In The Northern Hemisphere The Holocene Climate Cycles In One Thousand And Driving Mechanism

The North Atlantic thermohaline circulation plays an important role in global water vapor and energy cycle, which associated with solar energy, climate change in Greenland and the Asia monsoon. Studies on climate linking to solar changes and the North Atlantic were reviewed during Holocene, approximately. Here we report a reconstruction of Solar-transfer model of millennium cycle covering the past9,000years, in different regions, composed of twelve records from proxy indicator of solar activity, the North Atlantic climate zone, the Asian monsoon region and the tropical ocean area.Compared to the SSA and Fourier Analysis, Wavelet Analysis, as a method of signal processing, can better reveal the spectral characteristics of signal and attract major attention in Paleoclimate. It can be used to identify common spectral signatures for Asian stalagmite records、 Ice core records and Sediments of deep-sea records. The contribution rate of variance、 correlation coefficient and Phase of records were obtained by computer simulation. They provides the relationship of millennium cycle between solar activity and global climate, we find out that to some extent, the phase of Holocene climate record lags that of solar activity; the contribution rate of variacnce and correlation coefficient both less than solar activity, suggestting that, As the changing of global climate, the North Atlantic ice-drafting events results from solar output first, and meanwhile could have major impacted of different climate system of earth.Removing chronology of uncertainty, we combine Solar-transfer model for each of the processes of millennium cycle. According to our reconstruction, the energy transfer process of solar activity in millennium cycle can be divided into Energy Level A, composed of atmospheric△14C record、 Greenland ice core Be record、 the sunspot number by reconstruction and the North Atlantic ice drafting event record; Energy Level B, composed of Asian stalagmite records(DA、 Q5and HS4)、 Greenland ice core(GRIP、 GISP2and North-GRIP)δ18O records and Reconstruction of temperature in Greenland; Energy Lever C, composed of Cariaco Basin Ti record. Further investigation for the phase of different records suggests that the comparison between phase of warm and cold shows that the Lag phase of strength and weak climatic events from DA is163and112a; ice drafting is14and63a; North-GRIP is150and163a and so on. Compared with the climate of North Atlantic, weak monsoon events behind the original phase, but the strong monsoon events ahead, Therefore, It proved that as the production of North Atlantic Deep Water, potentially providing an mechanism for amplifying the solar signals and transmitting them globally, the warm events of Asia appear to have been influenced by variations in solar, directly, while drift ice events controlled the cold events of Asia through the entire Holocene.