海洋学研究 >

2020 , Vol. 38 >Issue 3: 1 - 9

DOI: https://doi.org/10.3969/j.issn.1001-909X.2020.03.001

研究论文

基于Argo实测流场数据对5套海洋模式产品中赤道太平洋中层流的评估

  • 周永远 ,
  • 闫运伟 ,
  • 邢小罡 ,
  • 柴扉
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  • 1.卫星海洋环境动力学国家重点实验室,浙江 杭州 310012;
    2.自然资源部 第二海洋研究所,浙江 杭州 310012;
    3.美国缅因大学 海洋科学学院,缅因州 欧洛诺市 04469
周永远(1995-),男,河南省邓州市人,主要从事赤道太平洋深层环流研究。E-mail:oceanzyy@163.com

收稿日期: 2020-03-17

  网络出版日期: 2020-09-15

基金资助

国家重点研发计划(2016YFC1401601);国家自然科学基金(41730536);自然资源部第二海洋研究所中央级公益性科研院所基本科研业务费专项资金(14283)

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Assessment of the Pacific Equatorial Intermediate Currents in five ocean models outputs based on the observation calculated from Argo trajectories

  • ZHOU Yongyuan ,
  • YAN Yunwei ,
  • XING Xiaogang ,
  • CHAI Fei
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  • 1. State Key Laboratory of Satellite Ocean Environment Dynamics, Hangzhou 310012, China;
    2. Second Institute of Oceanography, Ministry of Natural Resources, Hangzhou 310012, China;
    3. School of Marine Sciences, University of Maine, Orono 04669, USA

Received date: 2020-03-17

  Online published: 2020-09-15

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摘要

本文以Argo轨迹资料计算的赤道太平洋中层流(1 000 m深度流场)作为实测数据,从空间结构特征和时间变化特征两方面对5套常用海洋模式产品(OFES、LICOM、HYCOM、ECCO2和SODA)进行了评估。Argo流场显示赤道太平洋中层流呈条带状结构,且存在明显的西强东弱和南强北弱特征。此外,赤道太平洋中层流存在明显的季节变化且其相位关于赤道对称。5套模式产品的评估结果表明,SODA流场与实测流场最接近,其时空变化特征都与实测流场基本一致;其次是ECCO2流场,除流场动能偏小以外,其他各方面都与实测流场一致;OFES、LICOM和HYCOM流场的模拟效果较差,但都能再现条带状结构特征。

关键词： 赤道太平洋; 中层流场; Argo轨迹; 模式评估

本文引用格式

周永远 , 闫运伟 , 邢小罡 , 柴扉 . 基于Argo实测流场数据对5套海洋模式产品中赤道太平洋中层流的评估[J]. 海洋学研究, 2020 , 38(3) : 1 -9 . DOI: 10.3969/j.issn.1001-909X.2020.03.001

Abstract

A preliminary assessment of the Pacific Equatorial Intermediate Currents (EICs) in five ocean models outputs (OFES, LICOM, HYCOM, ECCO2 and SODA) were conducted according to the spatial and temporal features using observation data which was calculated from Argo trajectories. The EICs in Argo currents field are mainly composed of the alternating east-west zonal jets. In the east-west direction, the currents are strong in the western but weak in the eastern, in the south-north direction, the currents are strong in the southern but weak in the northern. Besides, there are seasonal variations and the phase of seasonal variations is characterized by westward propagation and meridionally symmetrical on the equator. The assessment results show that SODA is the best dataset in these five models, all the characteristics are almost consistent with the observation. The second is ECCO2, the flow field is almost consistent with the observation except the kinetic energy. Then comes the OFES, LICOM and HYCOM, all of them are able to simulate the structures of the alternating zonal jets.

Key words： tropical Pacific Ocean; mid-depth currents; Argo trajectory; ocean models assessment

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