Coherent sea level response to the Antarctic Oscillation

Details Coherent sea level response to the Antarctic Oscillation Coherent sea level response to the Antarctic Oscillation

Oct 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002georl..29t..11a&link_type=abstract

Geophysical Research Letters, Volume 29, Issue 20, pp. 11-1, CiteID 1950, DOI 10.1029/2002GL015733

Physics

11

Oceanography: Physical: Sea Level Variations, Oceanography: General: Arctic And Antarctic Oceanography, Oceanography: Physical: Air/Sea Interactions (0312), Oceanography: General: Upwelling And Convergences

Scientific paper

Large-scale sea level variations around Antarctica were studied and their relationship with atmospheric variations was investigated. Tide gauge data at five coastal stations were used. Coherent sea level variations were clearly detected for all stations on intraseasonal time scales. The coherent variations had significant negative correlations with an index of the atmospheric annular mode variation (Antarctic Oscillation). Coherence was significant for periods from 10 to 100 days with negligible time lag. The negative correlation is consistent with the mechanism that a high (low) westerly anomaly leads to a stronger (weaker) northward Ekman drift and causes divergence (convergence) around Antarctica.

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