末次冰期以来北太平洋中层水演化:研究进展与展望

发布时间：2018-06-29 18:41

本文选题：通风及演化 + 北太平洋中层水　；参考：《地学前缘》2017年04期

【摘要】：北太平洋中层水(NPIW)作为全球海洋经向翻转环流的一个重要组成部分,在区域海洋环境和全球气候变化中扮演着重要角色。本研究对NPIW演化及其对气候变化的影响最新进展进行了评述。认为NPIW形成及通风演化对全球气候变化响应十分敏感。而且高纬气候信号通过这一"海洋通道"传递到北太平洋低纬海域。另一方面,东亚夏季风通过影响黑龙江进入鄂霍次克海的径流量,从而对NPIW的形成和水团组成产生影响。在千年尺度,NPIW通风过程与大西洋经向翻转流(AMOC)呈反相位变化,这与AMOC千年尺度震荡所引发的北太洋海表温、盐变化相关。与NPIW相关的物理过程和生物过程可能是触发冰期大气CO_2浓度变化的一个重要机制。
[Abstract]:As an important component of the global meridional reversal circulation, the North Pacific Intermediate Water (NPIW) plays an important role in the regional marine environment and global climate change. The recent progress of NPIW evolution and its impact on climate change is reviewed. It is considered that NPIW formation and ventilation evolution are sensitive to global climate change response. And high-latitude weather signals pass through this ocean channel to the lower latitudes of the North Pacific Ocean. On the other hand, the East Asian summer monsoon affects the runoff from Heilongjiang to the Sea of Okhotsk, thus affecting the formation of NPIW and the composition of water masses. The ventilation process of NPIW is inversely phase varying with the Atlantic meridional reversal current (AMOC) at the millennium scale, which is related to the variation of sea surface temperature and salt in the North Pacific Ocean caused by the millennium scale oscillation of AMOC. The physical and biological processes associated with NPIW may be an important mechanism for triggering the change of atmospheric COS2 concentration in the glacial age.
【作者单位】：国家海洋局第一海洋研究所海洋沉积与环境地质国家海洋局重点实验室;青岛海洋科学与技术国家实验室海洋地质过程与环境功能实验室;
【基金】：全球变化与海气相互作用专项(GASI-GEOGE-04) 国家自然科学基金项目(41476056,41611130042,U1606401) 极地办国际合作项目(201613) “泰山学者”建设工程专项
【分类号】：P731

【参考文献】