论文标题
气候网络曲率揭示的不同厄尔尼诺类型的远程连接模式
Teleconnection patterns of different El Niño types revealed by climate network curvature
论文作者
论文摘要
厄尔尼诺事件的多样性通常由东太平洋（EP）和中太平洋（CP）类型描述。尽管已经研究了针对不同地区的EP和CP事件的远程影响，即远程连接，但仍缺乏对其远程连接模式的全球图景。在这里，我们使用在从2米空气温度数据构建的气候网络上应用的eman-Ricci曲率，以区分区域连接和远程连接。我们的结果证实，远程连接模式受厄尔尼诺类型的强烈影响。 EP事件主要具有热带遥控性，而CP事件涉及热带 - 界面连接，尤其是在太平洋中。此外，即使在CP事件期间，中太平洋地区也没有很多远程连接。主要是东太平洋介导了两种厄尔尼诺类型的远程影响。
The diversity of El Niño events is commonly described by two distinct flavors, the Eastern Pacific (EP) and Central Pacific (CP) types. While the remote impacts, i.e. teleconnections, of EP and CP events have been studied for different regions individually, a global picture of their teleconnection patterns is still lacking. Here, we use Forman-Ricci curvature applied on climate networks constructed from 2-meter air temperature data to distinguish regional links from teleconnections. Our results confirm that teleconnection patterns are strongly influenced by the El Niño type. EP events have primarily tropical teleconnections whereas CP events involve tropical-extratropical connections, particularly in the Pacific. Moreover, the central Pacific region does not have many teleconnections, even during CP events. It is mainly the eastern Pacific that mediates the remote influences for both El Niño types.
