Seasonal variations in Antarctic non-migrating tides

Details Seasonal variations in Antarctic non-migrating tides Seasonal variations in Antarctic non-migrating tides

Dec 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011agufmsa51a1913m&link_type=abstract

American Geophysical Union, Fall Meeting 2011, abstract #SA51A-1913

Other

[3332] Atmospheric Processes / Mesospheric Dynamics, [3389] Atmospheric Processes / Tides And Planetary Waves

Scientific paper

Atmospheric radars operated in Antarctica by Australia (Davis), Japan (Syowa), the United Kingdom and the United States of America (Rothera) and New Zealand (Scott Base) form a network of observing sites that allow decomposition of tidal wind variations in the mesosphere and lower thermosphere (MLT, 70-100km) into three westward and one standing wavenumber. These tides exhibit variations on both seasonal and multi-day time scales. In the case of the semidiurnal westward-one tide, there is evidence that the summertime short term variability is due to changes in their forcing and that this forcing occurs in the opposite (northern) hemisphere. Less is known about the variations at other wavenumbers. Data obtained between 2002 and the present have allowed the compilation of a climatology of southern polar MLT tides. Strong seasonal variations are apparent in a number of the extracted wavenumbers for both the diurnal and the semidiurnal tides. The nature of these seasonal variations will be described and discussed. The relationship between the global planetary wave field (from assimilated data sets) and the short-term variations in tidal amplitude and phase will also be considered.

Affiliated with

Also associated with

No associations

Rating

Seasonal variations in Antarctic non-migrating tides does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Seasonal variations in Antarctic non-migrating tides, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Seasonal variations in Antarctic non-migrating tides will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-875449