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根据国家海洋局全部海洋站的水温和水位资料 ,以及“热带海洋和全球大气(TOGA)”的ADCP测流和CTD资料计算并分析了黑潮源流区输入西北太平洋的北向质量通量和西北太平洋及其邻近海域的水温、水位的异常变化 ,同时还应用美国宇航局Goddard地球观测系统 (GEOS) /四维资料同化系统 (DAS)计算并分析了西北太平洋的海面潜热通量的空间和时间变化 .结果表明 ,北向质量通量具有明显的年际变化 .这种年际变化与西北太平洋水温、水位和潜热通量的变化有着合理的因果关系 .当前者减少时 ,后 3者也明显减小 .其物理解释是从热带西太平洋输入西北太平洋的海水质量和热量的减少将导致西北太平洋的减水和热量收入的减少 ,而热量收入的减少又将会引起水温和潜热通量的减小 .
Based on the data of water temperature and water level of all oceanographic stations of the State Oceanic Administration and data of ADCP and CTD in Tropical Ocean and Global Atmosphere (TOGA), the north mass fluxes input to the northwest Pacific from the Kuroshio source region and the northwestern Pacific And the abnormal changes of water temperature and water level in its adjacent sea area. The spatial and temporal variations of the sea surface latent heat fluxes in the Northwest Pacific Ocean were also calculated and analyzed using NASA’s Goddard Earth Observation System (GEOS) / 4-Dimensional Data Assimilation System (DAS). The results show that the northward mass flux has a significant interannual variation, and this interannual variability has a reasonable causal relationship with changes in water temperature, water level and latent heat flux in the western North Pacific. When the former decreases, the latter three also decrease significantly. The physical explanation is that the reduction of seawater quality and heat input into the western North Pacific from the tropical western Pacific will lead to a decrease in water and heat revenues in the northwestern Pacific, and a decrease in heat revenues will in turn cause a decrease in water temperature and latent heat flux.