Model - data comparison of western African rainfall evolutions during the Last Interglacial (130-115 ka)

This dataset characterizes the evolution of western African precipitation indicated by marine sediment geochemical records in comparison to transient simulations using CCSM3 global climate model throughout the Last Interglacial (130-115 ka). It contains (1) defined tie-points (age models), newly published stable isotopes of benthic foraminifera and Al/Si log-ratios of eight marine sediment cores from the western African margin and (2) annual and seasonal rainfall anomalies (relative to pre-industrial values) for six characteristic latitudinal bands in western Africa simulated by CCSM3 (two transient simulations: one non-accelerated and one accelerated experiment).

本数据集描述了由西非海洋沉积物地球化学记录所指示的西非降水演化过程，并与使用 CCSM3 全球气候模型进行的间歇期（130-115 ka）瞬态模拟进行了对比。数据集包括：(1) 明确的关联点（年龄模型）、新发布的底栖有孔虫稳定同位素和八个来自西非边缘的海洋沉积物岩心的 Al/Si 对数比率，以及 (2) 由 CCSM3 模拟的西非六个典型纬度带的年际和季节性降雨异常（相对于工业化前值），包括两种瞬态模拟：一种非加速实验和一种加速实验。