热带海洋学报 ›› 2012, Vol. 31 ›› Issue (1): 1-9.doi: 10.11978/j.issn.1009-5470.2012.01.001cstr: 32234.14.j.issn.1009-5470.2012.01.001

• 海洋水文学 •    下一篇

一个重构的 153 年热带太平洋次表层上卷海温资料

杜娟 1,2 , 郑飞 1 , 朱江 3   

  1. 1. 中国科学院大气物理研究所 国际气候与环境科学中心 , 北京 100029; 2. 中国科学院研究生院 , 北京 100039; 3. 中国科学院大气物理研究所 大气边界层物理和大气化学国家重点实验室 , 北京 100029
  • 收稿日期:2012-03-13 修回日期:2010-05-05 出版日期:2012-03-10 发布日期:2012-03-13
  • 通讯作者: 郑飞 E-mail: zhengfei@mail.iap.ac.cn
  • 作者简介: 杜娟 (1982 — ), 女 , 河北省保定市人 , 硕士研究生 , 研究方向 ENSO 年代际可预报性。 E-mail tenni2005@gmail.com
  • 基金资助:

    国家自然科学 (40805033, 41075064)

A reconstructed subsurface entrainment temperature data over the tropical Pacific for the past 153y

DU Juan1,2, ZHENG Fei1, ZHU Jiang3   

  1. 1. International Center for Climate and Environment Science ICCES , Institute of Atmospheric Physics , CAS, Beijing 100029, China ; 2. Graduate School of CAS , Beijing 100039, China ; 3. State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry LAPC , Institute of Atmospheric Physics , CAS , Beijing 100029, China
  • Received:2012-03-13 Revised:2010-05-05 Online:2012-03-10 Published:2012-03-13

摘要: 次表层上卷海温对改进ENSO(厄尔尼诺-南方涛动, ElNiñ o-SouthernOscillation)模拟水平及ENSO年代际变化均具有重要作用。利用一个中等复杂程度耦合模式(intermediatecoupledmodel, 简称ICM)和Nudging(张弛逼近)同化方法, 重构了1856—2008年间热带太平洋地区的次表层上卷海温。统计检验表明, 重构的次表层上卷海温与近50年的3种分析资料间具有较高的相关性和较小的均方根误差。此外, 通过此重构的次表层上卷海温资料重新驱动ICM模式, 模拟得到的海表温度距平(seasurfacetemperatureanomaly, 简称SSTA)可以真实地反映出ENSO的年际和年代际变化, 表明此重构的次表层上卷海温资料可用于气候研究, 特别是用于ENSO的大尺度低频变化或年代际气候变化研究。

关键词: 重构的次表层上卷海温, 中等复杂程度耦合模式(ICM), 厄尔尼诺-南方涛动(ENSO)

Abstract: The temperature of subsurface water entrained into the mixed layer ( T e ) is very important to improve El Niño-Southern Oscillation (ENSO ) simulations and modulated ENSO decadal variability. Based on an intermediate coupled model (ICM) and nudging data assimilation method, a long-term monthly-mean Te dataset is reconstructed over the tropical Pacific for the period of 1856 - 2008. The verification results show that the reconstructed Te data have high correlations and small root mean square (RMS) errors with three analysis Te dataset in the last 50 years. Also, the simulated sea surface temperature (SST) anomalies from the ICM, forced by the reconstructed Te dataset, can simulate realistic interannual and decadal variability of ENSO very well. This indicates that the reconstructed Te dataset is useful for climate research, especially for the large-scale low frequency or decadal variability of ENSO .

Key words: reconstructed subsurface entrainment temperature, intermediate coupled model, El Niñ, o-Southern Oscillation

中图分类号: 

  • P731