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Dynamical and chemical contributions to variability in microwave limb sounder Arctic stratoshperic column ozone

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dc.contributor.author Manney, G. en_US
dc.contributor.author Froidevaux, L. en_US
dc.contributor.author Sabutis, J. L. en_US
dc.contributor.author Santee, M. L. en_US
dc.contributor.author Livesey, N. J. en_US
dc.contributor.author Waters, J. W. en_US
dc.date.accessioned 2004-09-17T07:05:33Z
dc.date.available 2004-09-17T07:05:33Z
dc.date.issued 2002
dc.identifier.citation Journal of Geophysical Research - Atmospheres en_US
dc.identifier.clearanceno 02-1736
dc.identifier.uri http://hdl.handle.net/2014/9631
dc.description.abstract Analyses of column ozone above 100 hPa (Col100) derived from Upper Atmosphere Research Satellite Microwave Limb Sounder (MLS) data in February/March 1992-1998 show that about half of the interannual variability in Col100 in the Arctic polar vortex in late winter results from interannual variability in chemical loss. A majority of the remainder results from interannual variability in day-to-day dynamical motions including adiabatic warming/cooling and poleward advection of underlying upper tropospheric subtropical air on short timescales, rather than from variations in descent rates and large-scale transport over the winters. The morphology of Col100 from MLS remains very similar to that in the dynamical models even in the years with most chemical ozone loss. The amount and character of day-to-day variability in dynamical models closely follows that in MLS Col100. Although the morphology of and day-to-day variability in Arctic column ozone are controlled by dynamical processes, chemical ozone loss was a major factor in producing both the low values of and the large interannual variability in Arctic column ozone observed during the 1990s. en_US
dc.format.extent 3981208 bytes
dc.format.mimetype application/pdf
dc.language.iso en_US
dc.subject.other Arctic ozone loss en_US
dc.title Dynamical and chemical contributions to variability in microwave limb sounder Arctic stratoshperic column ozone en_US


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