Reconstructing Late Pleistocene Water Balance in Northern South America from a Marine Record, Ocean Drilling Program (ODP) Site 999, of the Colombia Basin, Caribbean Sea

该奖项是为了支持研究，将开发一个40万年的干湿条件记录从北方安第斯山脉使用沉积物在加勒比海积累的多代理分析。海洋钻探计划（ODP）站点999位于马格达莱纳河三角洲和接收陆地沉积物从北方安第斯山脉。 有孔虫，dynoflagellates，木炭，碳和氧的稳定同位素的分析将允许重建水分balances.The更广泛的影响，这项拟议中的研究是，它将导致更好地了解热带气候条件在冰川和提供基线信息的运动在第四纪热带辐合带。 最终，这项研究产生的数据将用于改进陆地碳库变化的模型预测。

This award is to support research that will develop a 400,000 year record of wet-dry conditions from the northern Andes using a multiproxy analysis of sediments accumulated in the Caribbean Sea.Ocean Drilling Program (ODP) Site 999 is located over the delta of the Magdalena River and receives terrestrial sediment from the northern Andes. Analysis of foraminifers, dynoflagellates, charcoal, and stable isotopes of carbon and oxygen will allow reconstruction of moisture balance.The broader impacts of this proposed research are that it will lead to a better understanding of tropical climate conditions during glacials and provide baseline information on the movement of the inter-tropical convergence zone during the Quaternary. Ultimately, data generated by this research will be used to improve model predictions of changes in the terrestrial carbon reservoir.