 -2 hPa, 2 -4 hPa, 4 -8 hPa, 8 -16 hPa, and 16 hPa to surface, to avoid vertical error correlations, which have not been modeled in our assimilation.…”

Section: Assimilated Ozone Observationsmentioning

confidence: 99%

Four‐dimensional variational assimilation of ozone profiles from the Microwave Limb Sounder on the Aura satellite

Feng¹,

Brugge²,

Hólm³

et al. 2008

J. Geophys. Res.

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[1] Ozone profiles from the Microwave Limb Sounder (MLS) onboard the Aura satellite of the NASA's Earth Observing System (EOS) were experimentally added to the European Centre for Medium-range Weather Forecasts (ECMWF) four-dimensional variational (4D-var) data assimilation system of version CY30R1, in which total ozone columns from Scanning Imaging Absorption Spectrometer for Atmospheric CHartographY (SCIAMACHY) onboard the Envisat satellite and partial profiles from the Solar Backscatter Ultraviolet (SBUV/2) instrument onboard the NOAA-16 satellite have been operationally assimilated. As shown by results for the autumn of 2005, additional constraints from MLS data significantly improved the agreement of the analyzed ozone fields with independent observations throughout most of the stratosphere, owing to the daily near-global coverage and good vertical resolution of MLS observations. The largest impacts were seen in the middle and lower stratosphere, where model deficiencies could not be effectively corrected by the operational observations without the additional information on the ozone vertical distribution provided by MLS. Even in the upper stratosphere, where ozone concentrations are mainly determined by rapid chemical processes, dense and vertically resolved MLS data helped reduce the biases related to model deficiencies. These improvements resulted in a more realistic and consistent description of spatial and temporal variations in stratospheric ozone, as demonstrated by cases in the dynamically and chemically active regions. However, combined assimilation of the often discrepant ozone observations might lead to underestimation of tropospheric ozone. In addition, model deficiencies induced large biases in the upper stratosphere in the medium-range (5-day) ozone forecasts.

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“…The TOMS TCO retrieval error is 2% and increases with solar zenith angle and the presence of heavy aerosol loading. For SBUV v8 data, four channels of the SBUV instrument (312.60, 317.63, 331.29, and 339.93 nm) are used to derive TCO [Klenk et al, 1982;Bhartia et al, 1996]. The retrieval algorithm also includes molecular, cloud, and aerosol scatterings, tropospheric O 3 contributions, and surface reflectance.…”

Section: 1002/2013jd021065mentioning

confidence: 99%

Quasi‐biennial oscillation and solar cycle influences on winter Arctic total ozone

Tung

2014

JGR Atmospheres

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The total column ozone (TCO) observed from satellites and assimilated in the European Centre for Medium-Range Weather Forecasts since 1979 is used as an atmospheric tracer to study the modulations of the winter Arctic stratosphere by the quasi-biennial oscillation (QBO) and the solar cycle. It is found that both the QBO and solar forcings in low latitudes can perturb the late winter polar vortex, likely via planetary wave divergence, causing an early breakdown of the vortex in the form of sudden stratospheric warming. As a result, TCO within the vortex in late winter can increase by~60 Dobson unit during either a solar maximum or an easterly phase of the QBO, or both, relative to the least perturbed state when the solar cycle is minimum and the QBO is in the westerly phase. In addition, from the solar maximum to the solar minimum during the QBO easterly phase, the change in TCO is found to be statistically insignificant. Therefore, the "reversal" of the Holton-Tan effect, reported in some previous studies using lower stratospheric temperature, is not evident in the TCO behavior of both observation and assimilation.

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Algorithm for the estimation of vertical ozone profiles from the backscattered ultraviolet technique

Cited by 238 publications

References 33 publications

Retrieval of tropospheric ozone: The synergistic use of thermal infrared emission and ultraviolet reflectivity measurements from space

Retrieval of tropospheric ozone: The synergistic use of thermal infrared emission and ultraviolet reflectivity measurements from space

Four‐dimensional variational assimilation of ozone profiles from the Microwave Limb Sounder on the Aura satellite

Quasi‐biennial oscillation and solar cycle influences on winter Arctic total ozone

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