Reconstruction of sea surface temperature and salinity of the Arabian Sea

High-frequency suborbital variations (Dansgaard-Oeschger cycles) characterize the climatic history of the Northern Hemisphere as observed in Greenland ice cores, deep-sea sediments of the North Atlantic, the Californian borderland, the Arabian Sea, the South China Sea, and the Chinese loess area. Paleoceanographic data from core KL126 from the Bay of Bengal in combination with data from the other Asian monsoonal areas indicate that the feedback processes involving snow and dust of the Tibetan Plateau vary the summer monsoon capacity to transport moisture into central South Asia and into the atmosphere. We postulate that the summer monsoon initiates, amplifies, and terminates these cycles in the Northern Hemisphere.

高频次近地轨道变化（Dansgaard-Oeschger 循环）描绘了北半球气候历史，这一描绘可通过格陵兰冰芯、北大西洋深海沉积物、加利福尼亚边境地带、阿拉伯海、南海以及中国黄土区等地区的观测得到。来自孟加拉湾核心 KL126 的古海洋学数据，结合其他亚洲季风区的数据，表明涉及青藏高原的雪和尘埃的反馈过程，影响着夏季季风的输水能力，进而影响其将水分输送到南亚中部和大气中的过程。我们推测，夏季季风在北半球中启动、放大并结束这些循环。