A study of temperature and meridional wind relationships at high northern latitudes
Cho, Y. M., Shepherd, G. G., Shepherd, M. G., Hocking, W. K., Mitchell, N. J. and Won, Y. I., 2011. A study of temperature and meridional wind relationships at high northern latitudes. Journal of Atmospheric and Solar-Terrestrial Physics, 73 (9), pp. 936-943.
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MLT (Mesosphere and Lower Thermosphere) temperatures were measured using ground-based instruments at two high latitude stations over several winters. Warmer temperatures in wintertime are known to arise from the large-scale hemispheric circulation that drives downwelling and upwelling in the MLT region, leading to accompanying adiabatic heating and cooling. Although a relationship between temperature and meridional wind is expected, it has not yet been properly demonstrated. The OH airglow temperatures measured with a SATI (Spectral Airglow Temperature Imager) instrument and a Michelson interferometer are compared with co-located radar wind measurements at Resolute Bay (75 degrees N, 95 degrees W) and Esrange (68 degrees N, 21 degrees E), respectively. The temperature and meridional wind have a positive relationship that is consistent with the large-scale circulation, but the zonal wind is only weakly correlated.
|Creators||Cho, Y. M., Shepherd, G. G., Shepherd, M. G., Hocking, W. K., Mitchell, N. J. and Won, Y. I.|
|Departments||Faculty of Engineering & Design > Electronic & Electrical Engineering|
|Additional Information||12th International Workshop on Technical and Scientific Aspects of MST Radar. 17-23 May 2009. London, Canada. Sp. Iss. SI|
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