Climate Variability of Northeast Pacific/Western North America: Sub-millennial Scale Marine and Terrestrial Evidence from Santa Barbara Basin

Heusser，琳达E. Heusser Heusser，Inc. 标题：东北太平洋/西北太平洋气候变率 美国：千年尺度海洋和陆地 来自圣巴巴拉盆地的证据 该奖项支持一个旨在研究末次冰期开始时两次重大暖事件期间亚千年尺度自然气候变率的项目。 本项目的重点是从圣巴巴拉盆地ODP 893站点回收的快速沉积沉积物（100 cm/kyr）。 所采取的办法是利用相同沉积物样本的子集来审查海洋和陆地气候变化指标，从而能够直接比较这两个相互关联的生态系统对全球气候变化的反应速度和幅度的变化。 将分析65 - 108 kyr之间沉积的海洋浮游生物（有孔虫和放射虫）和花粉，间隔约为100- 200年。 这项研究的结果将导致更严格的验证模型，目前的气候变化和改善我们的理解之间的相互作用低频和高频气候过程和相关的强迫机制。

Abstract ATM-9633642 Heusser, Linda E. Heusser & Heusser, Inc. Title: Climate Variability of Northeast Pacific/Western North American: Sub-millennial Scale Marine and Terrestrial Evidence from Santa Barbara Basin This award supports a project that is designed to study sub- millennial scale natural climate variability during two major warm events at the beginning of the last glacial cycle. The project focuses on the rapidly deposited sediments ( 100cm/kyr) recoveped from ODP Site 893 in Santa Barbara Basin. The approach will be to examine both marine and terrestrial indicators of climate change using subsets of the same sediment samples, thus allowing for direct comparison of changes in the rate and amplitude of the response of these two interrelated ecosystems to global climate change. Marine plankton (foraminifera and radiolaria) and pollen in sediments deposited between 65 to 108kyr at approximately 100- 200 year intervals will be analyzed. Results of this study will lead to more rigorous validation of models of present climate change and improvement in our understanding of the interaction between low- and high-frequency climate processes and associated forcing mechanisms.