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首页> 外文期刊>Ocean science >Assessment of responses of North Atlantic winter sea surface temperature to the North Atlantic Oscillation on an interannual scale in 13 CMIP5 models
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Assessment of responses of North Atlantic winter sea surface temperature to the North Atlantic Oscillation on an interannual scale in 13 CMIP5 models

机译：北大西洋冬季海面温度对北大西洋振荡的评估，在13型CMIP5模型中的际规模

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This study evaluates the response of winter-average sea surface temperature (SST) to the winter North Atlantic Oscillation (NAO) simulated by 13 Coupled Model Intercomparison Project Phase 5 (CMIP5) Earth system models in the North Atlantic (NA) (0–65 ° ?N) on an interannual scale. Most of the models can reproduce an observed tripolar pattern of the response of the SST anomalies to the NAO on an interannual scale. The model bias is mainly reflected in the locations of the negative-response centers in the subpolar NA (45–65 ° ?N), which is mainly caused by the bias of the response of the SST anomalies to the NAO-driven turbulent heat flux (THF) anomalies. Although the influence of the sensible heat flux (SHF) on the SST is similar to that of the latent heat flux (LHF), it seems that the SHF may play a larger role in the response of the SST to the NAO, and the weak negative response of the SST anomalies to the NAO-driven LHF anomalies is mainly caused by the overestimated oceanic role in the interaction of the LHF and SST. Besides the THF, some other factors which may impact the relationship of the NAO and SST are discussed. The relationship of the NAO and SST is basically not affected by the heat meridional advection transports on an interannual timescale, but it may be influenced by the cutoffs of data filtering, the initial fields, and external-forcing data in some individual models, and in the tropical NA it can also be affected by the different definitions of the NAO indices.
机译：本研究评估冬季平均海面温度（SST）到冬季北大西洋振荡（NAO）的冬季北大西洋振荡（NAO）在北大西洋（NA）中的13次耦合模型相互比较项目阶段5（CMIP5）地球系统模型（0-65）（0-65） °？n）在际规模上。大多数模型可以在际规模上再现观察到SST异常的响应的观察到的黎波拉模式。模型偏压主要反映在亚极α（45-65°Y）中的负响应中心的位置，这主要由SST异常响应与NAO驱动的湍流热通量的偏差引起的（THF）异常。尽管SST上的显热通量（SHF）的影响与潜热通量（LHF）的影响类似，但似乎SHF可能在SST到NAO的响应中发挥更大的作用，并且弱SST异常对Nao驱动的LHF异常的负面反应主要是由LHF和SST的相互作用中的过高的海洋作用引起的。除了THF之外，还讨论了一些可能影响NAO和SST关系的其他因素。 Nao和SST的关系基本上不受际时间尺度的热处理平流运输的影响，但它可能受到一些个人模型中的数据过滤，初始字段和外部迫使数据的截止的影响，以及热带NA也可能受到NAO指数的不同定义的影响。

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