Interannual variability in the Gulf of Alaska during the 1991-94 El Nino

Mass and heat budgets in the Gulf of Alaska during the 1991-94 El Nino are examined using hydrographic data from several cruises undertaken as part of the International North Pacific Ocean Climate program and the repeated Can adian hydrographic sections out to Ocean weather Station Papa. The geostrop hic ocean circulation resulted in convergence of heat into the region in sp ring 1992 and spring 1993. The advective heat convergence in spring 1992 co rresponded to an average surface heat flux from the ocean to the atmosphere of about 74 W m(-2) in comparison with only 30 W m(-2) during spring 1993. The larger ocean heat loss to the atmosphere in 1992 followed a winter of large tropical SST anomalies and anomalously low pressure in the Aleutian l ow.