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Jones, N., Kasai, Y., Dupuy, E., Murayama, Y., Urban, J., Barret, B., Sinnhuber, M., Kagawa, A., Koshiro, T., Ricaud, P. och Murtagh, D. (2007) *Stratomesospheric CO measured by a ground-based Fourier Transform Spectrometer over Poker Flat, Alaska: Comparisons with Odin/SMR and a 2-D model*.

** BibTeX **

@article{

Jones2007,

author={Jones, N. and Kasai, Y. and Dupuy, E. and Murayama, Y. and Urban, Joachim and Barret, B. and Sinnhuber, M. and Kagawa, A. and Koshiro, T. and Ricaud, P. and Murtagh, Donal P.},

title={Stratomesospheric CO measured by a ground-based Fourier Transform Spectrometer over Poker Flat, Alaska: Comparisons with Odin/SMR and a 2-D model},

journal={Journal of Geophysical Research - Atmospheres},

issn={0148-0227},

volume={112},

issue={D20},

abstract={The interseasonal variability of stratomesospheric CO is reported from Poker Flat, Alaska, using spectra from a ground-based Fourier Transform Spectrometer (gb-FTS) for the time period from 2000 to 2004. The CO spectra were analyzed using an optimal estimation technique that separates the tropospheric and stratospheric/mesospheric components into partial columns. The distribution of CO in the polar winter is such that the gb-FTS retrieved partial column is weighted to the mesosphere. The gb-FTS data are compared with measurements of partial column CO from the Sub-Millimeter Radiometer on board the Odin satellite and shown to be in very good agreement despite the relatively small sample size. The mean difference of the two data sets indicates a small positive bias (7.6 +/- 6%) in favor of the Odin data, with a correlation coefficient, r(2) = 0.91. The gb-FTS data indicate that there is a strong seasonal dependence of the CO partial column that is consistent with known winter polar thermospheric descent of CO enriched air. Year-to-year variability is explained in terms of mesospheric wind dynamics, which show 2004 and components of 2002 were affected by earlier than expected breakdown (30 +/- 13 d) of the winter polar circulation compared with 2000 to 2003. Finally, the measured CO data is compared with a 2-D chemical transport model that gives support to the idea that springtime polar mesospheric CO is driven by meridional winds.},

year={2007},

keywords={Stratosphere, Mesosphere, Atmospheric circulation, Carbon monoxide, Odin Sub-Millimetre Radiometer, Fourier Transform Infrared Spectroscopy},

}

** RefWorks **

RT Journal Article

SR Electronic

ID 56287

A1 Jones, N.

A1 Kasai, Y.

A1 Dupuy, E.

A1 Murayama, Y.

A1 Urban, Joachim

A1 Barret, B.

A1 Sinnhuber, M.

A1 Kagawa, A.

A1 Koshiro, T.

A1 Ricaud, P.

A1 Murtagh, Donal P.

T1 Stratomesospheric CO measured by a ground-based Fourier Transform Spectrometer over Poker Flat, Alaska: Comparisons with Odin/SMR and a 2-D model

YR 2007

JF Journal of Geophysical Research - Atmospheres

SN 0148-0227

VO 112

IS D20

AB The interseasonal variability of stratomesospheric CO is reported from Poker Flat, Alaska, using spectra from a ground-based Fourier Transform Spectrometer (gb-FTS) for the time period from 2000 to 2004. The CO spectra were analyzed using an optimal estimation technique that separates the tropospheric and stratospheric/mesospheric components into partial columns. The distribution of CO in the polar winter is such that the gb-FTS retrieved partial column is weighted to the mesosphere. The gb-FTS data are compared with measurements of partial column CO from the Sub-Millimeter Radiometer on board the Odin satellite and shown to be in very good agreement despite the relatively small sample size. The mean difference of the two data sets indicates a small positive bias (7.6 +/- 6%) in favor of the Odin data, with a correlation coefficient, r(2) = 0.91. The gb-FTS data indicate that there is a strong seasonal dependence of the CO partial column that is consistent with known winter polar thermospheric descent of CO enriched air. Year-to-year variability is explained in terms of mesospheric wind dynamics, which show 2004 and components of 2002 were affected by earlier than expected breakdown (30 +/- 13 d) of the winter polar circulation compared with 2000 to 2003. Finally, the measured CO data is compared with a 2-D chemical transport model that gives support to the idea that springtime polar mesospheric CO is driven by meridional winds.

LA eng

DO 10.1029/2006JD007916

LK http://dx.doi.org/10.1029/2006JD007916

OL 30