SGER: Long coring in the Eastern Equatorial Pacific to address key questions of tropical and global climate change

这项奖励将为PI和两名研究生提供资金，让他们在从夏威夷到巴拿马的中转行程期间加入R.V.Knorr，以便使用R.V.Knorr新开发的长取心能力在东赤道太平洋(EEP)进行大约5天的活塞取心。结合多种取芯以恢复完整的全新世沉积物，长取芯能力将使PI能够瞄准EEP关键区域的高沉积速率环境，首次在EEP冷舌中心获得跨越四到五个冰川-间冰期旋回的沉积物。多传感器径迹(MST)将记录岩心，并将在岩心上收集初步的AMS放射性碳数据，以建立沉积速率和晚第四纪年龄模型。计划在旧金山举行的2008年秋季AGU会议上举行一个公开论坛，征求科学界对科学取心计划的意见。收集后，这些岩芯将无休止期地提供给有兴趣研究它们的研究人员。更广泛的影响包括研究生的参与以及与秘鲁和厄瓜多尔同事进行国际合作的可能性。这项研究将为研究地球历史上与社会相关的气候问题，如厄尔尼诺和拉尼娜变化提供材料。

This award will provide funds for the PI and two graduate students to join the R.V. Knorr during a transit leg from Hawaii to Panama in order to conduct approximately 5 days of piston coring in the Eastern Equatorial Pacific (EEP) using the newly developed long coring capability of the R.V. Knorr. In combination with multi-coring to recover intact Holocene sediments, the long coring capability will permit the PI to target high deposition rate settings in critical regions of the EEP to obtain sediment across four to five glacial-interglacial cycles in the heart of the cold tongue of the EEP for the first time. Cores will be logged by Multi Sensor Track (MST), and preliminary AMS radiocarbon dates will be collected on the cores to establish sedimentation rates and Late Quaternary age models. An open forum will be scheduled at the Fall 2008 AGU meeting in San Francisco to solicit input from the scientific community on the science coring plan. After collection, these cores will be made available to researchers interested in studying them without a moratorium period. The Broader Impacts include the participation of graduate students and the potential for international collaboration with colleagues from Peru and Ecuador. This research will provide material to study societally relevant climate issues such as El Nino and La Nina variability throughout Earth history.