HR: 10:50h
AN: SA32A-03    [Abstracts]
TI: Nonmigrating diurnal tide long term variability observed by the TIMED Doppler Interferometer (TIDI)
AU: * Wu, Q
EM: qwu@ucar.edu
AF: HAO/NCAR, P.O.Box 3000, Boulder, Co 80307-3000, United States
AU: Killeen, T L
EM: killeen@ucar.edu
AF: HAO/NCAR, P.O.Box 3000, Boulder, Co 80307-3000, United States
AU: Solomon, S C
EM: stans@ucar.edu
AF: HAO/NCAR, P.O.Box 3000, Boulder, Co 80307-3000, United States
AU: Ortland, D A
EM: ortland@nwra.com
AF: Northwest Research Associates, P.O.Box 3027, Bellevue, Wa 98009-3027, United States
AU: Skinner, W R
EM: wskinner@umich.edu
AF: Space Physics Research Lab. The University of Michigan, 2455 Hayward St., Ann Arbor, Mi 48109-2143, United States
AU: Niciejewski, R J
EM: niciejew@umich.edu
AF: Space Physics Research Lab. The University of Michigan, 2455 Hayward St., Ann Arbor, Mi 48109-2143, United States
AB: We will examine the temporal variations of nonmigrating diurnal tide in the mesosphere and lower thermosphere using the TIMED Doppler interferometer neutral wind data. The stratosphere QBO is the major source for the interannual variability of migrating tide in the mesosphere and lower thermosphere. There are reports of the possible QBO related the nonmigrating diurnal tide interannual variabilities. Buy examine the tidal variations using spectral analysis method, we plan to examine long term variations in the nonmigrating diurnal tides beyond these related to the QBO. The TIDI data will allow us to examine the diurnal tide variation at different latitudes and altitudes. We will also examine changes in the mean zonal winds in search of possible connection between mean zonal wind and nonmigrating diurnal tides.
DE: 3332 Mesospheric dynamics
DE: 3334 Middle atmosphere dynamics (0341, 0342)
DE: 3360 Remote sensing
DE: 3369 Thermospheric dynamics (0358)
DE: 3389 Tides and planetary waves
SC: SPA-Aeronomy [SA]
MN: 2007 Fall Meeting