2002–2003 Arctic ozone loss deduced from POAM III satellite observations and the SLIMCAT chemical transport model

Singleton, Charles S.; Randall, C. E.; Chipperfield, M. P.; Davies, S.; Feng, W.; Bevilacqua, R. M.; Hoppel, K. W.; Fromm, M. D.; Manney, G. L.; Harvey, V. L.

doi:10.5194/acpd-4-7011-2004

Cited by 3 publications

(4 citation statements)

References 19 publications

(27 reference statements)

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“…March the maximum accumulated ozone loss obtained by this method is 1.2 ppmv for the air masses descending to Θ=425 K. Match found an ozone loss of 1.5±0.2 ppmv at that level. At most levels between Θ=400-500 K the results from Singleton et al (2005) suggest slightly smaller ozone losses than Match. However, the results agree within their respective uncertainties.…”

Section: Egumentioning

confidence: 83%

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Chemical ozone loss in the Arctic winter 2002/2003 determined with Match

Streibel¹,

Rex²,

Gathen³

et al. 2005

Preprint

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Abstract. The Match technique was used to determine chemically induced ozone loss inside the stratospheric vortex during the Arctic winter 2002/2003. From end of November 2002, which is the earliest start of a Match campaign ever, until end of March 2003 approximately 800 ozonesondes were launched from 30 stations in the Arctic and mid latitudes. Ozone loss rates were quantified from the beginning of December until mid of March in the vertical region of 400–550 K potential temperature. In December ozone destruction rates varied between 10–15 ppbv/day depending on height. Maximum loss rates around 35 ppbv/day were reached during late January. Afterwards ozone loss rates decreased until mid-March when the final warming of the vortex began and measurements for the campaign were no longer possible. In the period of 2 December 2002 to 16 March 2003 the accumulated ozone loss reduced the partial ozone column of 400–500 K potential temperature by 56±4 DU. The sensitivity of the results on recent improvements of the approach has been tested.

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Section: Egumentioning

confidence: 83%

“…For January to March the accumulated ozone loss is ∼12-14% or 56-66 DU which is in agreement with our partial column result of about 51 DU for the same period. Singleton et al (2005)…”

Section: Summary and Discussionmentioning

confidence: 99%

Chemical ozone loss in the Arctic winter 2002/2003 determined with Match

Streibel¹,

Rex²,

Gathen³

et al. 2005

Preprint

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“…Passive ozone is set equal to active ozone on December 1 of each year. Passive ozone can be used to estimate chemical ozone loss as the difference between passive and active (or measured) ozone (e.g., Adams, Strong, Zhao, et al., 2012; Dhomse et al., 2016; Feng et al., 2007; Lindenmaier et al., 2012; Singleton et al., 2005, 2007). Here, we use 6‐hourly model output for 2000–2020 (2.8° × 2.8° spatial resolution), interpolated to the geolocation of Eureka.…”

Section: Data Sets and Methodsmentioning

confidence: 99%

Unprecedented Spring 2020 Ozone Depletion in the Context of 20 Years of Measurements at Eureka, Canada

et al. 2021

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In the winter and spring of 2019/2020, the unusually cold, strong, and stable polar vortex created favorable conditions for ozone depletion in the Arctic. Chemical ozone loss started earlier than in any previous year in the satellite era and continued until late March, resulting in the unprecedented reduction of the ozone column. The vortex was located above the Polar Environment Atmospheric Research Laboratory in Eureka, Canada (80°N, 86°W) from late February to the end of April, presenting an excellent opportunity to examine ozone loss from a single ground station. Measurements from a suite of instruments show that total column ozone was at an all-time low in the 20-year data set, 22-102 DU below previous records set in 2011. Ozone minima (<200 DU), enhanced OClO and BrO slant columns, and unusually low-HCl, ClONO 2 , and HNO 3 columns were observed in March. Polar stratospheric clouds were present as late as 20 March, and ozonesondes show unprecedented depletion in the March and April profiles (to <0.2 ppmv). While both chemical and dynamical factors lead to reduced ozone when the vortex is cold, the contribution of chemical depletion (based on the variable correlation of ozone and temperature) was exceptional in spring 2020 when compared to typical Arctic winters. Mean chemical ozone loss over Eureka was estimated to be 111-126 DU (27%-31%) using April measurements and passive ozone from the SLIMCAT chemical transport model. While absolute ozone loss was generally smaller in 2020 than in 2011, percentage ozone loss was greater in 2020.Plain Language Summary While an ozone hole forms over Antarctica every year, the Arctic typically does not experience such dramatic ozone loss. The chlorine and bromine (halogen) reactions that destroy ozone require very low temperatures that are rarely observed in the Arctic stratosphere. The winter and spring of 2019/2020, however, was unusually cold in the Arctic, and consequently, a large amount of ozone was destroyed by halogen chemistry. To understand the behavior of ozone in spring 2020, we use measurements from the Polar Environment Atmospheric Research Laboratory in Eureka, Canada. Eureka (at 80°N) is one of the northernmost research stations in the world, and thus an ideal location to observe ozone loss. Spring 2020 ozone minima were lower than any in the 20-year data set, and ozone destruction was ongoing until the end of March, which is rare in the Arctic. While ozone concentrations are largely determined by circulation patterns in the Arctic stratosphere, chemistry in spring 2020 was a much larger factor than usual. Halogen chemistry destroyed 27%-31% of the total ozone, compared to about 10% in a typical winter. The only year on record with comparable ozone loss is 2011, and a larger percentage of the ozone column was lost in 2020. BOGNAR ET AL.

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“…Early‐winter ozone loss depends critically on vortex sunlight exposure [e.g., Rex et al , , ; Singleton et al , ]. Extensive sunlight exposure in December 2012/January 2013 was essential to the exceptional early‐winter ozone loss in that year [ Manney et al , ].…”

Section: Polar Processing In the 2014/2015 Wintermentioning

confidence: 99%

A minor sudden stratospheric warming with a major impact: Transport and polar processing in the 2014/2015 Arctic winter

Manney

Lawrence

Santee

et al. 2015

Geophysical Research Letters

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Stratospheric transport and polar processing during the 2014/2015 Arctic winter were strongly influenced by a minor sudden stratospheric warming (SSW) in early January. Disturbances to temperatures and trace gases in the middle and upper stratosphere were similar in character to those associated with major SSWs: The stratopause dropped, and vertical temperature gradients weakened, followed by renewed descent of mesospheric air. The lower stratospheric polar vortex was barely disrupted and remained unusually strong throughout the winter. The SSW did, however, cause lower stratospheric temperatures to rise well above chlorine activation thresholds; trace gas abundances from the Aura Microwave Limb Sounder (MLS) were consequently exceptional. The degree of chlorine activation in January was the smallest, and lower stratospheric ozone values in February were the highest, in the 11 year MLS record. The major role played by a minor SSW highlights the Arctic stratosphere's sensitivity to a spectrum of dynamical variability.

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2002–2003 Arctic ozone loss deduced from POAM III satellite observations and the SLIMCAT chemical transport model

Cited by 3 publications

References 19 publications

Chemical ozone loss in the Arctic winter 2002/2003 determined with Match

Chemical ozone loss in the Arctic winter 2002/2003 determined with Match

Unprecedented Spring 2020 Ozone Depletion in the Context of 20 Years of Measurements at Eureka, Canada

A minor sudden stratospheric warming with a major impact: Transport and polar processing in the 2014/2015 Arctic winter

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