Tropical sea surface temperatures for the past four centuries reconstructed from coral archives

摘要: Most annually resolved climate reconstructions of the Common Era are based on terrestrial data, making it a challenge to independently assess how recent changes have affected oceans. Here as part Past Global Changes Ocean2K project, we present four regionally calibrated and validated sea surface temperatures in tropics, 57 published publicly archived marine paleoclimate data sets derived exclusively from tropical coral archives. Validation exercises suggest that our interpretable for much past 400 years, depending availability within, reconstruction validation statistics for, each target region. Analysis trends suggests Indian, western Pacific, Atlantic Ocean regions were cooling until modern warming began around 1830s. The early 1800s an exceptionally cool period Indo-Pacific region, likely due multiple large volcanic eruptions occurring nineteenth century. Decadal-scale variability is quasi-persistent feature all basins. Twentieth century associated with greenhouse gas emissions apparent West Oceans, but find no evidence either natural or anthropogenic forcings altered El Nino–Southern Oscillation-related variance temperatures. Our marine-based regional serve benchmarks against which well model simulations can be compared basis studying processes by oceans mediate change.