For instance, the southward migration of the ITCZ resulted in continuous droughts of the Yucatan from ∼950 to ∼750 CE, which was proposed as one of the main factors for the disappearance of the Mayan civilization (Haug et al., 2003). This effect also emerged in past history. Today, the ITCZ, as the heaviest rainfall belt on the Earth, impacts the societal and economic activity of nearly half the world's population by regulating the distribution of precipitation in the middle and low latitudes (Denniston et al., 2016). The Intertropical Convergence Zone (ITCZ), characterized by low atmospheric pressures stemming from upward movement induced by the trade winds convergence, is an important component of the atmospheric general circulation (Giresse, 2008). As one of the three major Earth orbital parameters, obliquity regulates the latitudinal distribution of top-of-atmosphere incoming solar radiation, impacting the atmospheric general circulation and the associated meridional heat and moisture fluxes (Bosmans et al., 2015 Mantsis et al., 2011, 2014 Sachs et al., 2001 Trenberth & Caron, 2001). Obliquity is referred to as the tilt of Earth's rotational axis ranging from 22° to 24.5° with a relative stable period of 41 kyr (Mantsis et al., 2011, 2014). The obliquity forcing on the latitudinal migrations of the ITCZ could be imparted by variations in the North Atlantic sea ice cover, resulting from Agulhas leakage induced changes in the ventilation strength of the Atlantic meridional overturning circulation. By integrating this new precipitation record with the published precipitation records at the northern margin of the ITCZ's latitudinal displacement, we found that precipitation in the Northern and Southern Hemispheres varied in anti-phase on the obliquity band, indicating that the latitudinal migration of the ITCZ was dominated by obliquity. Here, we present a new, extended, high-resolution (∼2 kyr) precipitation record covering the past ∼410 kyr from a marine sedimentary sequence collected at the southern margin of the ITCZ's latitudinal displacement within the Indo-Pacific region. However, the specific forcing mechanism remains unclear due to scarcity of long-term and high-resolution precipitation records from the Indo-Pacific region. Obliquity influences the latitudinal position of the Intertropical Convergence Zone (ITCZ).
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