| TAN Wei,HUANG Ruixin,WANG Weiqiang,WANG Xin.Zonal overturning circulation and heat flux induced by heaving modes in the world oceans[J].Acta Oceanologica Sinica,2015,34(11):80-91 |
| 世界大洋中绝热运动导致的纬向翻转环流和纬向热输送 |
| Zonal overturning circulation and heat flux induced by heaving modes in the world oceans |
| 投稿时间：2015-05-08 修订日期：2015-07-14 |
| DOI：10.1007/s13131-015-0751-3 |
| 中文关键词: 绝热运动 风生环流 纬向翻转环流 纬向热输送 |
| 英文关键词:adiabatic motions heaving wind-driven circulation zonal overturning circulation zonal heat flux |
| 基金项目:The CAS/SAFEA International Partnership Program for Creative Research Teams of Chinese Academy of Sciences; the National Natural Science Foundation of China under contract Nos 41422601, 41376024 and 41376025. |
| 作者 | 单位 | E-mail | | 谭伟 | 河海大学, 南京, 210098 | | | 黄瑞新 | 中国科学院南海海洋研究所, 热带海洋环境国家重点实验室, 广州, 510301
伍兹霍尔海洋研究所, 美国, 伍兹霍尔, 02543 | rhuang@whoi.edu | | 王卫强 | 中国科学院南海海洋研究所, 热带海洋环境国家重点实验室, 广州, 510301 | | | 王鑫 | 中国科学院南海海洋研究所, 热带海洋环境国家重点实验室, 广州, 510301 | |
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| 中文摘要: |
| 纬向翻转和纬向热输送是大洋环流和气候系统的重要环节,但是这两个概念目前尚未广泛应用.年际和年代际风应力的变化所导致的heaving(绝热运动)可以形成异常的纬向翻转和纬向热输送.本文采用一个简单的约化重力模式研究世界大洋中heaving所形成的异常纬向翻转和纬向热输送.例如,年代际赤道东风应力的加强可以产生负的纬向翻转(-0.3×106 m3/s)和相应西向的纬向热输送(-11.2 TW).可见,heaving形成的纬向翻转和纬向热输送异常在大洋环流和气候变化中能够起重要的作用. |
| 英文摘要: |
| Zonal overturning circulation (ZOC) and its associated zonal heat flux (ZHF) are important components of the oceanic circulation and climate system, although these conceptions have not received adequate attentions. Heaving induced by inter-annual and decadal wind stress perturbations can give rise to anomalous ZOC and ZHF. Based on a simple reduced gravity model, the anomalous ZOC and ZHF induced by idealized heaving modes in the world oceans are studied. For example, in a Pacific-like model basin intensified equatorial easterly on decadal time scales can lead to a negative ZOC with a non-negligible magnitude (-0.3×106 m3/s) and a considerable westward ZHF with an amplitude of -11.2 TW. Thus, anomalous ZOC and ZHF may consist of a major part of climate signals on decadal time scales and thus play an important role in the oceanic circulation and climate change. |
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