Collaborative Research: Hydrologic Variability in the Pacific Northwest During the Past 13,000 Years from High-Resolution Studies of Finely Laminated Lake Sediments

该奖项支持对华盛顿中北部地区精细层状湖泊沉积物进行多代理研究。研究人员将在东北太平洋地区的流域尺度上，研究过去13000年来大尺度气候强迫、区域气候变化、植被和湖泊响应之间的复杂关系。本研究的总体目标是研究区域降水-蒸发平衡的变化及其与太平洋年代际涛动（PDO）和厄尔尼诺-南方涛动（ENSO）的关系。为了实现这一目标，研究人员将结合整个地区的历史记录和现代校准研究来限制对代理数据的下核解释。这项研究将有助于生成西北太平洋的高分辨率气候历史，这将增加对PDO变化和其他气候事件如何影响区域气候的认识。这项研究将为研究生和本科生提供一个独特的专业发展经验。

This awards supports research to undertake a multi-proxy study of finely laminated lake sediments in the north central region of Washington. The researchers will investigate the complex relationships between large-scale climatic forcing, regional climatic change, and vegetation and lake responses over the past 13,000 years, at the watershed scale, in the northeast Pacific region. The overall goal of the study is to examine shifts in the regional precipitation-evaporation balance and its connection with the Pacific Decadal Oscillation (PDO) and El Nino Southern Oscillation (ENSO). To achieve this goal, the researchers will use a combination of historical records and modern calibration studies across the region to constrain the down-core interpretations of the proxy data. This research will help produce a high-resolution climate history for the Pacific Northwest that will increase knowledge of how regional climate is influenced by changes in the PDO and other climate events. The research will provide graduate and undergraduate students with a unique experience for professional development.