违反了 PRIMARY KEY 约束 'PK_t_counter'。不能在对象 'dbo.t_counter' 中插入重复键。 语句已终止。 耦合模式中潮汐对北大西洋模拟的影响研究-The influence of tidal forcing on North Atlantic simulation in a coupled climate model
doi:  10.3878/j.issn.1006-9585.2017.17063
耦合模式中潮汐对北大西洋模拟的影响研究

The influence of tidal forcing on North Atlantic simulation in a coupled climate model
摘要点击 314  全文点击 176  投稿时间:2017-04-09  最后修改时间:2017-04-21
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基金:  国家重点项目发展基础科学 (2013CB956204)、中国科学院战略重点研究项目“西太平洋系统:结构、动力、影响” (Grant No. XDA11010304) 和国家自然科学基金 (41275084, 41376019和41075059)
中文关键词:  引潮势,大西洋经向翻转环流,西边界流,耦合模式
英文关键词:  tidal forcing, Atlantic meridional overturning circulation, western boundary current, coupled model
           
作者中文名作者英文名单位
于溢yuyi中国海洋大学海洋与大气学院
刘海龙liuhailong中国科学院大气物理海洋所
林鹏飞linpengfei中国科学院大气物理海洋所
兰健lanjian中国海洋大学海洋与大气学院
引用:于溢,刘海龙,林鹏飞,兰健.2017.耦合模式中潮汐对北大西洋模拟的影响研究[J].气候与环境研究
Citation:yuyi,liuhailong,linpengfei,lanjian.2017.The influence of tidal forcing on North Atlantic simulation in a coupled climate model[J].Climatic and Environmental Research(in Chinese)
中文摘要:
      本文将八个主要平衡分潮加入到耦合模式中,对比研究潮汐对北大西洋模拟影响。由于潮汐的引入,模式模拟SST在北大西洋中纬度区域偏差显著减小,高纬度区域SST降温明显。SST模拟的改变使潮汐试验的海表净热通量模拟误差下降了约30%,但高纬度海冰显著增加。模式中引入潮汐对北大西洋上层环流,尤其是西边界流的路径模拟改进显著,这是SST及海表净热通量模拟改变的主要原因。同时,北大西洋上层和深层西边界流在潮汐的作用下,都表现出环流减弱的特点,这也使得大西洋经向翻转环流在26.5oN处上层2000m的输送减弱,与观测数据更为接近。较弱的大西洋经向翻转环流导致海洋热量在中低纬度聚集而无法输送到高纬度区域,这是造成潮汐试验模拟的海温在中低纬度偏高、高纬度偏低的原因,较弱的热输送也同时导致了潮汐试验中北半球海冰面积增加。
Abstract:
      The eight main tide constituents have been implemented into a coupled climate model to investigate the influence of tidal forcing on North Atlantic simulation. When implementing the tidal forcing, the bias of SST in middle latitudes is significant reduced, the simulation of SST in high latitudes becomes cooler. The change of SST leads the bias of net sea surface heat flux decrease by about 30% with tidal forcing, compared to observation data. However, the sea ice increases obviously. The pathway of North Atlantic circulations, especially the west boundary current has been simulated fairly better due to tidal forcing. This result makes the change of SST and net sea surface heat flux. The transports of both upper and deep west boundary current decrease with tidal forcing. Compared with observation data, the transports of Atlantic meridional overturning circulation (AMOC) in tide experiment is captured well in the upper 2000m at 26.5oN。The lower transports of AMOC leads the less heat poleward transport with tidal forcing. This is the reason that the temperature becomes warmer in low-middle latitudes and cooler in high latitudes due to tidal forcing. The sea ice also increases by 40% in northern hemisphere.
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