作者: Yuval Burstyn , Belen Martrat , Jordi F Lopez , Eneko Iriarte , Matthew J Jacobson
DOI: 10.3390/QUAT2020016
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摘要: The Middle East (ME) spans the transition between a temperate Mediterranean climate in Levant to hyper-arid sub-tropical deserts southern part of Arabian Peninsula (AP), with complex alpine topography northeast feeding Euphrates and Tigris rivers which support life Southeastern Fertile Crescent (FC). Climate projections predict severe drying several parts ME response global warming, making it important understand controls hydro-climate perturbations region. Here we discuss 23 speleothem stable oxygen isotope (δ18Occ) records from 16 sites SISAL_v1 database (Speleothem Isotope Synthesis Analysis database), provide record past hydro-climatic variability. Sub-millennial changes δ18Occ values primarily indicate precipitation amounts result main synoptic pattern region, specifically cyclones. This is superimposed on change vapor source δ18O composition. coherency (or lack thereof) regional reviewed Pleistocene present, covering Last Glacial Maximum (~22 ka), prominent events during deglaciation, into Holocene. available time-series are investigated by binning normalizing at 25-year 200-year time windows over Important climatic oscillations Holocene discussed, such as 8.2 ka, 4.2 ka 0.7 (the Little Ice Age) Before Present events. Common trends normalized anomalies tested against different archives. Finally, recommendations for future speleothem-based research region given along comments utility completeness SISAL database.