Dipole patterns in tropical precipitation were pervasive across landmasses throughout Marine Isotope Stage 5

Abstract Most of Earth’s rain falls in the tropics, often highly seasonal monsoon rains, which are thought to be coupled inter-hemispheric migrations Inter-Tropical Convergence Zone response cycle insolation. Yet characterization tropical rainfall behaviour geologic past is poor. Here we combine new and existing hydroclimate records from six large-scale regions with fully independent model-based reconstructions across last interval sustained warmth ensuing climate cooling between 130 70 thousand years ago (Marine Isotope Stage 5). Our data-model approach reveals heterogeneous patterns changes climate. We note pervasive dipole-like precipitation patterns, as well different loci throughout Marine 5 than recorded Holocene. These cannot solely attributed meridional shifts Zone.