Characterization of stratospheric aerosol distribution for volcanic and non-volcanic aerosols observed through 16 years of SAGE II data (1984–2000)

Bingen, Christine; Fussen, D.; Vanhellemont, F.

doi:10.1029/139gm06

Cited by 5 publications

(4 citation statements)

References 43 publications

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“…Therefore small changes over this period in background stratospheric sulfate aerosols is expected. This is in agreement with measurements, where a small or no change was observed during the last 15–20 yr in the background stratospheric sulfate aerosols (Bingen et al 2004).…”

Section: Discussionsupporting

confidence: 93%

The radiative effect of the anthropogenic influence on the stratospheric sulfate aerosol layer

Myhre¹,

Berglen²,

Myhre³

et al. 2004

Tellus B

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Stratospheric sulfate aerosols have a cooling effect on the Earth's surface. Sulfur aerosols from large volcanic eruptions are often the dominant source, while non‐volcanic background stratospheric sulfate aerosols are supposed to mainly originate from carbonyl sulfide (OCS). Several recent studies indicate, however, that this latter source is too small to account for the observed background stratospheric aerosol concentration. Based on model calculations we suggest that most of the lower stratospheric sulfate aerosol concentration is of anthropogenic origin. We estimate a global mean radiative forcing due to the anthropogenic influence on the stratospheric aerosol layer of −0.05 W m−2. This represents a new climate forcing mechanism and emphasizes anthropogenic sulfur emission as an important cooling mechanism.

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Section: Discussionsupporting

confidence: 93%

The radiative effect of the anthropogenic influence on the stratospheric sulfate aerosol layer

Myhre¹,

Berglen²,

Myhre³

et al. 2004

Tellus B

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“…[25] The validation by means of both remote and in situ measurements has been presented elsewhere [Bingen et al, 2002[Bingen et al, , 2003[Bingen et al, , 2004b. Concerning remote sounding measurements, we found a quite good agreement with results obtained from the ORA experiment [Fussen et al, 2001].…”

Section: Comparison With Other Data Setssupporting

confidence: 75%

“…It showed, for the considered particle class with r ! 0.25 mm, a good agreement between both time series, included during the periods of very low volcanism [Bingen et al, 2003].…”

Section: D06202mentioning

confidence: 76%

A global climatology of stratospheric aerosol size distribution parameters derived from SAGE II data over the period 1984–2000: 2. Reference data

2004

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[1] In a companion paper, a global climatology was presented for different parameters characterizing the size distribution of stratospheric aerosols; the particle number density, median radius, and mode width of the particle size distribution were assumed to be lognormal. Those aerosol parameters were retrieved by optical inversion of Stratospheric Aerosol and Gas Experiment (SAGE) II aerosol extinction profiles. The data cover the time period 1984-2000. In this second part of the study, we present the climatology in a more quantitative way, and starting from the case of the Mount Pinatubo eruption in June 1991, we try to derive reference data for the three considered aerosol parameters. Using four time intervals representative of the different phases of the aerosol relaxation after a major eruption, we investigate the data set spanning the period June 1991 to mid-1999 and present a spatiotemporal description of the aerosol distribution for the whole relaxation period. The range of the data dispersion due to seasonal effects and random variations is also estimated. Finally, a study of the error on the three parameters is presented for the whole data set, as well as an overview of our validation efforts.

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“…In the stratosphere, aerosols influence ozone chemistry, especially the ozone depletion though polar stratospheric clouds formation [Solomon, 1999]. Studies of stratospheric aerosols have contributed to better characterize their general distribution and the content variability during volcanic and post volcanic conditions [e.g., Hitchman et al, 1994;Deshler et al, 2003;Bingen et al, 2003;Hofmann et al, 2009].…”

Section: Introductionmentioning

confidence: 99%

In situ detection of aerosol layers in the middle stratosphere

Renard

Berthet

Salazar

et al. 2010

Geophysical Research Letters

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[1] We present here 14 new flights of the aerosol counter STAC, performed in the 2008-2010 period under 3 different geophysical conditions: equator, summer Arctic, and spring Arctic. Measurements were conducted during the balloon ascent, at float altitude, and during the balloon descent. The float altitude was between 14 and 2 hPa (29-42 km), depending on the flights. Aerosol enhancements were detected for altitude levels above 40 hPa, with a stronger variability above 20 hPa. Two of them could be attributed to the fortuitous detection of meteoric debris. Thin layers of strong local enhancements of submicronic aerosols were detected during the other flights. Using simultaneous in situ measurements of the N 2 O tracers by the infra-red SPIRALE balloon-borne spectrometer, it can be concluded that the occurrence of these enhancements is not directly linked to the variability of air mass origins. A process involving atmospheric electric field is proposed to tentatively explain the aerosol containment.

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Characterization of stratospheric aerosol distribution for volcanic and non-volcanic aerosols observed through 16 years of SAGE II data (1984–2000)

Cited by 5 publications

References 43 publications

The radiative effect of the anthropogenic influence on the stratospheric sulfate aerosol layer

The radiative effect of the anthropogenic influence on the stratospheric sulfate aerosol layer

A global climatology of stratospheric aerosol size distribution parameters derived from SAGE II data over the period 1984–2000: 2. Reference data

In situ detection of aerosol layers in the middle stratosphere

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