NOAA/WDS Paleoclimatology - Stott et al. 2007 Tropical W. Pacific Foraminiferal Stable Isotope and Mg/Ca Data

Establishing what caused Earth's largest climatic changes in the past requires a precise knowledge of both the forcing and the regional responses. We determined the chronology of high- and low-latitude climate change at the last glacial termination by radiocarbon dating benthic and planktonic foraminiferal stable isotope and magnesium/calcium records from a marine core collected in the western tropical Pacific. Deep-sea temperatures warmed by ~2°C between 19 and 17 thousand years before the present (ky B.P.), leading the rise in atmospheric CO2 and tropicalŋsurface-ocean warming by ~1000 years. The cause of this deglacial deep-water warming does not lie within the tropics, nor can its early onset between 19 and 17 ky B.P. be attributed to CO2 forcing. Increasing austral-spring insolation combined with sea-ice albedo feedbacks appear to be the key factors responsible for this warming.

本归档古气候学（Paleoclimatology）研究数据集可由美国国家海洋和大气管理局（National Oceanic and Atmospheric Administration, NOAA）下属的国家环境信息中心（National Centers for Environmental Information, NCEI）获取，该机构隶属于古气候学世界数据服务（World Data Service for Paleoclimatology, WDS）。该数据集对应的NCEI研究类型为古海洋学（Paleoceanography）。数据集包含气候重建与古海洋学相关参数，研究区域为印度洋海域，时间覆盖范围为距今（before present, BP）21921年至3年的日历纪年时段。如需了解参数与研究区位的详细信息，请查阅元数据。使用本数据集时，请引用该研究。