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首页> 外文期刊>Geophysical Research Letters >Tropical Pacific/Atlantic Ocean interactions at multi-decadal time scales
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Tropical Pacific/Atlantic Ocean interactions at multi-decadal time scales

机译:数十年尺度的热带太平洋/大西洋相互作用

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摘要

Analysis of sea surface temperature (SST) observations suggests a pan-oceanic interaction between the tropical Pacific anti the Atlantic Ocean at multidecadal time scales, such that periods of anomalously high SSTs in the tropical Pacific are followed by a basin-wide SST dipole in the Atlantic Ocean with a time delay of a few decades. The SST anomaly structure: in the Atlantic Ocean is reminscent of variations in the North Atlantic thermohaline circulation. The two ocean basins are linked through an "atmosphrric bridge" involving anomalous fresh water fluxes. Based on the observational findings, the Atlantic thermohaline circulation may strengthen during the next decades in response to the strong decades-long increase in tropical Pacific SST, which will have strong impacts on the climates of North America and Europe through changes in the North Atlantic Oscillation (NAO). [References: 21]
机译:对海表温度(SST)观测值的分析表明,热带太平洋与大西洋之间在数十年的时间尺度上发生了大洋相互作用,因此热带太平洋异常高的SST时期之后是海盆范围内的整个SST偶极子。大西洋的时间延迟了几十年。 SST异常结构:在大西洋中,让人联想到北大西洋热盐环流的变化。这两个海盆通过“大气桥”相连,其中包括异常的淡水通量。根据观测结果,由于热带太平洋海表温度持续数十年的强劲增长,大西洋热盐环流在未来几十年内可能会增强,这将通过北大西洋涛动的变化对北美和欧洲的气候产生强烈影响(NAO)。 [参考:21]

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