ozone depletion
Antarctic ozone depletion between 1960 and 1980 in observations and chemistry–climate model simulations
... column ozone be- tween 1960 and 2000 was reproduced – within its uncertainty range – by seven models (CMAM, LMDZrepro, UMSLIM- CAT, UMUKCA-METO, UMUKCA-UCAM, WACCM and ...WMO ozone assessment (WMO, 2011), ...
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Temporal and spatial characteristics of ozone depletion events from measurements in the Arctic
... Nghiem, S. V., Rigor, I. G., Richter, A., Burrows, J. P., Shepson, P. B., Bottenheim, J., Barber, D. G., Steffen, A., Latonas, J., Wang, F. Y., Stern, G., Clemente-Colon, P., Martin, S., Hall, D. K., Kaleschke, L., ...
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A study of polar ozone depletion based on sequential assimilation of satellite data from the ENVISAT/MIPAS and Odin/SMR instruments
... calculated trajectories. It should be possible to use this tech- nique also with satellite data but individual satellite measure- ments are by and large more noisy which makes the method more difficult to implement. ...
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The spatial scale of ozone depletion events derived from an autonomous surface ozone network in coastal Antarctica
... and G. Over the next twelve h, the low pressure system dissipated. Figure 5e shows the mslp at midnight at the start on 19 August, the time of maximum ozone depletion across the network. Although wind ...
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Derivation of the reduced reaction mechanisms of ozone depletion events in the Arctic spring by using concentration sensitivity analysis and principal component analysis
... of ozone and BrO in the boundary layer during the Arctic springs of the years 2000 and ...springtime ozone depletion in the ...by ozone at ...
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Vertical structure of Antarctic tropospheric ozone depletion events: characteristics and broader implications
... Simpson, W. R., von Glasow, R., Riedel, K., Anderson, P., Ariya, P., Bottenheim, J., Burrows, J., Carpenter, L. J., Frieß, U., Goodsite, M. E., Heard, D., Hutterli, M., Jacobi, H.-W., Kaleschke, L., Neff, B., Plane, J., ...
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Investigation of Arctic ozone depletion sampled over midlatitudes during the Egrett Campaign of spring/summer 2000
... infer ozone depletion encountered in the midlatitude lower stratosphere dur- ing the ...that ozone is depleted by 20% relative to its winter ...
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Observation-based assessment of stratospheric fractional release, lifetimes, and Ozone Depletion Potentials of ten important source gases
... semi-empirical Ozone Depletion Potentials (ODPs) calculated using these FRFs and the stratospheric lifetimes from Table 2 in comparison to recent estimates from WMO ...
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Vertical structure of Antarctic tropospheric ozone depletion events: characteristics and broader implications
... tropospheric ozone depletion event (ODE) studies have focussed on time-series measure- ments, with comparatively few studies of the vertical com- ...of ozone during Antarctic ...where ozone ...
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Mineral dust variability in central West Antarctica associated with ozone depletion
... et al., 2011) have both revealed pronounced increases of dust concentrations during the ozone depletion decades. Aluminosilicate levels recorded at JRI more than dou- bled during the 20th century, with a ...
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Halogens and their role in polar boundary-layer ozone depletion
... polar ozone depletion when only small amounts of iodine-containing compounds, such as CH 2 I 2 , IBr or ICl, are present in an air ...enhanced depletion of gaseous ...
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Uncertainties in modeling heterogeneous chemistry and Arctic ozone depletion in the winter 2009/2010
... tex definition reduces the differences in ozone depletion between the sensitivity runs in late March, since more and more mid-latitude air is included in the average. Another reason is that the exact timing ...
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Semi-empirical models for chlorine activation and ozone depletion in the Antarctic stratosphere: proof of concept
... between physical and chemical processes might be necessary for more detailed stud- ies of key atmospheric sensitivities of ozone depletion and climate change. These semi- empirical models which only ...
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Vortex-averaged Arctic ozone depletion in the winter 2002/2003
... the depletion rates in Table 3 is given in Table ...the ozone column loss is approximated by a sum, ...chemical ozone loss take place above 525 K and below 380 K, but actually there might have been a ...
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The potential importance of frost flowers, recycling on snow, and open leads for ozone depletion events
... We assessed the influence of different surface combinations (open lead/frost flowers) on the chemistry in the model. Re- sults showed noticeable modifications affecting the compo- sition of aerosols and the deposition ...
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Observation-based assessment of stratospheric fractional release, lifetimes, and ozone depletion potentials of ten important source gases
... FRFs with mean age of air should thus only be considered as time-independent as long as there are no major changes in stratospheric transport or relative tropospheric growth rates. When using such correlations the ...
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Characteristics of tropospheric ozone depletion events in the Arctic spring: analysis of the ARCTAS, ARCPAC, and ARCIONS measurements and satellite BrO observations
... indicate local ozone losses (Zeng et al., 2003, 2006), tropospheric BrO vertical columns from satellite measurements were used to estimate the source region of ozone-poor air mass in the Arctic. Figure 2 ...
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First-year sea-ice contact predicts bromine monoxide (BrO) levels better than potential frost flower contact
... that ozone depletion events detected at Halley Bay, Antarctica were correlated with airmass mo- tions that brought air in contact with a large coastal polyna that often produces ...
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Options to accelerate ozone recovery: ozone and climate benefits
... and ozone information from Table 1 is shown in an alternative way in ...uating ozone depletion in the models shown and all the con- stants used in ...each ozone bar would be expected to be the ...
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Extrapolating future Arctic ozone losses
... Naujokat, 1997, and updates). Even if analysed temperatures are used in state-of-the- art chemical transport models the observed ozone depletion is not modelled correctly (Guirlet et al., 2000; Rex et al., ...
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