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SUMMARY:Southern Ocean Circulation and Frontal Dynamics from Cryosat-2 Alo
 ng-track Radar Altimetry - Erik Mackie (BAS)
DTSTART:20190529T100000Z
DTEND:20190529T110000Z
UID:TALK125530@talks.cam.ac.uk
CONTACT:Dr Ryan Patmore
DESCRIPTION:In this talk\, the large-scale circulation of the Southern Oce
 an is investigated through the use of Dynamic Ocean Topography (DOT)\, the
  difference between the Sea Surface Height (SSH) measured by satellite alt
 imetry and the Earth’s geoid. Using the enhanced spatial coverage of the
  Southern Ocean from Cryosat-2\, a novel along-track DOT dataset is derive
 d and presented\, which exploits the high resolution data inherent in the 
 along-track SSH measurements. The effect of using different geoid models i
 n the DOT calculation is also investigated. This new dataset is then used 
 to analyse inter-annual and seasonal variability in the DOT and currents o
 f the Southern Ocean\, revealing relationships with large-scale climate mo
 des\, wind forcing and ocean mass changes. Additionally\, the along-track 
 DOT is used to detect locations of fronts and jets in the Antarctic Circum
 polar Current\, and to investigate inter-annual variability in these front
 al positions.
LOCATION:British Antarctic Survey\, Innovation Centre\, Seminar Room 2
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