THE TROPICAL PACIFIC AND THE SOUTHERN OCEAN DOMINATE MANY ASPECTS OF GLOBAL SURFACE CLIMATE VARIABILITY AND INTERACT THROUGH TELECONNECTIONS IN THE ATMOSPHERIC AND OCEAN CIRCULATION. SURFACE CLIMATE IN THE SOUTHERN OCEAN IS STRONGLY INFLUENCED BY TROPICAL VARIABILITY BY CO-VARIATIONS IN THE ATMOSPHERIC CIRCULATION SEA-ICE EXTENT AND DRIFT. HOWEVER THE EFFECT OF THIS VARIABILITY ON SOUTHERN OCEAN WATER MASSES AND OCEAN CIRCULATION ON LONGER (DECADAL) TIME SCALES AS WELL AS POTENTIAL FEEDBACK OF VARIABILITY IN THE SOUTHERN OCEAN ON THE TROPICS THROUGH OCEAN CIRCULATION ARE NOT WELL UNDERSTOOD.