摘 要: | 1 INTRODUCTIONIn order to gain further insight into the nature of decadal- scale climate variability at highlatitudes( e.g.,Mysak et al.,1 990 ;Deser and black- mon,1 993) ,there have been a number ofrecent model studies of sea ice- thermohaline circulation interactions which exhibitoscillationson this timescale( Yang and Neelin,1 993;Zhang et al.,1 995 ;Yang and Huang,1 996 ) .Acommon feature of these studies is that the ocean models are integrated using mixedboundary conditions( MBC…
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