Diurnal tides at low latitudes: Radar, satellite, and model results

Kishore Kumar, G.; Singer, W.; Oberheide, J.; Grieger, N.; Batista, P.P.; Riggin, D.M.; Schmidt, Hauke; Clemesha, B.R.

doi:10.1016/j.jastp.2013.07.005

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Diurnal tides at low latitudes: Radar, satellite, and model results

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Schmidt, Hauke
Middle and Upper Atmosphere, The Atmosphere in the Earth System, MPI for Meteorology, Max Planck Society;

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Kishore Kumar, G., Singer, W., Oberheide, J., Grieger, N., Batista, P., Riggin, D., et al. (2014). Diurnal tides at low latitudes: Radar, satellite, and model results. Journal of Atmospheric and Solar-Terrestrial Physics, 96, 96-105. doi:10.1016/j.jastp.2013.07.005.

Cite as: https://hdl.handle.net/11858/00-001M-0000-001A-27CE-C

Abstract

Mean winds and tidal signatures in the mesosphere and lower thermosphere (MLT) region are derived from meteor radar observations at three sites around 22°S acquired in 2005. The observed differences of mean winds and tides are discussed in relation to the meteorological situation in the lower atmosphere and the possible generation of non-migrating tides. The longitudinally well separated radar sites allowed the evaluation of the migrating tidal component. The seasonal variation of signatures of the diurnal tide derived from ground-based radar observations, TIDI measurements aboard TIMED satellite, and model results obtained with HAMMONIA (Hamburg Model of the Neutral and Ionized Atmosphere) are compared. The ground-based, satellite, and model results of the total diurnal tide are in good agreement. The same is true for the migrating diurnal tide obtained from the radar observations, TIDI observations and from the model studies of HAMMONIA and GSWM00 (Global Scale Wave Model). © 2013 Elsevier Ltd.